[{"publication":"Astronomy & Astrophysics","main_file_link":[{"url":"https://doi.org/10.1051/0004-6361/201937300","open_access":"1"}],"doi":"10.1051/0004-6361/201937300","oa_version":"Published Version","volume":637,"day":"01","status":"public","date_created":"2023-08-03T10:13:10Z","external_id":{"arxiv":["2003.01120"]},"year":"2020","article_number":"A6","date_published":"2020-05-01T00:00:00Z","month":"05","intvolume":" 637","oa":1,"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"date_updated":"2023-08-09T12:56:32Z","publication_status":"published","abstract":[{"text":"Massive binaries that merge as compact objects are the progenitors of gravitational-wave sources. Most of these binaries experience one or more phases of mass transfer, during which one of the stars loses all or part of its outer envelope and becomes a stripped-envelope star. The evolution of the size of these stripped stars is crucial in determining whether they experience further interactions and understanding their ultimate fate. We present new calculations of stripped-envelope stars based on binary evolution models computed with MESA. We use these to investigate their radius evolution as a function of mass and metallicity. We further discuss their pre-supernova observable characteristics and potential consequences of their evolution on the properties of supernovae from stripped stars. At high metallicity, we find that practically all of the hydrogen-rich envelope is removed, which is in agreement with earlier findings. Only progenitors with initial masses below 10 M⊙ expand to large radii (up to 100 R⊙), while more massive progenitors remain compact. At low metallicity, a substantial amount of hydrogen remains and the progenitors can, in principle, expand to giant sizes (> 400 R⊙) for all masses we consider. This implies that they can fill their Roche lobe anew. We show that the prescriptions commonly used in population synthesis models underestimate the stellar radii by up to two orders of magnitude. We expect that this has consequences for the predictions for gravitational-wave sources from double neutron star mergers, particularly with regard to their metallicity dependence.","lang":"eng"}],"scopus_import":"1","arxiv":1,"type":"journal_article","citation":{"mla":"Laplace, E., et al. “The Expansion of Stripped-Envelope Stars: Consequences for Supernovae and Gravitational-Wave Progenitors.” Astronomy & Astrophysics, vol. 637, A6, EDP Sciences, 2020, doi:10.1051/0004-6361/201937300.","apa":"Laplace, E., Götberg, Y. L. L., de Mink, S. E., Justham, S., & Farmer, R. (2020). The expansion of stripped-envelope stars: Consequences for supernovae and gravitational-wave progenitors. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/201937300","chicago":"Laplace, E., Ylva Louise Linsdotter Götberg, S. E. de Mink, S. Justham, and R. Farmer. “The Expansion of Stripped-Envelope Stars: Consequences for Supernovae and Gravitational-Wave Progenitors.” Astronomy & Astrophysics. EDP Sciences, 2020. https://doi.org/10.1051/0004-6361/201937300.","ama":"Laplace E, Götberg YLL, de Mink SE, Justham S, Farmer R. The expansion of stripped-envelope stars: Consequences for supernovae and gravitational-wave progenitors. Astronomy & Astrophysics. 2020;637. doi:10.1051/0004-6361/201937300","short":"E. Laplace, Y.L.L. Götberg, S.E. de Mink, S. Justham, R. Farmer, Astronomy & Astrophysics 637 (2020).","ieee":"E. Laplace, Y. L. L. Götberg, S. E. de Mink, S. Justham, and R. Farmer, “The expansion of stripped-envelope stars: Consequences for supernovae and gravitational-wave progenitors,” Astronomy & Astrophysics, vol. 637. EDP Sciences, 2020.","ista":"Laplace E, Götberg YLL, de Mink SE, Justham S, Farmer R. 2020. The expansion of stripped-envelope stars: Consequences for supernovae and gravitational-wave progenitors. Astronomy & Astrophysics. 637, A6."},"publication_identifier":{"eissn":["1432-0746"],"issn":["0004-6361"]},"extern":"1","quality_controlled":"1","_id":"13464","article_processing_charge":"No","article_type":"original","language":[{"iso":"eng"}],"publisher":"EDP Sciences","author":[{"first_name":"E.","last_name":"Laplace","full_name":"Laplace, E."},{"last_name":"Götberg","orcid":"0000-0002-6960-6911","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","first_name":"Ylva Louise Linsdotter","full_name":"Götberg, Ylva Louise Linsdotter"},{"first_name":"S. E.","last_name":"de Mink","full_name":"de Mink, S. E."},{"full_name":"Justham, S.","last_name":"Justham","first_name":"S."},{"full_name":"Farmer, R.","first_name":"R.","last_name":"Farmer"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"The expansion of stripped-envelope stars: Consequences for supernovae and gravitational-wave progenitors"},{"publication_status":"published","quality_controlled":"1","_id":"13465","type":"journal_article","scopus_import":"1","abstract":[{"lang":"eng","text":"Gravitational-wave detections are now probing the black hole (BH) mass distribution, including the predicted pair-instability mass gap. These data require robust quantitative predictions, which are challenging to obtain. The most massive BH progenitors experience episodic mass ejections on time-scales shorter than the convective turnover time-scale. This invalidates the steady-state assumption on which the classic mixing length theory relies. We compare the final BH masses computed with two different versions of the stellar evolutionary code MESA\r\n: (i) using the default implementation of Paxton et al. (2018) and (ii) solving an additional equation accounting for the time-scale for convective deceleration. In the second grid, where stronger convection develops during the pulses and carries part of the energy, we find weaker pulses. This leads to lower amounts of mass being ejected and thus higher final BH masses of up to ∼5M⊙\r\n. The differences are much smaller for the progenitors that determine the maximum mass of BHs below the gap. This prediction is robust at MBH,max≃48M⊙\r\n, at least within the idealized context of this study. This is an encouraging indication that current models are robust enough for comparison with the present-day gravitational-wave detections. However, the large differences between individual models emphasize the importance of improving the treatment of convection in stellar models, especially in the light of the data anticipated from the third generation of gravitational-wave detectors."}],"arxiv":1,"extern":"1","publication_identifier":{"eissn":["1365-2966"],"issn":["0035-8711"]},"citation":{"chicago":"Renzo, M, R J Farmer, S Justham, S E de Mink, Ylva Louise Linsdotter Götberg, and P Marchant. “Sensitivity of the Lower Edge of the Pair-Instability Black Hole Mass Gap to the Treatment of Time-Dependent Convection.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2020. https://doi.org/10.1093/mnras/staa549.","ista":"Renzo M, Farmer RJ, Justham S, de Mink SE, Götberg YLL, Marchant P. 2020. Sensitivity of the lower edge of the pair-instability black hole mass gap to the treatment of time-dependent convection. Monthly Notices of the Royal Astronomical Society. 493(3), 4333–4341.","ieee":"M. Renzo, R. J. Farmer, S. Justham, S. E. de Mink, Y. L. L. Götberg, and P. Marchant, “Sensitivity of the lower edge of the pair-instability black hole mass gap to the treatment of time-dependent convection,” Monthly Notices of the Royal Astronomical Society, vol. 493, no. 3. Oxford University Press, pp. 4333–4341, 2020.","short":"M. Renzo, R.J. Farmer, S. Justham, S.E. de Mink, Y.L.L. Götberg, P. Marchant, Monthly Notices of the Royal Astronomical Society 493 (2020) 4333–4341.","ama":"Renzo M, Farmer RJ, Justham S, de Mink SE, Götberg YLL, Marchant P. Sensitivity of the lower edge of the pair-instability black hole mass gap to the treatment of time-dependent convection. Monthly Notices of the Royal Astronomical Society. 2020;493(3):4333-4341. doi:10.1093/mnras/staa549","mla":"Renzo, M., et al. “Sensitivity of the Lower Edge of the Pair-Instability Black Hole Mass Gap to the Treatment of Time-Dependent Convection.” Monthly Notices of the Royal Astronomical Society, vol. 493, no. 3, Oxford University Press, 2020, pp. 4333–41, doi:10.1093/mnras/staa549.","apa":"Renzo, M., Farmer, R. J., Justham, S., de Mink, S. E., Götberg, Y. L. L., & Marchant, P. (2020). Sensitivity of the lower edge of the pair-instability black hole mass gap to the treatment of time-dependent convection. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa549"},"article_type":"original","language":[{"iso":"eng"}],"article_processing_charge":"No","author":[{"full_name":"Renzo, M","first_name":"M","last_name":"Renzo"},{"full_name":"Farmer, R J","first_name":"R J","last_name":"Farmer"},{"full_name":"Justham, S","first_name":"S","last_name":"Justham"},{"last_name":"de Mink","first_name":"S E","full_name":"de Mink, S E"},{"full_name":"Götberg, Ylva Louise Linsdotter","last_name":"Götberg","orcid":"0000-0002-6960-6911","first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d"},{"first_name":"P","last_name":"Marchant","full_name":"Marchant, P"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Sensitivity of the lower edge of the pair-instability black hole mass gap to the treatment of time-dependent convection","publisher":"Oxford University Press","oa_version":"Published Version","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1093/mnras/staa549"}],"doi":"10.1093/mnras/staa549","publication":"Monthly Notices of the Royal Astronomical Society","status":"public","day":"04","date_created":"2023-08-03T10:13:20Z","volume":493,"year":"2020","external_id":{"arxiv":["2002.08200"]},"page":"4333-4341","issue":"3","oa":1,"date_updated":"2023-08-09T12:53:37Z","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"intvolume":" 493","month":"04","date_published":"2020-04-04T00:00:00Z"},{"oa_version":"Published Version","doi":"10.1051/0004-6361/201936743","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1051/0004-6361/201936743"}],"publication":"Astronomy & Astrophysics","date_created":"2023-08-03T10:13:29Z","status":"public","day":"05","volume":634,"year":"2020","external_id":{"arxiv":["1911.03477"]},"date_updated":"2023-08-09T12:50:01Z","keyword":["stars: massive / stars: emission-line / Be / binaries: spectroscopic / blue stragglers / Magellanic Clouds"],"oa":1,"intvolume":" 634","month":"02","date_published":"2020-02-05T00:00:00Z","article_number":"A51","publication_status":"published","_id":"13466","quality_controlled":"1","publication_identifier":{"eissn":["1432-0746"],"issn":["0004-6361"]},"citation":{"chicago":"Bodensteiner, J., H. Sana, L. Mahy, L. R. Patrick, A. de Koter, S. E. de Mink, C. J. Evans, et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE.” Astronomy & Astrophysics. EDP Sciences, 2020. https://doi.org/10.1051/0004-6361/201936743.","ieee":"J. Bodensteiner et al., “The young massive SMC cluster NGC 330 seen by MUSE,” Astronomy & Astrophysics, vol. 634. EDP Sciences, 2020.","short":"J. Bodensteiner, H. Sana, L. Mahy, L.R. Patrick, A. de Koter, S.E. de Mink, C.J. Evans, Y.L.L. Götberg, N. Langer, D.J. Lennon, F.R.N. Schneider, F. Tramper, Astronomy & Astrophysics 634 (2020).","ista":"Bodensteiner J, Sana H, Mahy L, Patrick LR, de Koter A, de Mink SE, Evans CJ, Götberg YLL, Langer N, Lennon DJ, Schneider FRN, Tramper F. 2020. The young massive SMC cluster NGC 330 seen by MUSE. Astronomy & Astrophysics. 634, A51.","ama":"Bodensteiner J, Sana H, Mahy L, et al. The young massive SMC cluster NGC 330 seen by MUSE. Astronomy & Astrophysics. 2020;634. doi:10.1051/0004-6361/201936743","mla":"Bodensteiner, J., et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE.” Astronomy & Astrophysics, vol. 634, A51, EDP Sciences, 2020, doi:10.1051/0004-6361/201936743.","apa":"Bodensteiner, J., Sana, H., Mahy, L., Patrick, L. R., de Koter, A., de Mink, S. E., … Tramper, F. (2020). The young massive SMC cluster NGC 330 seen by MUSE. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/201936743"},"extern":"1","type":"journal_article","scopus_import":"1","arxiv":1,"abstract":[{"text":"Context. A majority of massive stars are part of binary systems, a large fraction of which will inevitably interact during their lives. Binary-interaction products (BiPs), that is, stars affected by such interaction, are expected to be commonly present in stellar populations. BiPs are thus a crucial ingredient in the understanding of stellar evolution.\r\nAims. We aim to identify and characterize a statistically significant sample of BiPs by studying clusters of 10 − 40 Myr, an age at which binary population models predict the abundance of BiPs to be highest. One example of such a cluster is NGC 330 in the Small Magellanic Cloud.\r\nMethods. Using MUSE WFM-AO observations of NGC 330, we resolved the dense cluster core for the first time and were able to extract spectra of its entire massive star population. We developed an automated spectral classification scheme based on the equivalent widths of spectral lines in the red part of the spectrum.\r\nResults. We characterize the massive star content of the core of NGC 330, which contains more than 200 B stars, 2 O stars, 6 A-type supergiants, and 11 red supergiants. We find a lower limit on the Be star fraction of 32 ± 3% in the whole sample. It increases to at least 46 ± 10% when we only consider stars brighter than V = 17 mag. We estimate an age of the cluster core between 35 and 40 Myr and a total cluster mass of 88−18+17 × 103 M⊙.\r\nConclusions. We find that the population in the cluster core is different than the population in the outskirts: while the stellar content in the core appears to be older than the stars in the outskirts, the Be star fraction and the observed binary fraction are significantly higher. Furthermore, we detect several BiP candidates that will be subject of future studies.","lang":"eng"}],"language":[{"iso":"eng"}],"article_type":"original","article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"last_name":"Bodensteiner","first_name":"J.","full_name":"Bodensteiner, J."},{"first_name":"H.","last_name":"Sana","full_name":"Sana, H."},{"last_name":"Mahy","first_name":"L.","full_name":"Mahy, L."},{"full_name":"Patrick, L. R.","first_name":"L. R.","last_name":"Patrick"},{"first_name":"A.","last_name":"de Koter","full_name":"de Koter, A."},{"first_name":"S. E.","last_name":"de Mink","full_name":"de Mink, S. E."},{"full_name":"Evans, C. J.","last_name":"Evans","first_name":"C. J."},{"first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","orcid":"0000-0002-6960-6911","last_name":"Götberg","full_name":"Götberg, Ylva Louise Linsdotter"},{"full_name":"Langer, N.","last_name":"Langer","first_name":"N."},{"first_name":"D. J.","last_name":"Lennon","full_name":"Lennon, D. J."},{"full_name":"Schneider, F. R. N.","first_name":"F. R. N.","last_name":"Schneider"},{"first_name":"F.","last_name":"Tramper","full_name":"Tramper, F."}],"title":"The young massive SMC cluster NGC 330 seen by MUSE","publisher":"EDP Sciences"},{"oa_version":"Published Version","publication":"Astronomy & Astrophysics","doi":"10.1051/0004-6361/201936669","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1051/0004-6361/201936669"}],"date_created":"2023-08-03T10:13:43Z","day":"25","status":"public","volume":634,"year":"2020","external_id":{"arxiv":["1911.00543"]},"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"date_updated":"2023-08-09T12:46:05Z","oa":1,"date_published":"2020-02-25T00:00:00Z","intvolume":" 634","month":"02","article_number":"A134","publication_status":"published","_id":"13467","quality_controlled":"1","publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]},"extern":"1","citation":{"apa":"Götberg, Y. L. L., de Mink, S. E., McQuinn, M., Zapartas, E., Groh, J. H., & Norman, C. (2020). Contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/201936669","mla":"Götberg, Ylva Louise Linsdotter, et al. “Contribution from Stars Stripped in Binaries to Cosmic Reionization of Hydrogen and Helium.” Astronomy & Astrophysics, vol. 634, A134, EDP Sciences, 2020, doi:10.1051/0004-6361/201936669.","short":"Y.L.L. Götberg, S.E. de Mink, M. McQuinn, E. Zapartas, J.H. Groh, C. Norman, Astronomy & Astrophysics 634 (2020).","ista":"Götberg YLL, de Mink SE, McQuinn M, Zapartas E, Groh JH, Norman C. 2020. Contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium. Astronomy & Astrophysics. 634, A134.","ieee":"Y. L. L. Götberg, S. E. de Mink, M. McQuinn, E. Zapartas, J. H. Groh, and C. Norman, “Contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium,” Astronomy & Astrophysics, vol. 634. EDP Sciences, 2020.","ama":"Götberg YLL, de Mink SE, McQuinn M, Zapartas E, Groh JH, Norman C. Contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium. Astronomy & Astrophysics. 2020;634. doi:10.1051/0004-6361/201936669","chicago":"Götberg, Ylva Louise Linsdotter, S. E. de Mink, M. McQuinn, E. Zapartas, J. H. Groh, and C. Norman. “Contribution from Stars Stripped in Binaries to Cosmic Reionization of Hydrogen and Helium.” Astronomy & Astrophysics. EDP Sciences, 2020. https://doi.org/10.1051/0004-6361/201936669."},"scopus_import":"1","abstract":[{"lang":"eng","text":"Massive stars are often found in binary systems, and it has been argued that binary products boost the ionizing radiation of stellar populations. Accurate predictions for binary products are needed to understand and quantify their contribution to cosmic reionization. We investigate the contribution of stars stripped in binaries because (1) they are, arguably, the best-understood products of binary evolution, (2) we recently produced the first radiative transfer calculations for the atmospheres of these stripped stars that predict their ionizing spectra, and (3) they are very promising sources because they boost the ionizing emission of stellar populations at late times. This allows stellar feedback to clear the surroundings such that a higher fraction of their photons can escape and ionize the intergalactic medium. Combining our detailed predictions for the ionizing spectra with a simple cosmic reionization model, we estimate that stripped stars contributed tens of percent of the photons that caused cosmic reionization of hydrogen, depending on the assumed escape fractions. More importantly, stripped stars harden the ionizing emission. We estimate that the spectral index for the ionizing part of the spectrum can increase to −1 compared to ≲ − 2 for single stars. At high redshift, stripped stars and massive single stars combined dominate the He II-ionizing emission, but we expect that active galactic nuclei drive cosmic helium reionization. Further observational consequences we expect are (1) high ionization states for the intergalactic gas surrounding stellar systems, such as C IV and Si IV, and (2) additional heating of the intergalactic medium of up to a few thousand Kelvin. Quantifying these warrants the inclusion of accurate models for stripped stars and other binary products in full cosmological simulations."}],"arxiv":1,"type":"journal_article","language":[{"iso":"eng"}],"article_type":"original","article_processing_charge":"No","title":"Contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Götberg, Ylva Louise Linsdotter","last_name":"Götberg","orcid":"0000-0002-6960-6911","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","first_name":"Ylva Louise Linsdotter"},{"full_name":"de Mink, S. E.","last_name":"de Mink","first_name":"S. E."},{"full_name":"McQuinn, M.","first_name":"M.","last_name":"McQuinn"},{"first_name":"E.","last_name":"Zapartas","full_name":"Zapartas, E."},{"full_name":"Groh, J. H.","first_name":"J. H.","last_name":"Groh"},{"first_name":"C.","last_name":"Norman","full_name":"Norman, C."}],"publisher":"EDP Sciences"},{"quality_controlled":"1","_id":"13998","abstract":[{"text":"The interaction of strong near-infrared (NIR) laser pulses with wide-bandgap dielectrics produces high harmonics in the extreme ultraviolet (XUV) wavelength range. These observations have opened up the possibility of attosecond metrology in solids, which would benefit from a precise measurement of the emission times of individual harmonics with respect to the NIR laser field. Here we show that, when high-harmonics are detected from the input surface of a magnesium oxide crystal, a bichromatic probing of the XUV emission shows a clear synchronization largely consistent with a semiclassical model of electron–hole recollisions in bulk solids. On the other hand, the bichromatic spectrogram of harmonics originating from the exit surface of the 200 μm-thick crystal is strongly modified, indicating the influence of laser field distortions during propagation. Our tracking of sub-cycle electron and hole re-collisions at XUV energies is relevant to the development of solid-state sources of attosecond pulses.","lang":"eng"}],"scopus_import":"1","arxiv":1,"type":"journal_article","citation":{"chicago":"Vampa, Giulio, Jian Lu, Yong Sing You, Denitsa Rangelova Baykusheva, Mengxi Wu, Hanzhe Liu, Kenneth J Schafer, Mette B Gaarde, David A Reis, and Shambhu Ghimire. “Attosecond Synchronization of Extreme Ultraviolet High Harmonics from Crystals.” Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing, 2020. https://doi.org/10.1088/1361-6455/ab8e56.","ama":"Vampa G, Lu J, You YS, et al. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. 2020;53(14). doi:10.1088/1361-6455/ab8e56","short":"G. Vampa, J. Lu, Y.S. You, D.R. Baykusheva, M. Wu, H. Liu, K.J. Schafer, M.B. Gaarde, D.A. Reis, S. Ghimire, Journal of Physics B: Atomic, Molecular and Optical Physics 53 (2020).","ista":"Vampa G, Lu J, You YS, Baykusheva DR, Wu M, Liu H, Schafer KJ, Gaarde MB, Reis DA, Ghimire S. 2020. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. 53(14), 144003.","ieee":"G. Vampa et al., “Attosecond synchronization of extreme ultraviolet high harmonics from crystals,” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 53, no. 14. IOP Publishing, 2020.","mla":"Vampa, Giulio, et al. “Attosecond Synchronization of Extreme Ultraviolet High Harmonics from Crystals.” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 53, no. 14, 144003, IOP Publishing, 2020, doi:10.1088/1361-6455/ab8e56.","apa":"Vampa, G., Lu, J., You, Y. S., Baykusheva, D. R., Wu, M., Liu, H., … Ghimire, S. (2020). Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing. https://doi.org/10.1088/1361-6455/ab8e56"},"extern":"1","publication_identifier":{"eissn":["1361-6455"],"issn":["0953-4075"]},"publication_status":"published","author":[{"last_name":"Vampa","first_name":"Giulio","full_name":"Vampa, Giulio"},{"last_name":"Lu","first_name":"Jian","full_name":"Lu, Jian"},{"last_name":"You","first_name":"Yong Sing","full_name":"You, Yong Sing"},{"id":"71b4d059-2a03-11ee-914d-dfa3beed6530","first_name":"Denitsa Rangelova","last_name":"Baykusheva","full_name":"Baykusheva, Denitsa Rangelova"},{"full_name":"Wu, Mengxi","last_name":"Wu","first_name":"Mengxi"},{"full_name":"Liu, Hanzhe","first_name":"Hanzhe","last_name":"Liu"},{"last_name":"Schafer","first_name":"Kenneth J","full_name":"Schafer, Kenneth J"},{"first_name":"Mette B","last_name":"Gaarde","full_name":"Gaarde, Mette B"},{"first_name":"David A","last_name":"Reis","full_name":"Reis, David A"},{"last_name":"Ghimire","first_name":"Shambhu","full_name":"Ghimire, Shambhu"}],"title":"Attosecond synchronization of extreme ultraviolet high harmonics from crystals","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"IOP Publishing","article_type":"original","language":[{"iso":"eng"}],"article_processing_charge":"No","day":"17","status":"public","date_created":"2023-08-09T13:09:51Z","volume":53,"oa_version":"Preprint","publication":"Journal of Physics B: Atomic, Molecular and Optical Physics","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2001.09951"}],"doi":"10.1088/1361-6455/ab8e56","oa":1,"issue":"14","keyword":["Condensed Matter Physics","Atomic and Molecular Physics","and Optics"],"date_updated":"2023-08-22T07:36:36Z","article_number":"144003","date_published":"2020-06-17T00:00:00Z","intvolume":" 53","month":"06","year":"2020","external_id":{"arxiv":["2001.09951"]}},{"doi":"10.48550/arXiv.2002.02111","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2002.02111"}],"publication_status":"submitted","oa_version":"Preprint","type":"preprint","abstract":[{"lang":"eng","text":"The present review addresses the technical advances and the theoretical developments to realize and rationalize attosecond-science experiments that reveal a new dynamical time scale (10−15-10−18 s), with a particular emphasis on molecular systems and the implications of attosecond processes for chemical dynamics. After a brief outline of the theoretical framework for treating non-perturbative phenomena in Section 2, we introduce the physical mechanisms underlying high-harmonic generation and attosecond technology. The relevant technological developments and experimental schemes are covered in Section 3. Throughout the remainder of the chapter, we report on selected applications in molecular attosecond physics, thereby addressing specific phenomena mediated by purely electronic dynamics: charge localization in molecular hydrogen, charge migration in biorelevant molecules, high-harmonic spectroscopy, and delays in molecular photoionization."}],"arxiv":1,"citation":{"apa":"Baykusheva, D. R., & Wörner, H. J. (n.d.). Attosecond molecular spectroscopy and dynamics. https://doi.org/10.48550/arXiv.2002.02111","mla":"Baykusheva, Denitsa Rangelova, and Hans Jakob Wörner. Attosecond Molecular Spectroscopy and Dynamics. doi:10.48550/arXiv.2002.02111.","short":"D.R. Baykusheva, H.J. Wörner, (n.d.).","ieee":"D. R. Baykusheva and H. J. Wörner, “Attosecond molecular spectroscopy and dynamics.” .","ista":"Baykusheva DR, Wörner HJ. Attosecond molecular spectroscopy and dynamics. 10.48550/arXiv.2002.02111.","ama":"Baykusheva DR, Wörner HJ. Attosecond molecular spectroscopy and dynamics. doi:10.48550/arXiv.2002.02111","chicago":"Baykusheva, Denitsa Rangelova, and Hans Jakob Wörner. “Attosecond Molecular Spectroscopy and Dynamics,” n.d. https://doi.org/10.48550/arXiv.2002.02111."},"extern":"1","status":"public","day":"01","_id":"14028","date_created":"2023-08-10T06:47:45Z","article_processing_charge":"No","page":"2002.02111","external_id":{"arxiv":["2002.02111"]},"year":"2020","language":[{"iso":"eng"}],"month":"02","date_published":"2020-02-01T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Attosecond molecular spectroscopy and dynamics","oa":1,"author":[{"last_name":"Baykusheva","id":"71b4d059-2a03-11ee-914d-dfa3beed6530","first_name":"Denitsa Rangelova","full_name":"Baykusheva, Denitsa Rangelova"},{"full_name":"Wörner, Hans Jakob","last_name":"Wörner","first_name":"Hans Jakob"}],"date_updated":"2023-08-22T09:17:34Z"},{"publication_status":"submitted","doi":"10.48550/arXiv.2001.06683","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2001.06683"}],"publication":"arXiv","oa_version":"Preprint","type":"preprint","arxiv":1,"abstract":[{"text":"The Habitable Exoplanet Observatory, or HabEx, has been designed to be the Great Observatory of the 2030s. For the first time in human history, technologies have matured sufficiently to enable an affordable space-based telescope mission capable of discovering and characterizing Earthlike planets orbiting nearby bright sunlike stars in order to search for signs of habitability and biosignatures. Such a mission can also be equipped with instrumentation that will enable broad and exciting general astrophysics and planetary science not possible from current or planned facilities. HabEx is a space telescope with unique imaging and multi-object spectroscopic capabilities at wavelengths ranging from ultraviolet (UV) to near-IR. These capabilities allow for a broad suite of compelling science that cuts across the entire NASA astrophysics portfolio. HabEx has three primary science goals: (1) Seek out nearby worlds and explore their habitability; (2) Map out nearby planetary systems and understand the diversity of the worlds they contain; (3) Enable new explorations of astrophysical systems from our own solar system to external galaxies by extending our reach in the UV through near-IR. This Great Observatory science will be selected through a competed GO program, and will account for about 50% of the HabEx primary mission. The preferred HabEx architecture is a 4m, monolithic, off-axis telescope that is diffraction-limited at 0.4 microns and is in an L2 orbit. HabEx employs two starlight suppression systems: a coronagraph and a starshade, each with their own dedicated instrument.","lang":"eng"}],"extern":"1","citation":{"mla":"Gaudi, B. Scott, et al. “The Habitable Exoplanet Observatory (HabEx) Mission Concept Study Final Report.” ArXiv, 2001.06683, doi:10.48550/arXiv.2001.06683.","apa":"Gaudi, B. S., Seager, S., Mennesson, B., Kiessling, A., Warfield, K., Cahoy, K., … Zellem, R. (n.d.). The habitable exoplanet observatory (HabEx) mission concept study final report. arXiv. https://doi.org/10.48550/arXiv.2001.06683","chicago":"Gaudi, B. Scott, Sara Seager, Bertrand Mennesson, Alina Kiessling, Keith Warfield, Kerri Cahoy, John T. Clarke, et al. “The Habitable Exoplanet Observatory (HabEx) Mission Concept Study Final Report.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2001.06683.","short":"B.S. Gaudi, S. Seager, B. Mennesson, A. Kiessling, K. Warfield, K. Cahoy, J.T. Clarke, S.D.-G. Shawn Domagal-Goldman, L. Feinberg, O. Guyon, J. Kasdin, D. Mawet, P. Plavchan, T. Robinson, L. Rogers, P. Scowen, R. Somerville, K. Stapelfeldt, C. Stark, D. Stern, M. Turnbull, R. Amini, G. Kuan, S. Martin, R. Morgan, D. Redding, H.P. Stahl, R. Webb, O.A.-S. Oscar Alvarez-Salazar, W.L. Arnold, M. Arya, B. Balasubramanian, M. Baysinger, R. Bell, C. Below, J. Benson, L. Blais, J. Booth, R. Bourgeois, C. Bradford, A. Brewer, T. Brooks, E. Cady, M. Caldwell, R. Calvet, S. Carr, D. Chan, V. Cormarkovic, K. Coste, C. Cox, R. Danner, J. Davis, L. Dewell, L. Dorsett, D. Dunn, M. East, M. Effinger, R. Eng, G. Freebury, J. Garcia, J. Gaskin, S. Greene, J. Hennessy, E. Hilgemann, B. Hood, W. Holota, S. Howe, P. Huang, T. Hull, R. Hunt, K. Hurd, S. Johnson, A. Kissil, B. Knight, D. Kolenz, O. Kraus, J. Krist, M. Li, D. Lisman, M. Mandic, J. Mann, L. Marchen, C.M.-R. Colleen Marrese-Reading, J. McCready, J. McGown, J. Missun, A. Miyaguchi, B. Moore, B. Nemati, S. Nikzad, J. Nissen, M. Novicki, T. Perrine, C. Pineda, O. Polanco, D. Putnam, A. Qureshi, M. Richards, A.J.E. Riggs, M. Rodgers, M. Rud, N. Saini, D. Scalisi, D. Scharf, K. Schulz, G. Serabyn, N. Sigrist, G. Sikkia, A. Singleton, S. Shaklan, S. Smith, B. Southerd, M. Stahl, J. Steeves, B. Sturges, C. Sullivan, H. Tang, N. Taras, J. Tesch, M. Therrell, H. Tseng, M. Valente, D.V. Buren, J. Villalvazo, S. Warwick, D. Webb, T. Westerhoff, R. Wofford, G. Wu, J. Woo, M. Wood, J. Ziemer, G. Arney, J. Anderson, J.M.-A. Jesús Maíz-Apellániz, J. Bartlett, R. Belikov, E. Bendek, B. Cenko, E. Douglas, S. Dulz, C. Evans, V. Faramaz, Y.K. Feng, H. Ferguson, K. Follette, S. Ford, M. García, M. Geha, D. Gelino, Y.L.L. Götberg, S. Hildebrandt, R. Hu, K. Jahnke, G. Kennedy, L. Kreidberg, A. Isella, E. Lopez, F. Marchis, L. Macri, M. Marley, W. Matzko, J. Mazoyer, S. McCandliss, T. Meshkat, C. Mordasini, P. Morris, E. Nielsen, P. Newman, E. Petigura, M. Postman, A. Reines, A. Roberge, I. Roederer, G. Ruane, E. Schwieterman, D. Sirbu, C. Spalding, H. Teplitz, J. Tumlinson, N. Turner, J. Werk, A. Wofford, M. Wyatt, A. Young, R. Zellem, ArXiv (n.d.).","ieee":"B. S. Gaudi et al., “The habitable exoplanet observatory (HabEx) mission concept study final report,” arXiv. .","ista":"Gaudi BS et al. The habitable exoplanet observatory (HabEx) mission concept study final report. arXiv, 2001.06683.","ama":"Gaudi BS, Seager S, Mennesson B, et al. The habitable exoplanet observatory (HabEx) mission concept study final report. arXiv. doi:10.48550/arXiv.2001.06683"},"status":"public","day":"18","date_created":"2023-08-21T10:10:21Z","_id":"14095","external_id":{"arxiv":["2001.06683"]},"article_processing_charge":"No","year":"2020","language":[{"iso":"eng"}],"article_number":"2001.06683","month":"01","date_published":"2020-01-18T00:00:00Z","oa":1,"title":"The habitable exoplanet observatory (HabEx) mission concept study final report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Gaudi, B. Scott","first_name":"B. 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Binary neutron stars that merge within a Hubble time, as well as many other compact binaries, are expected to form via common envelope evolution. Yet five decades of research on common envelope evolution have not yet resulted in a satisfactory understanding of the multi-spatial multi-timescale evolution for the systems that lead to compact binaries. In this paper, we report on the first successful simulations of common envelope ejection leading to binary neutron star formation in 3D hydrodynamics. We simulate the dynamical inspiral phase of the interaction between a 12M⊙ red supergiant and a 1.4M⊙ neutron star for different initial separations and initial conditions. For all of our simulations, we find complete envelope ejection and final orbital separations of af≈1.3-5.1R⊙ depending on the simulation and criterion, leading to binary neutron stars that can merge within a Hubble time. We find αCE-equivalent efficiencies of ≈0.1-2.7 depending on the simulation and criterion, but this may be specific for these extended progenitors. We fully resolve the core of the star to ≲0.005R⊙ and our 3D hydrodynamics simulations are informed by an adjusted 1D analytic energy formalism and a 2D kinematics study in order to overcome the prohibitive computational cost of simulating these systems. The framework we develop in this paper can be used to simulate a wide variety of interactions between stars, from stellar mergers to common envelope episodes leading to GW sources."}],"arxiv":1,"citation":{"apa":"Jamie A. P. Law-Smith, J. A. P. L.-S., Everson, R. W., Enrico Ramirez-Ruiz, E. R.-R., Mink, S. E. de, Son, L. A. C. van, Götberg, Y. L. L., … Tenley Hutchinson-Smith, T. H.-S. (n.d.). Successful common envelope ejection and binary neutron star formation in 3D hydrodynamics. arXiv. https://doi.org/10.48550/arXiv.2011.06630","mla":"Jamie A. P. Law-Smith, Jamie A. P. Law-Smith, et al. “Successful Common Envelope Ejection and Binary Neutron Star Formation in 3D Hydrodynamics.” ArXiv, 2011.06630, doi:10.48550/arXiv.2011.06630.","ama":"Jamie A. P. Law-Smith JAPL-S, Everson RW, Enrico Ramirez-Ruiz ER-R, et al. Successful common envelope ejection and binary neutron star formation in 3D hydrodynamics. arXiv. doi:10.48550/arXiv.2011.06630","ista":"Jamie A. P. Law-Smith JAPL-S, Everson RW, Enrico Ramirez-Ruiz ER-R, Mink SE de, Son LAC van, Götberg YLL, Zellmann S, Alejandro Vigna-Gómez AV-G, Renzo M, Wu S, Schrøder SL, Foley RJ, Tenley Hutchinson-Smith TH-S. Successful common envelope ejection and binary neutron star formation in 3D hydrodynamics. arXiv, 2011.06630.","short":"J.A.P.L.-S. Jamie A. P. Law-Smith, R.W. Everson, E.R.-R. Enrico Ramirez-Ruiz, S.E. de Mink, L.A.C. van Son, Y.L.L. Götberg, S. Zellmann, A.V.-G. Alejandro Vigna-Gómez, M. Renzo, S. Wu, S.L. Schrøder, R.J. Foley, T.H.-S. Tenley Hutchinson-Smith, ArXiv (n.d.).","ieee":"J. A. P. L.-S. Jamie A. P. Law-Smith et al., “Successful common envelope ejection and binary neutron star formation in 3D hydrodynamics,” arXiv. .","chicago":"Jamie A. P. Law-Smith, Jamie A. P. Law-Smith, Rosa Wallace Everson, Enrico Ramirez-Ruiz Enrico Ramirez-Ruiz, Selma E. de Mink, Lieke A. C. van Son, Ylva Louise Linsdotter Götberg, Stefan Zellmann, et al. “Successful Common Envelope Ejection and Binary Neutron Star Formation in 3D Hydrodynamics.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2011.06630."},"year":"2020","language":[{"iso":"eng"}],"article_processing_charge":"No","external_id":{"arxiv":["2011.06630"]},"oa":1,"author":[{"full_name":"Jamie A. P. Law-Smith, Jamie A. P. Law-Smith","last_name":"Jamie A. P. Law-Smith","first_name":"Jamie A. P. Law-Smith"},{"first_name":"Rosa Wallace","last_name":"Everson","full_name":"Everson, Rosa Wallace"},{"full_name":"Enrico Ramirez-Ruiz, Enrico Ramirez-Ruiz","first_name":"Enrico Ramirez-Ruiz","last_name":"Enrico Ramirez-Ruiz"},{"first_name":"Selma E. de","last_name":"Mink","full_name":"Mink, Selma E. de"},{"full_name":"Son, Lieke A. C. van","first_name":"Lieke A. C. van","last_name":"Son"},{"first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","orcid":"0000-0002-6960-6911","last_name":"Götberg","full_name":"Götberg, Ylva Louise Linsdotter"},{"first_name":"Stefan","last_name":"Zellmann","full_name":"Zellmann, Stefan"},{"full_name":"Alejandro Vigna-Gómez, Alejandro Vigna-Gómez","last_name":"Alejandro Vigna-Gómez","first_name":"Alejandro Vigna-Gómez"},{"last_name":"Renzo","first_name":"Mathieu","full_name":"Renzo, Mathieu"},{"last_name":"Wu","first_name":"Samantha","full_name":"Wu, Samantha"},{"last_name":"Schrøder","first_name":"Sophie L.","full_name":"Schrøder, Sophie L."},{"full_name":"Foley, Ryan J.","last_name":"Foley","first_name":"Ryan J."},{"last_name":"Tenley Hutchinson-Smith","first_name":"Tenley Hutchinson-Smith","full_name":"Tenley Hutchinson-Smith, Tenley Hutchinson-Smith"}],"title":"Successful common envelope ejection and binary neutron star formation in 3D hydrodynamics","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2023-08-22T11:03:00Z","article_number":"2011.06630","month":"11","date_published":"2020-11-12T00:00:00Z"},{"date_updated":"2023-09-11T10:21:00Z","keyword":["Computational Mathematics","Computational Theory and Mathematics","Computer Science Applications","Molecular Biology","Biochemistry","Statistics and Probability"],"issue":"Supplement_2","oa":1,"intvolume":" 36","month":"12","date_published":"2020-12-01T00:00:00Z","year":"2020","page":"i919-i927","external_id":{"pmid":["33381818"]},"date_created":"2023-08-21T12:28:20Z","day":"01","status":"public","pmid":1,"volume":36,"related_material":{"link":[{"url":"https://github.com/ratschlab/scim","relation":"software"}]},"oa_version":"Published Version","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1093/bioinformatics/btaa843"}],"doi":"10.1093/bioinformatics/btaa843","publication":"Bioinformatics","title":"SCIM: Universal single-cell matching with unpaired feature sets","author":[{"full_name":"Stark, Stefan G","last_name":"Stark","first_name":"Stefan G"},{"first_name":"Joanna","last_name":"Ficek","full_name":"Ficek, Joanna"},{"full_name":"Locatello, Francesco","last_name":"Locatello","orcid":"0000-0002-4850-0683","first_name":"Francesco","id":"26cfd52f-2483-11ee-8040-88983bcc06d4"},{"first_name":"Ximena","last_name":"Bonilla","full_name":"Bonilla, Ximena"},{"first_name":"Stéphane","last_name":"Chevrier","full_name":"Chevrier, Stéphane"},{"first_name":"Franziska","last_name":"Singer","full_name":"Singer, Franziska"},{"full_name":"Aebersold, Rudolf","first_name":"Rudolf","last_name":"Aebersold"},{"last_name":"Al-Quaddoomi","first_name":"Faisal S","full_name":"Al-Quaddoomi, Faisal S"},{"full_name":"Albinus, Jonas","first_name":"Jonas","last_name":"Albinus"},{"first_name":"Ilaria","last_name":"Alborelli","full_name":"Alborelli, Ilaria"},{"first_name":"Sonali","last_name":"Andani","full_name":"Andani, Sonali"},{"last_name":"Attinger","first_name":"Per-Olof","full_name":"Attinger, Per-Olof"},{"last_name":"Bacac","first_name":"Marina","full_name":"Bacac, Marina"},{"full_name":"Baumhoer, Daniel","last_name":"Baumhoer","first_name":"Daniel"},{"full_name":"Beck-Schimmer, Beatrice","first_name":"Beatrice","last_name":"Beck-Schimmer"},{"full_name":"Beerenwinkel, Niko","last_name":"Beerenwinkel","first_name":"Niko"},{"full_name":"Beisel, Christian","last_name":"Beisel","first_name":"Christian"},{"full_name":"Bernasconi, Lara","last_name":"Bernasconi","first_name":"Lara"},{"full_name":"Bertolini, Anne","last_name":"Bertolini","first_name":"Anne"},{"last_name":"Bodenmiller","first_name":"Bernd","full_name":"Bodenmiller, Bernd"},{"last_name":"Bonilla","first_name":"Ximena","full_name":"Bonilla, Ximena"},{"last_name":"Casanova","first_name":"Ruben","full_name":"Casanova, Ruben"},{"full_name":"Chevrier, Stéphane","first_name":"Stéphane","last_name":"Chevrier"},{"full_name":"Chicherova, Natalia","last_name":"Chicherova","first_name":"Natalia"},{"full_name":"D'Costa, Maya","first_name":"Maya","last_name":"D'Costa"},{"full_name":"Danenberg, Esther","first_name":"Esther","last_name":"Danenberg"},{"full_name":"Davidson, Natalie","first_name":"Natalie","last_name":"Davidson"},{"full_name":"gan, Monica-Andreea Dră","last_name":"gan","first_name":"Monica-Andreea Dră"},{"full_name":"Dummer, Reinhard","last_name":"Dummer","first_name":"Reinhard"},{"full_name":"Engler, Stefanie","first_name":"Stefanie","last_name":"Engler"},{"full_name":"Erkens, Martin","last_name":"Erkens","first_name":"Martin"},{"full_name":"Eschbach, Katja","last_name":"Eschbach","first_name":"Katja"},{"first_name":"Cinzia","last_name":"Esposito","full_name":"Esposito, Cinzia"},{"full_name":"Fedier, André","first_name":"André","last_name":"Fedier"},{"full_name":"Ferreira, Pedro","first_name":"Pedro","last_name":"Ferreira"},{"full_name":"Ficek, Joanna","last_name":"Ficek","first_name":"Joanna"},{"last_name":"Frei","first_name":"Anja L","full_name":"Frei, Anja L"},{"full_name":"Frey, Bruno","first_name":"Bruno","last_name":"Frey"},{"full_name":"Goetze, Sandra","last_name":"Goetze","first_name":"Sandra"},{"first_name":"Linda","last_name":"Grob","full_name":"Grob, Linda"},{"full_name":"Gut, Gabriele","first_name":"Gabriele","last_name":"Gut"},{"full_name":"Günther, Detlef","first_name":"Detlef","last_name":"Günther"},{"first_name":"Martina","last_name":"Haberecker","full_name":"Haberecker, Martina"},{"first_name":"Pirmin","last_name":"Haeuptle","full_name":"Haeuptle, Pirmin"},{"full_name":"Heinzelmann-Schwarz, Viola","last_name":"Heinzelmann-Schwarz","first_name":"Viola"},{"last_name":"Herter","first_name":"Sylvia","full_name":"Herter, Sylvia"},{"full_name":"Holtackers, Rene","first_name":"Rene","last_name":"Holtackers"},{"full_name":"Huesser, Tamara","first_name":"Tamara","last_name":"Huesser"},{"first_name":"Anja","last_name":"Irmisch","full_name":"Irmisch, Anja"},{"first_name":"Francis","last_name":"Jacob","full_name":"Jacob, Francis"},{"full_name":"Jacobs, Andrea","first_name":"Andrea","last_name":"Jacobs"},{"full_name":"Jaeger, Tim M","first_name":"Tim M","last_name":"Jaeger"},{"full_name":"Jahn, Katharina","first_name":"Katharina","last_name":"Jahn"},{"first_name":"Alva R","last_name":"James","full_name":"James, Alva R"},{"first_name":"Philip M","last_name":"Jermann","full_name":"Jermann, Philip M"},{"last_name":"Kahles","first_name":"André","full_name":"Kahles, André"},{"last_name":"Kahraman","first_name":"Abdullah","full_name":"Kahraman, Abdullah"},{"first_name":"Viktor H","last_name":"Koelzer","full_name":"Koelzer, Viktor H"},{"full_name":"Kuebler, Werner","first_name":"Werner","last_name":"Kuebler"},{"full_name":"Kuipers, Jack","first_name":"Jack","last_name":"Kuipers"},{"full_name":"Kunze, Christian P","first_name":"Christian P","last_name":"Kunze"},{"last_name":"Kurzeder","first_name":"Christian","full_name":"Kurzeder, Christian"},{"full_name":"Lehmann, Kjong-Van","first_name":"Kjong-Van","last_name":"Lehmann"},{"full_name":"Levesque, Mitchell","last_name":"Levesque","first_name":"Mitchell"},{"first_name":"Sebastian","last_name":"Lugert","full_name":"Lugert, Sebastian"},{"first_name":"Gerd","last_name":"Maass","full_name":"Maass, Gerd"},{"last_name":"Manz","first_name":"Markus","full_name":"Manz, Markus"},{"full_name":"Markolin, Philipp","first_name":"Philipp","last_name":"Markolin"},{"last_name":"Mena","first_name":"Julien","full_name":"Mena, Julien"},{"last_name":"Menzel","first_name":"Ulrike","full_name":"Menzel, Ulrike"},{"full_name":"Metzler, Julian M","last_name":"Metzler","first_name":"Julian M"},{"last_name":"Miglino","first_name":"Nicola","full_name":"Miglino, Nicola"},{"last_name":"Milani","first_name":"Emanuela S","full_name":"Milani, Emanuela S"},{"last_name":"Moch","first_name":"Holger","full_name":"Moch, Holger"},{"full_name":"Muenst, Simone","last_name":"Muenst","first_name":"Simone"},{"first_name":"Riccardo","last_name":"Murri","full_name":"Murri, Riccardo"},{"last_name":"Ng","first_name":"Charlotte KY","full_name":"Ng, Charlotte KY"},{"last_name":"Nicolet","first_name":"Stefan","full_name":"Nicolet, Stefan"},{"first_name":"Marta","last_name":"Nowak","full_name":"Nowak, Marta"},{"full_name":"Pedrioli, Patrick GA","last_name":"Pedrioli","first_name":"Patrick GA"},{"full_name":"Pelkmans, Lucas","last_name":"Pelkmans","first_name":"Lucas"},{"first_name":"Salvatore","last_name":"Piscuoglio","full_name":"Piscuoglio, Salvatore"},{"full_name":"Prummer, Michael","last_name":"Prummer","first_name":"Michael"},{"last_name":"Ritter","first_name":"Mathilde","full_name":"Ritter, Mathilde"},{"first_name":"Christian","last_name":"Rommel","full_name":"Rommel, Christian"},{"first_name":"María L","last_name":"Rosano-González","full_name":"Rosano-González, María L"},{"first_name":"Gunnar","last_name":"Rätsch","full_name":"Rätsch, Gunnar"},{"first_name":"Natascha","last_name":"Santacroce","full_name":"Santacroce, Natascha"},{"full_name":"Castillo, Jacobo Sarabia del","last_name":"Castillo","first_name":"Jacobo Sarabia del"},{"last_name":"Schlenker","first_name":"Ramona","full_name":"Schlenker, Ramona"},{"full_name":"Schwalie, Petra C","last_name":"Schwalie","first_name":"Petra C"},{"full_name":"Schwan, Severin","first_name":"Severin","last_name":"Schwan"},{"last_name":"Schär","first_name":"Tobias","full_name":"Schär, Tobias"},{"full_name":"Senti, Gabriela","last_name":"Senti","first_name":"Gabriela"},{"last_name":"Singer","first_name":"Franziska","full_name":"Singer, Franziska"},{"full_name":"Sivapatham, Sujana","last_name":"Sivapatham","first_name":"Sujana"},{"first_name":"Berend","last_name":"Snijder","full_name":"Snijder, Berend"},{"last_name":"Sobottka","first_name":"Bettina","full_name":"Sobottka, Bettina"},{"first_name":"Vipin T","last_name":"Sreedharan","full_name":"Sreedharan, Vipin T"},{"full_name":"Stark, Stefan","last_name":"Stark","first_name":"Stefan"},{"last_name":"Stekhoven","first_name":"Daniel J","full_name":"Stekhoven, Daniel J"},{"last_name":"Theocharides","first_name":"Alexandre PA","full_name":"Theocharides, Alexandre PA"},{"full_name":"Thomas, Tinu M","first_name":"Tinu M","last_name":"Thomas"},{"last_name":"Tolnay","first_name":"Markus","full_name":"Tolnay, Markus"},{"last_name":"Tosevski","first_name":"Vinko","full_name":"Tosevski, Vinko"},{"full_name":"Toussaint, Nora C","first_name":"Nora C","last_name":"Toussaint"},{"first_name":"Mustafa A","last_name":"Tuncel","full_name":"Tuncel, Mustafa A"},{"first_name":"Marina","last_name":"Tusup","full_name":"Tusup, Marina"},{"first_name":"Audrey Van","last_name":"Drogen","full_name":"Drogen, Audrey Van"},{"full_name":"Vetter, Marcus","first_name":"Marcus","last_name":"Vetter"},{"first_name":"Tatjana","last_name":"Vlajnic","full_name":"Vlajnic, Tatjana"},{"last_name":"Weber","first_name":"Sandra","full_name":"Weber, Sandra"},{"full_name":"Weber, Walter P","first_name":"Walter P","last_name":"Weber"},{"full_name":"Wegmann, Rebekka","first_name":"Rebekka","last_name":"Wegmann"},{"last_name":"Weller","first_name":"Michael","full_name":"Weller, Michael"},{"full_name":"Wendt, Fabian","last_name":"Wendt","first_name":"Fabian"},{"first_name":"Norbert","last_name":"Wey","full_name":"Wey, Norbert"},{"first_name":"Andreas","last_name":"Wicki","full_name":"Wicki, Andreas"},{"first_name":"Bernd","last_name":"Wollscheid","full_name":"Wollscheid, Bernd"},{"first_name":"Shuqing","last_name":"Yu","full_name":"Yu, Shuqing"},{"full_name":"Ziegler, Johanna","last_name":"Ziegler","first_name":"Johanna"},{"full_name":"Zimmermann, Marc","last_name":"Zimmermann","first_name":"Marc"},{"last_name":"Zoche","first_name":"Martin","full_name":"Zoche, Martin"},{"first_name":"Gregor","last_name":"Zuend","full_name":"Zuend, Gregor"},{"last_name":"Rätsch","first_name":"Gunnar","full_name":"Rätsch, Gunnar"},{"full_name":"Lehmann, Kjong-Van","first_name":"Kjong-Van","last_name":"Lehmann"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Oxford University Press","language":[{"iso":"eng"}],"article_type":"original","article_processing_charge":"No","department":[{"_id":"FrLo"}],"_id":"14125","quality_controlled":"1","publication_identifier":{"eissn":["1367-4811"]},"extern":"1","citation":{"mla":"Stark, Stefan G., et al. “SCIM: Universal Single-Cell Matching with Unpaired Feature Sets.” Bioinformatics, vol. 36, no. Supplement_2, Oxford University Press, 2020, pp. i919–27, doi:10.1093/bioinformatics/btaa843.","apa":"Stark, S. G., Ficek, J., Locatello, F., Bonilla, X., Chevrier, S., Singer, F., … Lehmann, K.-V. (2020). SCIM: Universal single-cell matching with unpaired feature sets. Bioinformatics. Oxford University Press. https://doi.org/10.1093/bioinformatics/btaa843","chicago":"Stark, Stefan G, Joanna Ficek, Francesco Locatello, Ximena Bonilla, Stéphane Chevrier, Franziska Singer, Rudolf Aebersold, et al. “SCIM: Universal Single-Cell Matching with Unpaired Feature Sets.” Bioinformatics. Oxford University Press, 2020. https://doi.org/10.1093/bioinformatics/btaa843.","ama":"Stark SG, Ficek J, Locatello F, et al. SCIM: Universal single-cell matching with unpaired feature sets. Bioinformatics. 2020;36(Supplement_2):i919-i927. doi:10.1093/bioinformatics/btaa843","ista":"Stark SG et al. 2020. SCIM: Universal single-cell matching with unpaired feature sets. Bioinformatics. 36(Supplement_2), i919–i927.","short":"S.G. Stark, J. Ficek, F. Locatello, X. Bonilla, S. Chevrier, F. Singer, R. Aebersold, F.S. Al-Quaddoomi, J. Albinus, I. Alborelli, S. Andani, P.-O. Attinger, M. Bacac, D. Baumhoer, B. Beck-Schimmer, N. Beerenwinkel, C. Beisel, L. Bernasconi, A. Bertolini, B. Bodenmiller, X. Bonilla, R. Casanova, S. Chevrier, N. Chicherova, M. D’Costa, E. Danenberg, N. Davidson, M.-A.D. gan, R. Dummer, S. Engler, M. Erkens, K. Eschbach, C. Esposito, A. Fedier, P. Ferreira, J. Ficek, A.L. Frei, B. Frey, S. Goetze, L. Grob, G. Gut, D. Günther, M. Haberecker, P. Haeuptle, V. Heinzelmann-Schwarz, S. Herter, R. Holtackers, T. Huesser, A. Irmisch, F. Jacob, A. Jacobs, T.M. Jaeger, K. Jahn, A.R. James, P.M. Jermann, A. Kahles, A. Kahraman, V.H. Koelzer, W. Kuebler, J. Kuipers, C.P. Kunze, C. Kurzeder, K.-V. Lehmann, M. Levesque, S. Lugert, G. Maass, M. Manz, P. Markolin, J. Mena, U. Menzel, J.M. Metzler, N. Miglino, E.S. Milani, H. Moch, S. Muenst, R. Murri, C.K. Ng, S. Nicolet, M. Nowak, P.G. Pedrioli, L. Pelkmans, S. Piscuoglio, M. Prummer, M. Ritter, C. Rommel, M.L. Rosano-González, G. Rätsch, N. Santacroce, J.S. del Castillo, R. Schlenker, P.C. Schwalie, S. Schwan, T. Schär, G. Senti, F. Singer, S. Sivapatham, B. Snijder, B. Sobottka, V.T. Sreedharan, S. Stark, D.J. Stekhoven, A.P. Theocharides, T.M. Thomas, M. Tolnay, V. Tosevski, N.C. Toussaint, M.A. Tuncel, M. Tusup, A.V. Drogen, M. Vetter, T. Vlajnic, S. Weber, W.P. Weber, R. Wegmann, M. Weller, F. Wendt, N. Wey, A. Wicki, B. Wollscheid, S. Yu, J. Ziegler, M. Zimmermann, M. Zoche, G. Zuend, G. Rätsch, K.-V. Lehmann, Bioinformatics 36 (2020) i919–i927.","ieee":"S. G. Stark et al., “SCIM: Universal single-cell matching with unpaired feature sets,” Bioinformatics, vol. 36, no. Supplement_2. Oxford University Press, pp. i919–i927, 2020."},"type":"journal_article","scopus_import":"1","abstract":[{"lang":"eng","text":"Motivation: Recent technological advances have led to an increase in the production and availability of single-cell data. The ability to integrate a set of multi-technology measurements would allow the identification of biologically or clinically meaningful observations through the unification of the perspectives afforded by each technology. In most cases, however, profiling technologies consume the used cells and thus pairwise correspondences between datasets are lost. Due to the sheer size single-cell datasets can acquire, scalable algorithms that are able to universally match single-cell measurements carried out in one cell to its corresponding sibling in another technology are needed.\r\nResults: We propose Single-Cell data Integration via Matching (SCIM), a scalable approach to recover such correspondences in two or more technologies. SCIM assumes that cells share a common (low-dimensional) underlying structure and that the underlying cell distribution is approximately constant across technologies. It constructs a technology-invariant latent space using an autoencoder framework with an adversarial objective. Multi-modal datasets are integrated by pairing cells across technologies using a bipartite matching scheme that operates on the low-dimensional latent representations. We evaluate SCIM on a simulated cellular branching process and show that the cell-to-cell matches derived by SCIM reflect the same pseudotime on the simulated dataset. Moreover, we apply our method to two real-world scenarios, a melanoma tumor sample and a human bone marrow sample, where we pair cells from a scRNA dataset to their sibling cells in a CyTOF dataset achieving 90% and 78% cell-matching accuracy for each one of the samples, respectively."}],"publication_status":"published"},{"conference":{"name":"AAAI: Conference on Artificial Intelligence","end_date":"2020-02-12","start_date":"2020-02-07","location":"New York, NY, United States"},"page":"13681-13684","external_id":{"arxiv":["2007.14184"]},"year":"2020","date_published":"2020-07-28T00:00:00Z","month":"07","intvolume":" 34","oa":1,"issue":"9","date_updated":"2023-09-12T07:44:48Z","publication":"The 34th AAAI Conference on Artificial Intelligence","main_file_link":[{"url":"https://arxiv.org/abs/2007.14184","open_access":"1"}],"doi":"10.1609/aaai.v34i09.7120","oa_version":"Preprint","volume":34,"status":"public","day":"28","date_created":"2023-08-22T14:07:26Z","department":[{"_id":"FrLo"}],"article_processing_charge":"No","language":[{"iso":"eng"}],"publisher":"Association for the Advancement of Artificial Intelligence","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"A commentary on the unsupervised learning of disentangled representations","author":[{"first_name":"Francesco","id":"26cfd52f-2483-11ee-8040-88983bcc06d4","last_name":"Locatello","orcid":"0000-0002-4850-0683","full_name":"Locatello, Francesco"},{"full_name":"Bauer, Stefan","first_name":"Stefan","last_name":"Bauer"},{"first_name":"Mario","last_name":"Lucic","full_name":"Lucic, Mario"},{"first_name":"Gunnar","last_name":"Rätsch","full_name":"Rätsch, Gunnar"},{"full_name":"Gelly, Sylvain","first_name":"Sylvain","last_name":"Gelly"},{"full_name":"Schölkopf, Bernhard","last_name":"Schölkopf","first_name":"Bernhard"},{"full_name":"Bachem, Olivier","last_name":"Bachem","first_name":"Olivier"}],"publication_status":"published","scopus_import":"1","arxiv":1,"abstract":[{"text":"The goal of the unsupervised learning of disentangled representations is to\r\nseparate the independent explanatory factors of variation in the data without\r\naccess to supervision. In this paper, we summarize the results of Locatello et\r\nal., 2019, and focus on their implications for practitioners. We discuss the\r\ntheoretical result showing that the unsupervised learning of disentangled\r\nrepresentations is fundamentally impossible without inductive biases and the\r\npractical challenges it entails. Finally, we comment on our experimental\r\nfindings, highlighting the limitations of state-of-the-art approaches and\r\ndirections for future research.","lang":"eng"}],"type":"conference","citation":{"mla":"Locatello, Francesco, et al. “A Commentary on the Unsupervised Learning of Disentangled Representations.” The 34th AAAI Conference on Artificial Intelligence, vol. 34, no. 9, Association for the Advancement of Artificial Intelligence, 2020, pp. 13681–84, doi:10.1609/aaai.v34i09.7120.","apa":"Locatello, F., Bauer, S., Lucic, M., Rätsch, G., Gelly, S., Schölkopf, B., & Bachem, O. (2020). A commentary on the unsupervised learning of disentangled representations. In The 34th AAAI Conference on Artificial Intelligence (Vol. 34, pp. 13681–13684). New York, NY, United States: Association for the Advancement of Artificial Intelligence. https://doi.org/10.1609/aaai.v34i09.7120","chicago":"Locatello, Francesco, Stefan Bauer, Mario Lucic, Gunnar Rätsch, Sylvain Gelly, Bernhard Schölkopf, and Olivier Bachem. “A Commentary on the Unsupervised Learning of Disentangled Representations.” In The 34th AAAI Conference on Artificial Intelligence, 34:13681–84. Association for the Advancement of Artificial Intelligence, 2020. https://doi.org/10.1609/aaai.v34i09.7120.","short":"F. Locatello, S. Bauer, M. Lucic, G. Rätsch, S. Gelly, B. Schölkopf, O. Bachem, in:, The 34th AAAI Conference on Artificial Intelligence, Association for the Advancement of Artificial Intelligence, 2020, pp. 13681–13684.","ieee":"F. Locatello et al., “A commentary on the unsupervised learning of disentangled representations,” in The 34th AAAI Conference on Artificial Intelligence, New York, NY, United States, 2020, vol. 34, no. 9, pp. 13681–13684.","ista":"Locatello F, Bauer S, Lucic M, Rätsch G, Gelly S, Schölkopf B, Bachem O. 2020. A commentary on the unsupervised learning of disentangled representations. The 34th AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence vol. 34, 13681–13684.","ama":"Locatello F, Bauer S, Lucic M, et al. A commentary on the unsupervised learning of disentangled representations. In: The 34th AAAI Conference on Artificial Intelligence. Vol 34. Association for the Advancement of Artificial Intelligence; 2020:13681-13684. doi:10.1609/aaai.v34i09.7120"},"extern":"1","publication_identifier":{"eissn":["2374-3468"],"isbn":["9781577358350"]},"quality_controlled":"1","_id":"14186"},{"volume":119,"day":"27","status":"public","date_created":"2023-08-22T14:07:52Z","publication":"Proceedings of the 37th International Conference on Machine Learning","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2002.11860"}],"oa_version":"Preprint","date_published":"2020-07-27T00:00:00Z","alternative_title":["PMLR"],"intvolume":" 119","month":"07","oa":1,"date_updated":"2023-09-12T08:03:40Z","conference":{"location":"Virtual","name":"International Conference on Machine Learning","start_date":"2020-07-13","end_date":"2020-07-18"},"external_id":{"arxiv":["2002.11860"]},"page":"7253-7262","year":"2020","abstract":[{"text":"We propose a novel Stochastic Frank-Wolfe (a.k.a. conditional gradient)\r\nalgorithm for constrained smooth finite-sum minimization with a generalized\r\nlinear prediction/structure. This class of problems includes empirical risk\r\nminimization with sparse, low-rank, or other structured constraints. The\r\nproposed method is simple to implement, does not require step-size tuning, and\r\nhas a constant per-iteration cost that is independent of the dataset size.\r\nFurthermore, as a byproduct of the method we obtain a stochastic estimator of\r\nthe Frank-Wolfe gap that can be used as a stopping criterion. Depending on the\r\nsetting, the proposed method matches or improves on the best computational\r\nguarantees for Stochastic Frank-Wolfe algorithms. Benchmarks on several\r\ndatasets highlight different regimes in which the proposed method exhibits a\r\nfaster empirical convergence than related methods. Finally, we provide an\r\nimplementation of all considered methods in an open-source package.","lang":"eng"}],"arxiv":1,"type":"conference","extern":"1","citation":{"ama":"Négiar G, Dresdner G, Tsai A, et al. Stochastic Frank-Wolfe for constrained finite-sum minimization. In: Proceedings of the 37th International Conference on Machine Learning. Vol 119. ; 2020:7253-7262.","short":"G. Négiar, G. Dresdner, A. Tsai, L.E. Ghaoui, F. Locatello, R.M. Freund, F. Pedregosa, in:, Proceedings of the 37th International Conference on Machine Learning, 2020, pp. 7253–7262.","ieee":"G. Négiar et al., “Stochastic Frank-Wolfe for constrained finite-sum minimization,” in Proceedings of the 37th International Conference on Machine Learning, Virtual, 2020, vol. 119, pp. 7253–7262.","ista":"Négiar G, Dresdner G, Tsai A, Ghaoui LE, Locatello F, Freund RM, Pedregosa F. 2020. Stochastic Frank-Wolfe for constrained finite-sum minimization. Proceedings of the 37th International Conference on Machine Learning. International Conference on Machine Learning, PMLR, vol. 119, 7253–7262.","chicago":"Négiar, Geoffrey, Gideon Dresdner, Alicia Tsai, Laurent El Ghaoui, Francesco Locatello, Robert M. Freund, and Fabian Pedregosa. “Stochastic Frank-Wolfe for Constrained Finite-Sum Minimization.” In Proceedings of the 37th International Conference on Machine Learning, 119:7253–62, 2020.","apa":"Négiar, G., Dresdner, G., Tsai, A., Ghaoui, L. E., Locatello, F., Freund, R. M., & Pedregosa, F. (2020). Stochastic Frank-Wolfe for constrained finite-sum minimization. In Proceedings of the 37th International Conference on Machine Learning (Vol. 119, pp. 7253–7262). Virtual.","mla":"Négiar, Geoffrey, et al. “Stochastic Frank-Wolfe for Constrained Finite-Sum Minimization.” Proceedings of the 37th International Conference on Machine Learning, vol. 119, 2020, pp. 7253–62."},"quality_controlled":"1","_id":"14187","publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Stochastic Frank-Wolfe for constrained finite-sum minimization","author":[{"first_name":"Geoffrey","last_name":"Négiar","full_name":"Négiar, Geoffrey"},{"last_name":"Dresdner","first_name":"Gideon","full_name":"Dresdner, Gideon"},{"last_name":"Tsai","first_name":"Alicia","full_name":"Tsai, Alicia"},{"last_name":"Ghaoui","first_name":"Laurent El","full_name":"Ghaoui, Laurent El"},{"first_name":"Francesco","id":"26cfd52f-2483-11ee-8040-88983bcc06d4","last_name":"Locatello","orcid":"0000-0002-4850-0683","full_name":"Locatello, Francesco"},{"first_name":"Robert M.","last_name":"Freund","full_name":"Freund, Robert M."},{"first_name":"Fabian","last_name":"Pedregosa","full_name":"Pedregosa, Fabian"}],"department":[{"_id":"FrLo"}],"article_processing_charge":"No","language":[{"iso":"eng"}]},{"quality_controlled":"1","_id":"14188","arxiv":1,"scopus_import":"1","abstract":[{"text":"Intelligent agents should be able to learn useful representations by\r\nobserving changes in their environment. We model such observations as pairs of\r\nnon-i.i.d. images sharing at least one of the underlying factors of variation.\r\nFirst, we theoretically show that only knowing how many factors have changed,\r\nbut not which ones, is sufficient to learn disentangled representations.\r\nSecond, we provide practical algorithms that learn disentangled representations\r\nfrom pairs of images without requiring annotation of groups, individual\r\nfactors, or the number of factors that have changed. Third, we perform a\r\nlarge-scale empirical study and show that such pairs of observations are\r\nsufficient to reliably learn disentangled representations on several benchmark\r\ndata sets. Finally, we evaluate our learned representations and find that they\r\nare simultaneously useful on a diverse suite of tasks, including generalization\r\nunder covariate shifts, fairness, and abstract reasoning. Overall, our results\r\ndemonstrate that weak supervision enables learning of useful disentangled\r\nrepresentations in realistic scenarios.","lang":"eng"}],"type":"conference","citation":{"mla":"Locatello, Francesco, et al. “Weakly-Supervised Disentanglement without Compromises.” Proceedings of the 37th International Conference on Machine Learning, vol. 119, 2020, pp. 6348–6359.","apa":"Locatello, F., Poole, B., Rätsch, G., Schölkopf, B., Bachem, O., & Tschannen, M. (2020). Weakly-supervised disentanglement without compromises. In Proceedings of the 37th International Conference on Machine Learning (Vol. 119, pp. 6348–6359). Virtual.","chicago":"Locatello, Francesco, Ben Poole, Gunnar Rätsch, Bernhard Schölkopf, Olivier Bachem, and Michael Tschannen. “Weakly-Supervised Disentanglement without Compromises.” In Proceedings of the 37th International Conference on Machine Learning, 119:6348–6359, 2020.","ama":"Locatello F, Poole B, Rätsch G, Schölkopf B, Bachem O, Tschannen M. Weakly-supervised disentanglement without compromises. In: Proceedings of the 37th International Conference on Machine Learning. Vol 119. ; 2020:6348–6359.","ieee":"F. Locatello, B. Poole, G. Rätsch, B. Schölkopf, O. Bachem, and M. Tschannen, “Weakly-supervised disentanglement without compromises,” in Proceedings of the 37th International Conference on Machine Learning, Virtual, 2020, vol. 119, pp. 6348–6359.","short":"F. Locatello, B. Poole, G. Rätsch, B. Schölkopf, O. Bachem, M. Tschannen, in:, Proceedings of the 37th International Conference on Machine Learning, 2020, pp. 6348–6359.","ista":"Locatello F, Poole B, Rätsch G, Schölkopf B, Bachem O, Tschannen M. 2020. Weakly-supervised disentanglement without compromises. Proceedings of the 37th International Conference on Machine Learning. International Conference on Machine Learning, PMLR, vol. 119, 6348–6359."},"extern":"1","publication_status":"published","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Locatello, Francesco","orcid":"0000-0002-4850-0683","last_name":"Locatello","first_name":"Francesco","id":"26cfd52f-2483-11ee-8040-88983bcc06d4"},{"last_name":"Poole","first_name":"Ben","full_name":"Poole, Ben"},{"full_name":"Rätsch, Gunnar","last_name":"Rätsch","first_name":"Gunnar"},{"full_name":"Schölkopf, Bernhard","first_name":"Bernhard","last_name":"Schölkopf"},{"first_name":"Olivier","last_name":"Bachem","full_name":"Bachem, Olivier"},{"full_name":"Tschannen, Michael","first_name":"Michael","last_name":"Tschannen"}],"title":"Weakly-supervised disentanglement without compromises","language":[{"iso":"eng"}],"department":[{"_id":"FrLo"}],"article_processing_charge":"No","day":"07","status":"public","date_created":"2023-08-22T14:08:14Z","volume":119,"oa_version":"Preprint","publication":"Proceedings of the 37th International Conference on Machine Learning","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2002.02886"}],"oa":1,"date_updated":"2023-09-12T07:59:29Z","alternative_title":["PMLR"],"date_published":"2020-07-07T00:00:00Z","month":"07","intvolume":" 119","year":"2020","conference":{"location":"Virtual","name":"International Conference on Machine Learning","start_date":"2020-07-13","end_date":"2020-07-18"},"external_id":{"arxiv":["2002.02886"]},"page":"6348–6359"},{"publication_status":"published","scopus_import":"1","arxiv":1,"abstract":[{"lang":"eng","text":"The idea behind the unsupervised learning of disentangled representations is that real-world data is generated by a few explanatory factors of variation which can be recovered by unsupervised learning algorithms. In this paper, we provide a sober look at recent progress in the field and challenge some common assumptions. We first theoretically show that the unsupervised learning of disentangled representations is fundamentally impossible without inductive biases on both the models and the data. Then, we train over 14000\r\n models covering most prominent methods and evaluation metrics in a reproducible large-scale experimental study on eight data sets. We observe that while the different methods successfully enforce properties “encouraged” by the corresponding losses, well-disentangled models seemingly cannot be identified without supervision. Furthermore, different evaluation metrics do not always agree on what should be considered “disentangled” and exhibit systematic differences in the estimation. Finally, increased disentanglement does not seem to necessarily lead to a decreased sample complexity of learning for downstream tasks. Our results suggest that future work on disentanglement learning should be explicit about the role of inductive biases and (implicit) supervision, investigate concrete benefits of enforcing disentanglement of the learned representations, and consider a reproducible experimental setup covering several data sets."}],"type":"journal_article","extern":"1","citation":{"mla":"Locatello, Francesco, et al. “A Sober Look at the Unsupervised Learning of Disentangled Representations and Their Evaluation.” Journal of Machine Learning Research, vol. 21, 209, MIT Press, 2020.","apa":"Locatello, F., Bauer, S., Lucic, M., Rätsch, G., Gelly, S., Schölkopf, B., & Bachem, O. (2020). A sober look at the unsupervised learning of disentangled representations and their evaluation. Journal of Machine Learning Research. MIT Press.","chicago":"Locatello, Francesco, Stefan Bauer, Mario Lucic, Gunnar Rätsch, Sylvain Gelly, Bernhard Schölkopf, and Olivier Bachem. “A Sober Look at the Unsupervised Learning of Disentangled Representations and Their Evaluation.” Journal of Machine Learning Research. MIT Press, 2020.","ama":"Locatello F, Bauer S, Lucic M, et al. A sober look at the unsupervised learning of disentangled representations and their evaluation. Journal of Machine Learning Research. 2020;21.","short":"F. Locatello, S. Bauer, M. Lucic, G. Rätsch, S. Gelly, B. Schölkopf, O. Bachem, Journal of Machine Learning Research 21 (2020).","ista":"Locatello F, Bauer S, Lucic M, Rätsch G, Gelly S, Schölkopf B, Bachem O. 2020. A sober look at the unsupervised learning of disentangled representations and their evaluation. Journal of Machine Learning Research. 21, 209.","ieee":"F. Locatello et al., “A sober look at the unsupervised learning of disentangled representations and their evaluation,” Journal of Machine Learning Research, vol. 21. MIT Press, 2020."},"quality_controlled":"1","_id":"14195","department":[{"_id":"FrLo"}],"article_processing_charge":"No","article_type":"original","language":[{"iso":"eng"}],"publisher":"MIT Press","has_accepted_license":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"last_name":"Locatello","orcid":"0000-0002-4850-0683","first_name":"Francesco","id":"26cfd52f-2483-11ee-8040-88983bcc06d4","full_name":"Locatello, Francesco"},{"full_name":"Bauer, Stefan","last_name":"Bauer","first_name":"Stefan"},{"full_name":"Lucic, Mario","last_name":"Lucic","first_name":"Mario"},{"first_name":"Gunnar","last_name":"Rätsch","full_name":"Rätsch, Gunnar"},{"last_name":"Gelly","first_name":"Sylvain","full_name":"Gelly, Sylvain"},{"last_name":"Schölkopf","first_name":"Bernhard","full_name":"Schölkopf, Bernhard"},{"last_name":"Bachem","first_name":"Olivier","full_name":"Bachem, Olivier"}],"title":"A sober look at the unsupervised learning of disentangled representations and their evaluation","publication":"Journal of Machine Learning Research","main_file_link":[{"open_access":"1","url":"https://jmlr.csail.mit.edu/papers/v21/19-976.html"}],"oa_version":"Published Version","volume":21,"status":"public","day":"01","ddc":["000"],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"date_created":"2023-08-22T14:10:34Z","external_id":{"arxiv":["2010.14766"]},"year":"2020","article_number":"209","date_published":"2020-09-01T00:00:00Z","month":"09","intvolume":" 21","oa":1,"date_updated":"2023-09-12T09:23:56Z"},{"issue":"9","oa":1,"date_updated":"2024-09-10T12:23:52Z","acknowledgement":"This work was supported by the Institute of Science and Technology Austria (IST Austria), the European Research Council under grant agreement number 758053 (ERC StG QUNNECT) and the EU’s Horizon 2020 research and innovation programme under grant agreement number 862644 (FET Open QUARTET). S.B. acknowledges support from the Marie Skłodowska Curie\r\nfellowship number 707438 (MSC-IF SUPEREOM), DV acknowledge support from EU’s Horizon 2020 research and innovation programme under grant agreement number 732894 (FET Proactive HOT) and the Project QuaSeRT funded by the QuantERA ERANET Cofund in Quantum Technologies, and J.M.F from the Austrian Science Fund (FWF) through BeyondC (F71), a NOMIS foundation research grant, and the EU’s Horizon 2020 research and\r\ninnovation programme under grant agreement number 732894 (FET Proactive\r\nHOT).","article_number":"9266397","intvolume":" 2020","month":"09","date_published":"2020-09-21T00:00:00Z","year":"2020","conference":{"location":"Florence, Italy","end_date":"2020-09-25","start_date":"2020-09-21","name":"RadarConf: National Conference on Radar"},"external_id":{"isi":["000612224900089"],"arxiv":["1908.03058"]},"status":"public","day":"21","date_created":"2021-01-10T23:01:17Z","volume":2020,"isi":1,"oa_version":"Preprint","ec_funded":1,"related_material":{"record":[{"relation":"earlier_version","status":"public","id":"7910"}]},"doi":"10.1109/RadarConf2043947.2020.9266397","main_file_link":[{"url":"https://arxiv.org/abs/1908.03058","open_access":"1"}],"publication":"IEEE National Radar Conference - Proceedings","author":[{"full_name":"Barzanjeh, Shabir","last_name":"Barzanjeh","orcid":"0000-0003-0415-1423","id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87","first_name":"Shabir"},{"full_name":"Pirandola, Stefano","first_name":"Stefano","last_name":"Pirandola"},{"full_name":"Vitali, David","first_name":"David","last_name":"Vitali"},{"full_name":"Fink, Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M"}],"title":"Microwave quantum illumination with a digital phase-conjugated receiver","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publisher":"IEEE","language":[{"iso":"eng"}],"department":[{"_id":"JoFi"}],"article_processing_charge":"No","quality_controlled":"1","_id":"9001","type":"conference","scopus_import":"1","abstract":[{"lang":"eng","text":"Quantum illumination is a sensing technique that employs entangled signal-idler beams to improve the detection efficiency of low-reflectivity objects in environments with large thermal noise. The advantage over classical strategies is evident at low signal brightness, a feature which could make the protocol an ideal prototype for non-invasive scanning or low-power short-range radar. Here we experimentally investigate the concept of quantum illumination at microwave frequencies, by generating entangled fields using a Josephson parametric converter which are then amplified to illuminate a room-temperature object at a distance of 1 meter. Starting from experimental data, we simulate the case of perfect idler photon number detection, which results in a quantum advantage compared to the relative classical benchmark. Our results highlight the opportunities and challenges on the way towards a first room-temperature application of microwave quantum circuits."}],"arxiv":1,"publication_identifier":{"issn":["1097-5659"],"isbn":["9781728189420"]},"citation":{"apa":"Barzanjeh, S., Pirandola, S., Vitali, D., & Fink, J. M. (2020). Microwave quantum illumination with a digital phase-conjugated receiver. In IEEE National Radar Conference - Proceedings (Vol. 2020). Florence, Italy: IEEE. https://doi.org/10.1109/RadarConf2043947.2020.9266397","mla":"Barzanjeh, Shabir, et al. “Microwave Quantum Illumination with a Digital Phase-Conjugated Receiver.” IEEE National Radar Conference - Proceedings, vol. 2020, no. 9, 9266397, IEEE, 2020, doi:10.1109/RadarConf2043947.2020.9266397.","ama":"Barzanjeh S, Pirandola S, Vitali D, Fink JM. Microwave quantum illumination with a digital phase-conjugated receiver. In: IEEE National Radar Conference - Proceedings. Vol 2020. IEEE; 2020. doi:10.1109/RadarConf2043947.2020.9266397","ieee":"S. Barzanjeh, S. Pirandola, D. Vitali, and J. M. Fink, “Microwave quantum illumination with a digital phase-conjugated receiver,” in IEEE National Radar Conference - Proceedings, Florence, Italy, 2020, vol. 2020, no. 9.","short":"S. Barzanjeh, S. Pirandola, D. Vitali, J.M. Fink, in:, IEEE National Radar Conference - Proceedings, IEEE, 2020.","ista":"Barzanjeh S, Pirandola S, Vitali D, Fink JM. 2020. Microwave quantum illumination with a digital phase-conjugated receiver. IEEE National Radar Conference - Proceedings. RadarConf: National Conference on Radar vol. 2020, 9266397.","chicago":"Barzanjeh, Shabir, Stefano Pirandola, David Vitali, and Johannes M Fink. “Microwave Quantum Illumination with a Digital Phase-Conjugated Receiver.” In IEEE National Radar Conference - Proceedings, Vol. 2020. IEEE, 2020. https://doi.org/10.1109/RadarConf2043947.2020.9266397."},"publication_status":"published","project":[{"grant_number":"758053","call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425","name":"A Fiber Optic Transceiver for Superconducting Qubits"},{"_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","name":"Quantum readout techniques and technologies","grant_number":"862644","call_identifier":"H2020"},{"name":"Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination with cavity Optomechanics SUPEREOM","_id":"258047B6-B435-11E9-9278-68D0E5697425","grant_number":"707438","call_identifier":"H2020"},{"name":"Hybrid Optomechanical Technologies","_id":"257EB838-B435-11E9-9278-68D0E5697425","grant_number":"732894","call_identifier":"H2020"}]},{"article_type":"original","language":[{"iso":"eng"}],"department":[{"_id":"TiBr"}],"article_processing_charge":"No","author":[{"full_name":"Browning, Timothy D","orcid":"0000-0002-8314-0177","last_name":"Browning","id":"35827D50-F248-11E8-B48F-1D18A9856A87","first_name":"Timothy D"},{"full_name":"Sawin, Will","first_name":"Will","last_name":"Sawin"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","title":"Free rational points on smooth hypersurfaces","publisher":"European Mathematical Society","publication_status":"published","quality_controlled":"1","_id":"9007","arxiv":1,"scopus_import":"1","abstract":[{"text":"Motivated by a recent question of Peyre, we apply the Hardy–Littlewood circle method to count “sufficiently free” rational points of bounded height on arbitrary smooth projective hypersurfaces of low degree that are defined over the rationals.","lang":"eng"}],"type":"journal_article","citation":{"ista":"Browning TD, Sawin W. 2020. Free rational points on smooth hypersurfaces. Commentarii Mathematici Helvetici. 95(4), 635–659.","short":"T.D. Browning, W. Sawin, Commentarii Mathematici Helvetici 95 (2020) 635–659.","ieee":"T. D. Browning and W. Sawin, “Free rational points on smooth hypersurfaces,” Commentarii Mathematici Helvetici, vol. 95, no. 4. European Mathematical Society, pp. 635–659, 2020.","ama":"Browning TD, Sawin W. Free rational points on smooth hypersurfaces. Commentarii Mathematici Helvetici. 2020;95(4):635-659. doi:10.4171/CMH/499","chicago":"Browning, Timothy D, and Will Sawin. “Free Rational Points on Smooth Hypersurfaces.” Commentarii Mathematici Helvetici. European Mathematical Society, 2020. https://doi.org/10.4171/CMH/499.","apa":"Browning, T. D., & Sawin, W. (2020). Free rational points on smooth hypersurfaces. Commentarii Mathematici Helvetici. European Mathematical Society. https://doi.org/10.4171/CMH/499","mla":"Browning, Timothy D., and Will Sawin. “Free Rational Points on Smooth Hypersurfaces.” Commentarii Mathematici Helvetici, vol. 95, no. 4, European Mathematical Society, 2020, pp. 635–59, doi:10.4171/CMH/499."},"publication_identifier":{"issn":["00102571"],"eissn":["14208946"]},"year":"2020","external_id":{"isi":["000596833300001"],"arxiv":["1906.08463"]},"page":"635-659","oa":1,"issue":"4","date_updated":"2023-08-24T11:11:36Z","date_published":"2020-12-07T00:00:00Z","month":"12","intvolume":" 95","oa_version":"Preprint","isi":1,"publication":"Commentarii Mathematici Helvetici","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1906.08463"}],"doi":"10.4171/CMH/499","status":"public","day":"07","date_created":"2021-01-17T23:01:11Z","volume":95},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"full_name":"Kokoris Kogias, Eleftherios","first_name":"Eleftherios","id":"f5983044-d7ef-11ea-ac6d-fd1430a26d30","last_name":"Kokoris Kogias"},{"full_name":"Alp, Enis Ceyhun","last_name":"Alp","first_name":"Enis Ceyhun"},{"full_name":"Gasser, Linus","first_name":"Linus","last_name":"Gasser"},{"full_name":"Jovanovic, Philipp","last_name":"Jovanovic","first_name":"Philipp"},{"full_name":"Syta, Ewa","first_name":"Ewa","last_name":"Syta"},{"full_name":"Ford, Bryan","first_name":"Bryan","last_name":"Ford"}],"title":"CALYPSO: Private data management for decentralized ledgers","publisher":"Association for Computing Machinery","article_type":"original","language":[{"iso":"eng"}],"department":[{"_id":"ElKo"}],"article_processing_charge":"No","quality_controlled":"1","_id":"9011","abstract":[{"text":"Distributed ledgers provide high availability and integrity, making them a key enabler for practical and secure computation of distributed workloads among mutually distrustful parties. Many practical applications also require strong confidentiality, however. This work enhances permissioned and permissionless blockchains with the ability to manage confidential data without forfeiting availability or decentralization. The proposed Calypso architecture addresses two orthogonal challenges confronting modern distributed ledgers: (a) enabling the auditable management of secrets and (b) protecting distributed computations against arbitrage attacks when their results depend on the ordering and secrecy of inputs.\r\n\r\nCalypso introduces on-chain secrets, a novel abstraction that enforces atomic deposition of an auditable trace whenever users access confidential data. Calypso provides user-controlled consent management that ensures revocation atomicity and accountable anonymity. To enable permissionless deployment, we introduce an incentive scheme and provide users with the option to select their preferred trustees. We evaluated our Calypso prototype with a confidential document-sharing application and a decentralized lottery. Our benchmarks show that transaction-processing latency increases linearly in terms of security (number of trustees) and is in the range of 0.2 to 8 seconds for 16 to 128 trustees.","lang":"eng"}],"scopus_import":"1","type":"journal_article","citation":{"chicago":"Kokoris Kogias, Eleftherios, Enis Ceyhun Alp, Linus Gasser, Philipp Jovanovic, Ewa Syta, and Bryan Ford. “CALYPSO: Private Data Management for Decentralized Ledgers.” Proceedings of the VLDB Endowment. Association for Computing Machinery, 2020. https://doi.org/10.14778/3436905.3436917.","short":"E. Kokoris Kogias, E.C. Alp, L. Gasser, P. Jovanovic, E. Syta, B. Ford, Proceedings of the VLDB Endowment 14 (2020) 586–599.","ieee":"E. Kokoris Kogias, E. C. Alp, L. Gasser, P. Jovanovic, E. Syta, and B. Ford, “CALYPSO: Private data management for decentralized ledgers,” Proceedings of the VLDB Endowment, vol. 14, no. 4. Association for Computing Machinery, pp. 586–599, 2020.","ista":"Kokoris Kogias E, Alp EC, Gasser L, Jovanovic P, Syta E, Ford B. 2020. CALYPSO: Private data management for decentralized ledgers. Proceedings of the VLDB Endowment. 14(4), 586–599.","ama":"Kokoris Kogias E, Alp EC, Gasser L, Jovanovic P, Syta E, Ford B. CALYPSO: Private data management for decentralized ledgers. Proceedings of the VLDB Endowment. 2020;14(4):586-599. doi:10.14778/3436905.3436917","mla":"Kokoris Kogias, Eleftherios, et al. “CALYPSO: Private Data Management for Decentralized Ledgers.” Proceedings of the VLDB Endowment, vol. 14, no. 4, Association for Computing Machinery, 2020, pp. 586–99, doi:10.14778/3436905.3436917.","apa":"Kokoris Kogias, E., Alp, E. C., Gasser, L., Jovanovic, P., Syta, E., & Ford, B. (2020). CALYPSO: Private data management for decentralized ledgers. Proceedings of the VLDB Endowment. Association for Computing Machinery. https://doi.org/10.14778/3436905.3436917"},"publication_identifier":{"eissn":["2150-8097"]},"publication_status":"published","oa":1,"issue":"4","date_updated":"2023-08-24T13:57:13Z","acknowledgement":"We thank Nicolas Gailly, Vincent Graf, Jean-Pierre Hubaux, Wouter Lueks, Massimo Marelli, Carmela Troncoso, Juan-Ramón Troncoso Pastoriza, Frédéric Pont, and Sandra Siby for their valuable feedback. This project was supported in part by the ETH domain under PHRT grant #2017−201, and by the AXA Research Fund, Byzgen, DFINITY, and the Swiss Data Science Center (SDSC).","date_published":"2020-12-01T00:00:00Z","month":"12","intvolume":" 14","year":"2020","license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","page":"586-599","external_id":{"isi":["000658495400012"]},"day":"01","status":"public","date_created":"2021-01-17T23:01:13Z","tmp":{"short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)"},"volume":14,"oa_version":"Published Version","isi":1,"publication":"Proceedings of the VLDB Endowment","doi":"10.14778/3436905.3436917","main_file_link":[{"open_access":"1","url":"https://dl.acm.org/doi/10.14778/3436905.3436917"}]},{"citation":{"chicago":"Fischer, Julian L, Tim Laux, and Theresa M. Simon. “Convergence Rates of the Allen-Cahn Equation to Mean Curvature Flow: A Short Proof Based on Relative Entropies.” SIAM Journal on Mathematical Analysis. Society for Industrial and Applied Mathematics, 2020. https://doi.org/10.1137/20M1322182.","ama":"Fischer JL, Laux T, Simon TM. Convergence rates of the Allen-Cahn equation to mean curvature flow: A short proof based on relative entropies. SIAM Journal on Mathematical Analysis. 2020;52(6):6222-6233. doi:10.1137/20M1322182","ieee":"J. L. Fischer, T. Laux, and T. M. Simon, “Convergence rates of the Allen-Cahn equation to mean curvature flow: A short proof based on relative entropies,” SIAM Journal on Mathematical Analysis, vol. 52, no. 6. Society for Industrial and Applied Mathematics, pp. 6222–6233, 2020.","short":"J.L. Fischer, T. Laux, T.M. Simon, SIAM Journal on Mathematical Analysis 52 (2020) 6222–6233.","ista":"Fischer JL, Laux T, Simon TM. 2020. Convergence rates of the Allen-Cahn equation to mean curvature flow: A short proof based on relative entropies. SIAM Journal on Mathematical Analysis. 52(6), 6222–6233.","mla":"Fischer, Julian L., et al. “Convergence Rates of the Allen-Cahn Equation to Mean Curvature Flow: A Short Proof Based on Relative Entropies.” SIAM Journal on Mathematical Analysis, vol. 52, no. 6, Society for Industrial and Applied Mathematics, 2020, pp. 6222–33, doi:10.1137/20M1322182.","apa":"Fischer, J. L., Laux, T., & Simon, T. M. (2020). Convergence rates of the Allen-Cahn equation to mean curvature flow: A short proof based on relative entropies. SIAM Journal on Mathematical Analysis. Society for Industrial and Applied Mathematics. https://doi.org/10.1137/20M1322182"},"publication_identifier":{"issn":["00361410"],"eissn":["10957154"]},"scopus_import":"1","abstract":[{"text":"We give a short and self-contained proof for rates of convergence of the Allen--Cahn equation towards mean curvature flow, assuming that a classical (smooth) solution to the latter exists and starting from well-prepared initial data. Our approach is based on a relative entropy technique. In particular, it does not require a stability analysis for the linearized Allen--Cahn operator. As our analysis also does not rely on the comparison principle, we expect it to be applicable to more complex equations and systems.","lang":"eng"}],"type":"journal_article","file_date_updated":"2021-01-25T07:48:39Z","_id":"9039","quality_controlled":"1","project":[{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program","grant_number":"665385","call_identifier":"H2020"}],"publication_status":"published","has_accepted_license":"1","publisher":"Society for Industrial and Applied Mathematics","title":"Convergence rates of the Allen-Cahn equation to mean curvature flow: A short proof based on relative entropies","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"id":"2C12A0B0-F248-11E8-B48F-1D18A9856A87","first_name":"Julian L","orcid":"0000-0002-0479-558X","last_name":"Fischer","full_name":"Fischer, Julian L"},{"last_name":"Laux","first_name":"Tim","full_name":"Laux, Tim"},{"first_name":"Theresa M.","last_name":"Simon","full_name":"Simon, Theresa M."}],"file":[{"access_level":"open_access","relation":"main_file","checksum":"21aa1cf4c30a86a00cae15a984819b5d","file_size":310655,"creator":"dernst","file_id":"9041","content_type":"application/pdf","date_created":"2021-01-25T07:48:39Z","date_updated":"2021-01-25T07:48:39Z","file_name":"2020_SIAM_Fischer.pdf","success":1}],"article_processing_charge":"No","department":[{"_id":"JuFi"}],"language":[{"iso":"eng"}],"article_type":"original","volume":52,"date_created":"2021-01-24T23:01:09Z","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"ddc":["510"],"day":"15","status":"public","publication":"SIAM Journal on Mathematical Analysis","doi":"10.1137/20M1322182","oa_version":"Published Version","ec_funded":1,"isi":1,"date_published":"2020-12-15T00:00:00Z","intvolume":" 52","month":"12","acknowledgement":"This work was supported by the European Union's Horizon 2020 Research and Innovation\r\nProgramme under Marie Sklodowska-Curie grant agreement 665385 and by the Deutsche\r\nForschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy, EXC-2047/1--390685813.","date_updated":"2023-08-24T11:15:16Z","oa":1,"issue":"6","page":"6222-6233","external_id":{"isi":["000600695200027"]},"year":"2020"},{"publisher":"TU Wien Academic Press","has_accepted_license":"1","file":[{"success":1,"file_name":"2020_FMCAD_Alamdari.pdf","date_updated":"2021-02-09T09:39:02Z","date_created":"2021-02-09T09:39:02Z","content_type":"application/pdf","file_id":"9109","file_size":990999,"creator":"dernst","relation":"main_file","checksum":"d616d549a0ade78606b16f8a9540820f","access_level":"open_access"}],"title":"Formal methods with a touch of magic","author":[{"last_name":"Alamdari","first_name":"Par Alizadeh","full_name":"Alamdari, Par Alizadeh"},{"full_name":"Avni, Guy","last_name":"Avni","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy"},{"orcid":"0000-0002-2985-7724","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"full_name":"Lukina, Anna","id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425","first_name":"Anna","last_name":"Lukina"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"ToHe"}],"article_processing_charge":"No","language":[{"iso":"eng"}],"type":"conference","file_date_updated":"2021-02-09T09:39:02Z","abstract":[{"lang":"eng","text":"Machine learning and formal methods have complimentary benefits and drawbacks. In this work, we address the controller-design problem with a combination of techniques from both fields. The use of black-box neural networks in deep reinforcement learning (deep RL) poses a challenge for such a combination. Instead of reasoning formally about the output of deep RL, which we call the wizard, we extract from it a decision-tree based model, which we refer to as the magic book. Using the extracted model as an intermediary, we are able to handle problems that are infeasible for either deep RL or formal methods by themselves. First, we suggest, for the first time, a synthesis procedure that is based on a magic book. We synthesize a stand-alone correct-by-design controller that enjoys the favorable performance of RL. Second, we incorporate a magic book in a bounded model checking (BMC) procedure. BMC allows us to find numerous traces of the plant under the control of the wizard, which a user can use to increase the trustworthiness of the wizard and direct further training."}],"scopus_import":"1","publication_identifier":{"eissn":["2708-7824"],"isbn":["9783854480426"]},"citation":{"mla":"Alamdari, Par Alizadeh, et al. “Formal Methods with a Touch of Magic.” Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, TU Wien Academic Press, 2020, pp. 138–47, doi:10.34727/2020/isbn.978-3-85448-042-6_21.","apa":"Alamdari, P. A., Avni, G., Henzinger, T. A., & Lukina, A. (2020). Formal methods with a touch of magic. In Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design (pp. 138–147). Online Conference: TU Wien Academic Press. https://doi.org/10.34727/2020/isbn.978-3-85448-042-6_21","chicago":"Alamdari, Par Alizadeh, Guy Avni, Thomas A Henzinger, and Anna Lukina. “Formal Methods with a Touch of Magic.” In Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, 138–47. TU Wien Academic Press, 2020. https://doi.org/10.34727/2020/isbn.978-3-85448-042-6_21.","short":"P.A. Alamdari, G. Avni, T.A. Henzinger, A. Lukina, in:, Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, TU Wien Academic Press, 2020, pp. 138–147.","ista":"Alamdari PA, Avni G, Henzinger TA, Lukina A. 2020. Formal methods with a touch of magic. Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design. FMCAD: Formal Methods in Computer-Aided Design, 138–147.","ieee":"P. A. Alamdari, G. Avni, T. A. Henzinger, and A. Lukina, “Formal methods with a touch of magic,” in Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, Online Conference, 2020, pp. 138–147.","ama":"Alamdari PA, Avni G, Henzinger TA, Lukina A. Formal methods with a touch of magic. In: Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design. TU Wien Academic Press; 2020:138-147. doi:10.34727/2020/isbn.978-3-85448-042-6_21"},"quality_controlled":"1","_id":"9040","publication_status":"published","project":[{"name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF"}],"acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","month":"09","date_published":"2020-09-21T00:00:00Z","oa":1,"date_updated":"2021-02-09T09:39:59Z","conference":{"location":"Online Conference","name":" FMCAD: Formal Methods in Computer-Aided Design","start_date":"2020-09-21","end_date":"2020-09-24"},"page":"138-147","year":"2020","day":"21","status":"public","ddc":["000"],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"date_created":"2021-01-24T23:01:10Z","doi":"10.34727/2020/isbn.978-3-85448-042-6_21","publication":"Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design","oa_version":"Published Version"},{"intvolume":" 10","month":"07","date_published":"2020-07-29T00:00:00Z","date_updated":"2021-02-04T07:16:37Z","keyword":["General Chemistry","General Chemical Engineering"],"issue":"47","oa":1,"page":"28383-28389","year":"2020","volume":10,"date_created":"2021-02-02T15:51:23Z","day":"29","status":"public","doi":"10.1039/d0ra05394e","main_file_link":[{"url":"https://doi.org/10.1039/d0ra05394e","open_access":"1"}],"publication":"RSC Advances","oa_version":"Published Version","publisher":"Royal Society of Chemistry","title":"Size-dependent magnetic and magnetothermal properties of gadolinium silicide nanoparticles","author":[{"last_name":"Nauman","orcid":"0000-0002-2111-4846","id":"32c21954-2022-11eb-9d5f-af9f93c24e71","first_name":"Muhammad","full_name":"Nauman, Muhammad"},{"full_name":"Alnasir, Muhammad Hisham","last_name":"Alnasir","first_name":"Muhammad Hisham"},{"full_name":"Hamayun, Muhammad Asif","first_name":"Muhammad Asif","last_name":"Hamayun"},{"first_name":"YiXu","last_name":"Wang","full_name":"Wang, YiXu"},{"full_name":"Shatruk, Michael","last_name":"Shatruk","first_name":"Michael"},{"first_name":"Sadia","last_name":"Manzoor","full_name":"Manzoor, Sadia"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","language":[{"iso":"eng"}],"article_type":"original","citation":{"apa":"Nauman, M., Alnasir, M. H., Hamayun, M. A., Wang, Y., Shatruk, M., & Manzoor, S. (2020). Size-dependent magnetic and magnetothermal properties of gadolinium silicide nanoparticles. RSC Advances. Royal Society of Chemistry. https://doi.org/10.1039/d0ra05394e","mla":"Nauman, Muhammad, et al. “Size-Dependent Magnetic and Magnetothermal Properties of Gadolinium Silicide Nanoparticles.” RSC Advances, vol. 10, no. 47, Royal Society of Chemistry, 2020, pp. 28383–89, doi:10.1039/d0ra05394e.","ieee":"M. Nauman, M. H. Alnasir, M. A. Hamayun, Y. Wang, M. Shatruk, and S. Manzoor, “Size-dependent magnetic and magnetothermal properties of gadolinium silicide nanoparticles,” RSC Advances, vol. 10, no. 47. Royal Society of Chemistry, pp. 28383–28389, 2020.","ista":"Nauman M, Alnasir MH, Hamayun MA, Wang Y, Shatruk M, Manzoor S. 2020. Size-dependent magnetic and magnetothermal properties of gadolinium silicide nanoparticles. RSC Advances. 10(47), 28383–28389.","short":"M. Nauman, M.H. Alnasir, M.A. Hamayun, Y. Wang, M. Shatruk, S. Manzoor, RSC Advances 10 (2020) 28383–28389.","ama":"Nauman M, Alnasir MH, Hamayun MA, Wang Y, Shatruk M, Manzoor S. Size-dependent magnetic and magnetothermal properties of gadolinium silicide nanoparticles. RSC Advances. 2020;10(47):28383-28389. doi:10.1039/d0ra05394e","chicago":"Nauman, Muhammad, Muhammad Hisham Alnasir, Muhammad Asif Hamayun, YiXu Wang, Michael Shatruk, and Sadia Manzoor. “Size-Dependent Magnetic and Magnetothermal Properties of Gadolinium Silicide Nanoparticles.” RSC Advances. Royal Society of Chemistry, 2020. https://doi.org/10.1039/d0ra05394e."},"extern":"1","publication_identifier":{"issn":["2046-2069"]},"type":"journal_article","abstract":[{"text":"Gadolinium silicide (Gd5Si4) nanoparticles are an interesting class of materials due to their high magnetization, low Curie temperature, low toxicity in biological environments and their multifunctional properties. We report the magnetic and magnetothermal properties of gadolinium silicide (Gd5Si4) nanoparticles prepared by surfactant-assisted ball milling of arc melted bulk ingots of the compound. Using different milling times and speeds, a wide range of crystallite sizes (13–43 nm) could be produced and a reduction in Curie temperature (TC) from 340 K to 317 K was achieved, making these nanoparticles suitable for self-controlled magnetic hyperthermia applications. The magnetothermal effect was measured in applied AC magnetic fields of amplitude 164–239 Oe and frequencies 163–519 kHz. All particles showed magnetic heating with a strong dependence of the specific absorption rate (SAR) on the average crystallite size. The highest SAR of 3.7 W g−1 was measured for 43 nm sized nanoparticles of Gd5Si4. The high SAR and low TC, (within the therapeutic range for magnetothermal therapy) makes the Gd5Si4 behave like self-regulating heat switches that would be suitable for self-controlled magnetic hyperthermia applications after biocompatibility and cytotoxicity tests.","lang":"eng"}],"_id":"9067","quality_controlled":"1","publication_status":"published"},{"title":"Lagrangian reachtubes: The next generation","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Gruenbacher, Sophie","last_name":"Gruenbacher","first_name":"Sophie"},{"last_name":"Cyranka","first_name":"Jacek","full_name":"Cyranka, Jacek"},{"full_name":"Lechner, Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","last_name":"Lechner"},{"full_name":"Islam, Md Ariful","first_name":"Md Ariful","last_name":"Islam"},{"full_name":"Smolka, Scott A.","first_name":"Scott A.","last_name":"Smolka"},{"last_name":"Grosu","first_name":"Radu","full_name":"Grosu, Radu"}],"publisher":"IEEE","language":[{"iso":"eng"}],"department":[{"_id":"ToHe"}],"article_processing_charge":"No","quality_controlled":"1","_id":"9103","type":"conference","abstract":[{"text":"We introduce LRT-NG, a set of techniques and an associated toolset that computes a reachtube (an over-approximation of the set of reachable states over a given time horizon) of a nonlinear dynamical system. LRT-NG significantly advances the state-of-the-art Langrangian Reachability and its associated tool LRT. From a theoretical perspective, LRT-NG is superior to LRT in three ways. First, it uses for the first time an analytically computed metric for the propagated ball which is proven to minimize the ball’s volume. We emphasize that the metric computation is the centerpiece of all bloating-based techniques. Secondly, it computes the next reachset as the intersection of two balls: one based on the Cartesian metric and the other on the new metric. While the two metrics were previously considered opposing approaches, their joint use considerably tightens the reachtubes. Thirdly, it avoids the \"wrapping effect\" associated with the validated integration of the center of the reachset, by optimally absorbing the interval approximation in the radius of the next ball. From a tool-development perspective, LRT-NG is superior to LRT in two ways. First, it is a standalone tool that no longer relies on CAPD. This required the implementation of the Lohner method and a Runge-Kutta time-propagation method. Secondly, it has an improved interface, allowing the input model and initial conditions to be provided as external input files. Our experiments on a comprehensive set of benchmarks, including two Neural ODEs, demonstrates LRT-NG’s superior performance compared to LRT, CAPD, and Flow*.","lang":"eng"}],"arxiv":1,"scopus_import":"1","citation":{"apa":"Gruenbacher, S., Cyranka, J., Lechner, M., Islam, M. A., Smolka, S. A., & Grosu, R. (2020). Lagrangian reachtubes: The next generation. In Proceedings of the 59th IEEE Conference on Decision and Control (Vol. 2020, pp. 1556–1563). Jeju Islang, Korea (South): IEEE. https://doi.org/10.1109/CDC42340.2020.9304042","mla":"Gruenbacher, Sophie, et al. “Lagrangian Reachtubes: The next Generation.” Proceedings of the 59th IEEE Conference on Decision and Control, vol. 2020, IEEE, 2020, pp. 1556–63, doi:10.1109/CDC42340.2020.9304042.","ama":"Gruenbacher S, Cyranka J, Lechner M, Islam MA, Smolka SA, Grosu R. Lagrangian reachtubes: The next generation. In: Proceedings of the 59th IEEE Conference on Decision and Control. Vol 2020. IEEE; 2020:1556-1563. doi:10.1109/CDC42340.2020.9304042","ieee":"S. Gruenbacher, J. Cyranka, M. Lechner, M. A. Islam, S. A. Smolka, and R. Grosu, “Lagrangian reachtubes: The next generation,” in Proceedings of the 59th IEEE Conference on Decision and Control, Jeju Islang, Korea (South), 2020, vol. 2020, pp. 1556–1563.","short":"S. Gruenbacher, J. Cyranka, M. Lechner, M.A. Islam, S.A. Smolka, R. Grosu, in:, Proceedings of the 59th IEEE Conference on Decision and Control, IEEE, 2020, pp. 1556–1563.","ista":"Gruenbacher S, Cyranka J, Lechner M, Islam MA, Smolka SA, Grosu R. 2020. Lagrangian reachtubes: The next generation. Proceedings of the 59th IEEE Conference on Decision and Control. CDC: Conference on Decision and Control vol. 2020, 1556–1563.","chicago":"Gruenbacher, Sophie, Jacek Cyranka, Mathias Lechner, Md Ariful Islam, Scott A. Smolka, and Radu Grosu. “Lagrangian Reachtubes: The next Generation.” In Proceedings of the 59th IEEE Conference on Decision and Control, 2020:1556–63. IEEE, 2020. https://doi.org/10.1109/CDC42340.2020.9304042."},"publication_identifier":{"isbn":["9781728174471"],"issn":["07431546"]},"publication_status":"published","project":[{"call_identifier":"FWF","grant_number":"Z211","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"oa":1,"date_updated":"2021-02-09T09:20:58Z","acknowledgement":"The authors would like to thank Ramin Hasani and Guillaume Berger for intellectual discussions about the research which lead to the generation of new ideas. ML was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). Smolka’s research was supported by NSF grants CPS-1446832 and CCF-1918225. Gruenbacher is funded by FWF project W1255-N23. JC was partially supported by NAWA Polish Returns grant\r\nPPN/PPO/2018/1/00029.\r\n","month":"12","intvolume":" 2020","date_published":"2020-12-14T00:00:00Z","year":"2020","conference":{"end_date":"2020-12-18","start_date":"2020-12-14","name":"CDC: Conference on Decision and Control","location":"Jeju Islang, Korea (South)"},"external_id":{"arxiv":["2012.07458"]},"page":"1556-1563","status":"public","day":"14","date_created":"2021-02-07T23:01:14Z","volume":2020,"oa_version":"Preprint","doi":"10.1109/CDC42340.2020.9304042","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2012.07458"}],"publication":"Proceedings of the 59th IEEE Conference on Decision and Control"}]