Zoltán Szabó
Department of Statistics, LSE [local time]June - Aug. |
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May 6-9 |
![]() @ Representing, calibrating & leveraging prediction uncertainty from statistics to machine learning (Isaac Newton Institute), with Alessandra Menafoglio, David Ginsbourger, Florence d’Alché-Buc, Judith Rousseau, Neil Lawrence. |
Apr. 13-16 |
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Apr. 7-8 |
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Feb. - Apr. |
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Winter Term (Feb. 10) |
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Jan. 22 |
![]() [paper (arXiv)] = Nyström-based accelerated computation of kernel Stein discrepancy (KSD); convergence rate of the classical quadratic-time KSD & the Nyström KSD estimator |
Winter Term (Jan. - Apr.) |
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Nov. - Dec. |
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Nov. 27 |
![]() [paper (arXiv)] = tighter concentration of semi-explicit MMD estimation in 1d, minimax lower bound for the unbounded exponential kernel, 3 financial applications |
Sept. 27 |
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Sept. 25 |
![]() [paper, paper (arXiv)] = minimax rate for HSIC estimation on Rd |
Aug. 28 |
![]() [paper, paper (arXiv), code] = large-scale, GPU-accelerated signature kernel estimators |
June - Aug. |
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July 3 |
![]() [paper (arXiv)] = flexible policy switching framework for offline RL, balancing between long-term return maximization and the cost of switching |
July 1 |
![]() [paper (arXiv), code] = two-step procedure for dimensionality reduction in off-policy evaluation |
June 20-21 |
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June - |
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June 13 |
![]() [paper (arXiv), code] = Nyström-based accelerated computation of kernel Stein discrepancy |
June 11 |
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Mar. - Apr. |
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Mar. 13 |
![]() [paper, paper (arXiv)] = minimax rate for HSIC estimation on Rd |
Feb. - Apr. |
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Feb. 12 |
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Winter Term |
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Winter Term (Feb. 5) |
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Jan. - | Start working with Tao Ma (PhD student) |
Dec. 18 |
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Dec. 17 |
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Dec. 16 |
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Nov. 22 |
![]() [paper (arXiv), code] = large-scale, GPU-accelerated signature kernel estimators |
Nov. - Dec. |
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Sept. 22 |
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Sept. 21 |
![]() [paper (NeurIPS), paper (arXiv), spotlight, poster, code] = higher-degree generalization of MMD and kernel Lancaster interaction; applications: environmental and traffic data analysis |
Sept. - | Working with Xiaoyi Wen (visiting PhD student) |
Sept. - |
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Jun. - Aug. |
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June 26-30 |
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June 10-14 |
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June 5-6 |
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May 23 |
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May 8 |
![]() [paper, paper (UAI), supplement (UAI), paper (arXiv), code] = consistent estimation of HSIC for ≥ 2 components using the Nyström technique; applications: weather causal discovery, dependency testing of media annotations |
Mar. - Apr. |
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Mar. 2- |
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Feb. 20 |
![]() [paper (arXiv), code] = consistent estimation of HSIC for ≥ 2 components using the Nyström technique |
Jan. 31 |
![]() [paper (arXiv), code] = higher-degree generalization of MMD and HSIC; applications: environmental and traffic data analysis |
Lent Term |
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Nov. - Dec. |
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Oct. 26 |
![]() [paper, paper (JMLR), code] = hard affine SDP shape constraints in vector-valued RKHSs; applications: shape optimization, safety-critical control, robotics, econometrics |
Oct. - Dec. |
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Michaelmas Term |
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Sept. 29 |
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Sept. 21 |
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Sept. 8 |
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Sept. - Dec. | Working with Florian Kalinke (visiting PhD student) |
Sept.- |
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Sept. | Welcome to & start working with Sakina Hansen (PhD student ) and Pingfan Su (PhD student) |
July 28 |
![]() (extended and simpler proof, new application in robotics) [paper (arXiv)] = hard affine SDP shape constraints in vector-valued RKHSs; applications: shape optimization, robotics, econometrics |
Jun. - Aug. |
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June 23 |
![]() [paper (arXiv), paper (Biometrika)] |
June 14-15 |
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June 4 |
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May 26 |
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May 14 |
![]() [paper, paper (arXiv), code, presentation (video)] = functional output regression with sparsity-inducing and robust loss; applications: neuroimaging, speech analysis |
Apr. - May |
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Feb. - Apr. |
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Mar. - Apr. |
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Jan. 26 |
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Jan. 12 |
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Dec. 19 |
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Dec. 13 |
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Nov. - Dec. |
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Oct. - Dec. |
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Nov. 4 |
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Oct. 20 |
![]() [paper (arXiv)] = analytic mean embeddings, better concentration of the resulting MMD estimators, portfolio optimization |
Oct. 14 |
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Oct.- |
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Sept.- |
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Michaelmas Term |
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Sept. | Starting at LSE! |
June - Sept. |
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Aug. 31 |
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July 8 |
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July 7 |
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July 5 |
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May 20 (morning) |
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May 18-21 |
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Mar. 24 |
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Mar. - Apr. |
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Mar. - Apr. |
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Mar. 4 |
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Feb. - Mar. |
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Feb. 12 |
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Feb. 4 |
![]() [paper, paper (arXiv), demo (video), code] = emotion/style transfer with operator-valued kernels |
Jan. 6-8 |
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Jan. 6 |
![]() [paper (arXiv), paper (HAL)] = hard affine SDP shape constraints in vector-valued RKHSs; applications: shape optimization, safety-critical control, econometrics |
Dec. 15 |
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Dec. 6-12 |
![]() [paper, slides, spotlight video, code] |
Nov. - Dec. |
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Nov. 30 - Dec. 1 |
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Oct. - Nov. |
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Sept. 25 |
![]() [paper, paper (NeurIPS), paper (arXiv), paper (HAL), slides, code] = SVMs with hard affine shape constraints on derivatives; applications: joint quantile regression, economics, analysis of aircraft trajectories |
Sept.- |
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Sept. 7 |
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June - Aug. |
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July 27-31 |
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July 11-17 |
![]() [slides, talk (video)] |
July 14-15 |
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June- |
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June 11 |
![]() [paper, JMLR: paper, HAL: paper] = tight uniform guarantees for random Fourier features under mild conditions for arbitrary order derivatives |
May 27 |
![]() [arXiv: paper; HAL: paper] = SVMs with hard affine shape constraints on derivatives |
May 18 - Aug. 18 | Welcome to & start working with Bechir Trabelsi (M.Sc. intern). |
Apr. 23- |
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Apr. 6 |
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Apr. 1 |
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Mar. - Apr. |
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Feb. - Apr. |
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Feb. - Mar. |
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Mar. 5 |
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Feb. 27 |
![]() [paper] = application of shape-constrained SVMs for trajectory reconstruction from noisy GPS measurements |
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Jan. 30 |
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Jan 21 |
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Jan 9-11 |
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Dec. 29- |
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Dec. 26-30 |
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Dec 20 |
![]() [paper; HAL: paper] = fast uniform approximation of arbitrary-order kernel derivatives with random Fourier features under mild (alpha-exponential Orlicz spectrum) assumption |
Dec. 16 | HDR with distinction. |
Nov. 19 |
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Nov. - Dec. |
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Sept. 23 |
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Sept. 2-5 |
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July - Aug. |
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July 15-17 |
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July 11-13 |
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June 24-28 |
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June 19-23 |
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June 9-15 |
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May 30- |
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May 29 |
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May 28-29 |
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May 27 |
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May 17 |
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May 7 & 10 |
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Apr. 22 |
![]() [preprint on arXiv: paper] = new MMD and mean embedding estimators: with optimal sub-Gaussian rate & excessive resistance to contamination |
Apr. 16-18 |
![]() [paper-1, poster-1, paper-2, poster-2] |
Apr. 15 |
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Apr. |
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Mar. 25 - July 31 |
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Spring |
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Spring |
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Mar. - Apr. |
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Mar. 7 |
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Feb. - Mar. |
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Feb. 15 |
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Feb. 12 - Mar. 12 |
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Feb. 8 |
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Feb. 7 |
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Jan. - Feb. |
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Jan. 3-5 |
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Dec. 23 |
![]() [preprints on arXiv: paper-1, paper-2] |
Dec. 19 | I am being interviewed to the film Mind (topic: AI & Brain). |
Dec. 2-8 |
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Nov. 29, Dec. 13; Jan. 10 (2019) |
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Nov. 21 |
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Oct. - Dec. |
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Fall |
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Fall |
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Oct. 31 |
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Oct. 26 |
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Oct. 11 |
![]() [arXiv: paper, HAL: paper] = random Fourier features can be as efficient for kernel derivative approximation as for kernel values; tool: unbounded empirical processes |
Oct. |
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Sept. - Oct. |
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Sept. 17-20 |
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Sept. 10 |
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Sept. 4 |
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Aug. 30 |
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Aug. 28- |
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Aug. 2 |
![]() [paper] = characterization of when HSIC is an independence measure |
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June - Aug. |
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July 18 & 20 |
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July 10-15 |
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June 25 |
![]() [paper; arXiv: paper, HAL: paper; +details @ Aug. 2] |
June 25-29 |
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June 19 |
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June |
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June 11-15 |
![]() [abstract-1, slides-1; abstract-2, slides-2] |
June 5 |
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May 28 - June 1 |
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May. 24 |
![]() [arXiv: paper, HAL: paper; code] = learning continuum number of tasks jointly; examples: cost-sensitive classification, joint quantile regression, density level set estimation; tool: operator-valued kernels. |
May 17-20 |
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Apr. 10 |
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Apr. 3-5 |
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Apr. | Welcome to & start working with Meyer Scetbon (M.Sc. intern). |
March |
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Mar. 23 |
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Mar. 22 |
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Mar. 13-14 |
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Mar. 6 |
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Mar.- | Member of the French Statistical Society (SFdS) |
Feb. - Mar. |
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Feb. 28 |
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Feb. 26 |
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Feb. 20 |
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Feb. 14 |
![]() [arXiv: paper, HAL: paper] = consistent outlier-robust mean embedding & MMD estimation, with optimal rates. |
Feb. 13 |
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Feb. 2 |
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Jan. 24 | Interview at TWiML & AI (YouTube, SoundCloud) on our NIPS-2017 Best Paper Award is up. |
Jan. 23 |
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Jan. | Welcome to & start working with Linda Chamakh (PhD). |
Spring |
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Spring |
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Dec. 11-15 |
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Dec. 4-9 |
![]() Our submission got one of the 3 Best Paper Awards! (out of 3240 submissions) [paper, paper (NIPS website), poster, slides, talk (video), slides @ MLTrain workshop, interview at TWiML & AI (YouTube, SoundCloud), code] = adaptive linear-time nonparametric goodness-of-fit test |
Dec. 8 |
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Dec. 1 |
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Nov. - Dec. |
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Nov. 29 |
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Nov. 28 |
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Nov. 28 |
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Nov. 27 |
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Nov. 14 |
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Nov. 3 |
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Oct. - Nov. |
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Oct. 11 |
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Oct. 9 |
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Oct. | Welcome to & start working with Gaspar Massiot (postdoc), Romain Brault (postdoc), Alex Lambert (PhD student), Moussab Djerrab (PhD student). |
Sept. 27 |
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Sept. 9 |
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Sept. 4-5 |
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Sept. 4 |
![]() to appear @ NIPS-2017 , see 'Dec. 4-9'. |
Aug. 28 - Sept. 1 | ![]() |
Aug 28 |
![]() [arXiv: paper, HAL: paper] |
Aug 9 |
![]() [slides, poster; further details @ 'May 12'] |
July 27 |
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July 14-17 |
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July 3-7 |
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July 3 |
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June - July |
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June 28 |
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June 22-23 |
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June 21 |
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June 19-20 |
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June 14 |
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May - June |
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May 22 |
![]() [arXiv: paper, HAL: paper; code] = adaptive linear-time nonparametric goodness-of-fit test |
May 17 |
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May 12 |
![]() [paper, paper (ICML website), preprint on arXiv; code] accepted @ ICML-2017 = adaptive linear-time nonparametric independence test |
May 9 |
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May 4 |
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Apr. - May |
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Apr. 24 - Sept. 29 |
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Apr. 27 |
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Apr. 17-20 |
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Apr. 17 |
![]() [abstract, code] accepted @ Greek Stochastics Workshop - Model Determination |
Apr. 11 |
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March |
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Mar. 29 |
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Mar. 27 |
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Mar. 24 |
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Mar. 16 |
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Spring |
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Feb. 27 |
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Feb. 24 |
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Feb. 2 |
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Feb.- |
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Jan. 31 |
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- Jan. |
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Dec. 3-11 |
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Nov. 27 - Dec. 2 |
![]() [slides, code, Dagstuhl report] |
Nov. 22 |
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Nov. 21 |
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Nov. 18 |
![]() = several information theoretical estimators |
Oct. 18 |
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Oct. 5 |
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Fall |
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Sept. 29 |
![]() [paper, code] appeared @ JMLR = minimax optimal regression on probability distributions |
Sept. | Starting at École Polytechnique! |
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Aug. 24 |
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Aug. 12 |
![]() [paper, 3-minute spotlight video, poster, code] to appear @ NIPS-2016 (full oral paper = top 1.84%) = adaptive linear-time nonparametric two-sample test |
July 10 |
![]() [abstract, slides] presented @ Greek Stochastics Workshop on Big Data and Big Models = kernel based fast sampling from Bayesian posteriors (big data regime) |
June 29 |
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June 22 |
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June 11-16 |
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May 6 |
![]() [paper, spotlight, poster, code] accepted @ ICML-2016: Data-Efficient ML |
Apr. 25 |
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Mar. 17 |
![]() [abstract, slides, code] accepted @ ISNPS-2016 |
Mar. 16 |
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Mar. 14 |
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Mar. 9 |
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