Search Results for author: Roshni Sahoo

Found 7 papers, 3 papers with code

Policy Learning under Biased Sample Selection

no code implementations23 Apr 2023 Lihua Lei, Roshni Sahoo, Stefan Wager

Practitioners often use data from a randomized controlled trial to learn a treatment assignment policy that can be deployed on a target population.

Learning from a Biased Sample

1 code implementation5 Sep 2022 Roshni Sahoo, Lihua Lei, Stefan Wager

Applying the distributionally robust optimization framework, we propose a method for learning a decision rule that minimizes the worst-case risk incurred under a family of test distributions that can generate the training distribution under $\Gamma$-biased sampling.

Decision Making Length-of-Stay prediction

Policy Learning with Competing Agents

1 code implementation4 Apr 2022 Roshni Sahoo, Stefan Wager

Decision makers often aim to learn a treatment assignment policy under a capacity constraint on the number of agents that they can treat.

Reliable Decisions with Threshold Calibration

no code implementations NeurIPS 2021 Roshni Sahoo, Shengjia Zhao, Alyssa Chen, Stefano Ermon

We propose a stronger notion of calibration called threshold calibration, which is exactly the condition required to ensure that decision loss is predicted accurately for threshold decisions.

Scheduling

Calibrating Predictions to Decisions: A Novel Approach to Multi-Class Calibration

no code implementations NeurIPS 2021 Shengjia Zhao, Michael P. Kim, Roshni Sahoo, Tengyu Ma, Stefano Ermon

In this work, we introduce a new notion -- \emph{decision calibration} -- that requires the predicted distribution and true distribution to be ``indistinguishable'' to a set of downstream decision-makers.

Decision Making

Unsupervised Domain Adaptation in the Absence of Source Data

no code implementations20 Jul 2020 Roshni Sahoo, Divya Shanmugam, John Guttag

Current unsupervised domain adaptation methods can address many types of distribution shift, but they assume data from the source domain is freely available.

Unsupervised Domain Adaptation

Deep Orientation Uncertainty Learning based on a Bingham Loss

1 code implementation ICLR 2020 Igor Gilitschenski, Roshni Sahoo, Wilko Schwarting, Alexander Amini, Sertac Karaman, Daniela Rus

Reasoning about uncertain orientations is one of the core problems in many perception tasks such as object pose estimation or motion estimation.

Motion Estimation Pose Estimation

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