Search Results for author: Idan Attias

Found 11 papers, 1 papers with code

Online Learning and Solving Infinite Games with an ERM Oracle

no code implementations4 Jul 2023 Angelos Assos, Idan Attias, Yuval Dagan, Constantinos Daskalakis, Maxwell Fishelson

In this setting, we provide learning algorithms that only rely on best response oracles and converge to approximate-minimax equilibria in two-player zero-sum games and approximate coarse correlated equilibria in multi-player general-sum games, as long as the game has a bounded fat-threshold dimension.

Binary Classification

Adversarially Robust PAC Learnability of Real-Valued Functions

no code implementations26 Jun 2022 Idan Attias, Steve Hanneke

We study robustness to test-time adversarial attacks in the regression setting with $\ell_p$ losses and arbitrary perturbation sets.

regression

A Characterization of Semi-Supervised Adversarially-Robust PAC Learnability

no code implementations11 Feb 2022 Idan Attias, Steve Hanneke, Yishay Mansour

This shows that there is a significant benefit in semi-supervised robust learning even in the worst-case distribution-free model, and establishes a gap between the supervised and semi-supervised label complexities which is known not to hold in standard non-robust PAC learning.

PAC learning

Fat-Shattering Dimension of $k$-fold Aggregations

no code implementations10 Oct 2021 Idan Attias, Aryeh Kontorovich

We provide estimates on the fat-shattering dimension of aggregation rules of real-valued function classes.

A Framework for Adversarial Streaming via Differential Privacy and Difference Estimators

no code implementations30 Jul 2021 Idan Attias, Edith Cohen, Moshe Shechner, Uri Stemmer

Classical streaming algorithms operate under the (not always reasonable) assumption that the input stream is fixed in advance.

Domain Invariant Adversarial Learning

1 code implementation1 Apr 2021 Matan Levi, Idan Attias, Aryeh Kontorovich

We present a new adversarial training method, Domain Invariant Adversarial Learning (DIAL), which learns a feature representation that is both robust and domain invariant.

Prediction with Corrupted Expert Advice

no code implementations NeurIPS 2020 Idan Amir, Idan Attias, Tomer Koren, Roi Livni, Yishay Mansour

We revisit the fundamental problem of prediction with expert advice, in a setting where the environment is benign and generates losses stochastically, but the feedback observed by the learner is subject to a moderate adversarial corruption.

Improved Generalization Bounds for Adversarially Robust Learning

no code implementations4 Oct 2018 Idan Attias, Aryeh Kontorovich, Yishay Mansour

For binary classification, the algorithm of Feige et al. (2015) uses a regret minimization algorithm and an ERM oracle as a black box; we adapt it for the multiclass and regression settings.

Binary Classification General Classification +3

Agnostic Sample Compression Schemes for Regression

no code implementations3 Oct 2018 Idan Attias, Steve Hanneke, Aryeh Kontorovich, Menachem Sadigurschi

For the $\ell_2$ loss, does every function class admit an approximate compression scheme of polynomial size in the fat-shattering dimension?

Open-Ended Question Answering regression

Cannot find the paper you are looking for? You can Submit a new open access paper.