Search Results for author: Maggie Makar

Found 9 papers, 2 papers with code

Partial identification of kernel based two sample tests with mismeasured data

no code implementations7 Aug 2023 Ron Nafshi, Maggie Makar

We show that under $\epsilon$-contamination, the typical estimate of the MMD is unreliable.

Multi-Similarity Contrastive Learning

no code implementations6 Jul 2023 Emily Mu, John Guttag, Maggie Makar

Given a similarity metric, contrastive methods learn a representation in which examples that are similar are pushed together and examples that are dissimilar are pulled apart.

Caption Generation Contrastive Learning +2

Leveraging Factored Action Spaces for Efficient Offline Reinforcement Learning in Healthcare

2 code implementations2 May 2023 Shengpu Tang, Maggie Makar, Michael W. Sjoding, Finale Doshi-Velez, Jenna Wiens

We study the theoretical properties of our approach, identifying scenarios where it is guaranteed to lead to zero bias when used to approximate the Q-function.

Offline RL reinforcement-learning +1

Offline Policy Evaluation and Optimization under Confounding

no code implementations29 Nov 2022 Chinmaya Kausik, Yangyi Lu, Kevin Tan, Maggie Makar, Yixin Wang, Ambuj Tewari

Evaluating and optimizing policies in the presence of unobserved confounders is a problem of growing interest in offline reinforcement learning.

Offline RL Off-policy evaluation

Fairness and robustness in anti-causal prediction

no code implementations20 Sep 2022 Maggie Makar, Alexander D'Amour

Robustness to distribution shift and fairness have independently emerged as two important desiderata required of modern machine learning models.

Attribute Fairness

Causally motivated Shortcut Removal Using Auxiliary Labels

1 code implementation13 May 2021 Maggie Makar, Ben Packer, Dan Moldovan, Davis Blalock, Yoni Halpern, Alexander D'Amour

Shortcut learning, in which models make use of easy-to-represent but unstable associations, is a major failure mode for robust machine learning.

Causal Inference Disentanglement +1

Exploiting structured data for learning contagious diseases under incomplete testing

no code implementations1 Jan 2021 Maggie Makar, Lauren West, David Hooper, Eric Horvitz, Erica Shenoy, John Guttag

In this work we ask: can we build reliable infection prediction models when the observed data is collected under limited, and biased testing that prioritizes testing symptomatic individuals?

Estimation of Bounds on Potential Outcomes For Decision Making

no code implementations ICML 2020 Maggie Makar, Fredrik D. Johansson, John Guttag, David Sontag

Estimation of individual treatment effects is commonly used as the basis for contextual decision making in fields such as healthcare, education, and economics.

Decision Making

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