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Stephen Giguere

4 accepted papers

2022

Fairness Guarantees under Demographic Shift

ICLR 2022poster

Recent studies have demonstrated that using machine learning for social applications can lead to injustice in the form of racist, sexist, and otherwise unfair and discriminatory outcomes. To address this challenge, recent machine learning algorithms have been designed to limit the likelihood such un…

Cited by 64SourcePDFScholar
2021

Distributional Depth-Based Estimation of Object Articulation Models

CoRL 2021poster

We propose a method that efficiently learns distributions over articulation models directly from depth images without the need to know articulation model categories a priori. By contrast, existing methods that learn articulation models from raw observations require objects to be textured, and most o…

Cited by 26SourcecodeScholar
2021

SOPE: Spectrum of Off-Policy Estimators

NeurIPS 2021poster

Many sequential decision making problems are high-stakes and require off-policy evaluation (OPE) of a new policy using historical data collected using some other policy. One of the most common OPE techniques that provides unbiased estimates is trajectory based importance sampling (IS). However, due…

2019

Offline Contextual Bandits with High Probability Fairness Guarantees

NeurIPS 2019poster

We present RobinHood, an offline contextual bandit algorithm designed to satisfy a broad family of fairness constraints. Our algorithm accepts multiple fairness definitions and allows users to construct their own unique fairness definitions for the problem at hand. We provide a theoretical analysis of…