activity
20232026
most citedPeer Reviews of Peer Reviews: A Randomized Controlled Trial and Other Experiments

7 citations · 10 across the 9 of their papers we have counts for

collaborators

10 papers

cs.HC2026

Use and Effects of LLMs in Peer Review: A Randomized Experiment and Survey at ICML 2026

Sunnie S. Y. Kim, Wesley Hanwen Deng, Jennifer Wortman Vaughan +8

LLMs are rapidly reshaping peer review, making it important to understand how reviewers use them in practice and how different LLM-use policies affect review outcomes. We investiga…

cs.LG2025

Mitigating Preference Hacking in Policy Optimization with Pessimism

Dhawal Gupta, Adam Fisch, Christoph Dann +1

This work tackles the problem of overoptimization in reinforcement learning from human feedback (RLHF), a prevalent technique for aligning models with human preferences. RLHF relie…

cs.LG2025

Design Considerations in Offline Preference-based RL

Alekh Agarwal, Christoph Dann, Teodor V. Marinov

Offline algorithms for Reinforcement Learning from Human Preferences (RLHF), which use only a fixed dataset of sampled responses given an input, and preference feedback among these…

stat.ML2025

Catoni Contextual Bandits are Robust to Heavy-tailed Rewards

Chenlu Ye, Yujia Jin, Alekh Agarwal +1

Typical contextual bandit algorithms assume that the rewards at each round lie in some fixed range , and their regret scales polynomially with this reward range . Howeve…

cs.CR2024

Preserving Expert-Level Privacy in Offline Reinforcement Learning

Navodita Sharma, Vishnu Vinod, Abhradeep Thakurta +4

The offline reinforcement learning (RL) problem aims to learn an optimal policy from historical data collected by one or more behavioural policies (experts) by interacting with an…

cs.LG2024

Conditional Language Policy: A General Framework for Steerable Multi-Objective Finetuning

Kaiwen Wang, Rahul Kidambi, Ryan Sullivan +17

Reward-based finetuning is crucial for aligning language policies with intended behaviors (e.g., creativity and safety). A key challenge is to develop steerable language models tha…

cs.LG2024

Offline Imitation Learning from Multiple Baselines with Applications to Compiler Optimization

Teodor V. Marinov, Alekh Agarwal, Mircea Trofin

This work studies a Reinforcement Learning (RL) problem in which we are given a set of trajectories collected with K baseline policies. Each of these policies can be quite suboptim…

cs.LG2024

More Benefits of Being Distributional: Second-Order Bounds for Reinforcement Learning

Kaiwen Wang, Owen Oertell, Alekh Agarwal +2

In this paper, we prove that Distributional Reinforcement Learning (DistRL), which learns the return distribution, can obtain second-order bounds in both online and offline RL in g…

cs.LG2024★ 3 cited

A Minimaximalist Approach to Reinforcement Learning from Human Feedback

Gokul Swamy, Christoph Dann, Rahul Kidambi +2

We present Self-Play Preference Optimization (SPO), an algorithm for reinforcement learning from human feedback. Our approach is minimalist in that it does not require training a r…

cs.DL2023★ 7 cited

Peer Reviews of Peer Reviews: A Randomized Controlled Trial and Other Experiments

Alexander Goldberg, Ivan Stelmakh, Kyunghyun Cho +4

Is it possible to reliably evaluate the quality of peer reviews? We study this question driven by two primary motivations -- incentivizing high-quality reviewing using assessed qua…