activity
20232026
most citedPersonalized Soups: Personalized Large Language Model Alignment via Post-hoc Parameter Merging

6 citations · 7 across the 13 of their papers we have counts for

collaborators

14 papers

cs.RO2026

Bridging Frontier Reasoning and Robot Execution: From Autonomous Demonstration Generation to Dense Language Supervision

Bosung Kim, Alexander Trevithick, Ruiyi Wang +1

Recent advances in frontier models enable robot manipulation from only a few demonstrations, but high inference latency limits their use for real-time robot control. To bridge this…

cs.LG2026

Introspective X Training: Feedback Conditioning Improves Scaling Across all LLM Training Stages

Brandon Cui, Ximing Lu, Jaehun Jung +7

We tackle the question of how to scale more efficiently across the many, ever-growing stages of current LLM training pipelines. Our guiding intuition stems from the fact that the d…

cs.RO2026

How to Instruct Your Robot: Dense Language Annotations Power Robot Policy Learning

Bosung Kim, Ruiyi Wang, David Acuna +5

Scaling robot policy learning is bottlenecked by the cost of collecting demonstrations, while language annotations for existing demonstrations are comparatively cheap. We study lan…

cs.LG2026

MASS-DPO: Multi-negative Active Sample Selection for Direct Policy Optimization

Rohan Surana, Xintong Li, Sheldon Yu +7

Multi-negative preference optimization under the Plackett--Luce (PL) model extends Direct Preference Optimization (DPO) by leveraging comparative signals across one preferred and m…

cs.AI2026

Golden Goose: A Simple Trick to Synthesize Unlimited RLVR Tasks from Unverifiable Internet Text

Ximing Lu, David Acuna, Jaehun Jung +12

Reinforcement Learning with Verifiable Rewards (RLVR) has become a cornerstone for unlocking complex reasoning in Large Language Models (LLMs). Yet, scaling up RL is bottlenecked b…

cs.SD2025

Preference-Based Learning in Audio Applications: A Systematic Analysis

Aaron Broukhim, Yiran Shen, Prithviraj Ammanabrolu +1

Despite the parallel challenges that audio and text domains face in evaluating generative model outputs, preference learning remains remarkably underexplored in audio applications.…

cs.CV2025

Long Grounded Thoughts: Synthesizing Visual Problems and Reasoning Chains at Scale

David Acuna, Chao-Han Huck Yang, Yuntian Deng +6

Despite rapid progress, multimodal reasoning still lacks a systematic approach to synthesize large-scale vision-centric datasets beyond visual math. We introduce a framework able t…

cs.LG2025

Simultaneous Multi-objective Alignment Across Verifiable and Non-verifiable Rewards

Yiran Shen, Yu Xia, Jonathan Chang +1

Aligning large language models to human preferences is inherently multidimensional, yet most pipelines collapse heterogeneous signals into a single objective. We seek to answer wha…

cs.LG2025

A Practitioner's Guide to Multi-turn Agentic Reinforcement Learning

Ruiyi Wang, Prithviraj Ammanabrolu

We study what actually works and what doesn't for training large language models as agents via multi-turn reinforcement learning. Despite rapid progress, existing frameworks and de…

cs.AI2025

TALES: Text Adventure Learning Environment Suite

Christopher Zhang Cui, Xingdi Yuan, Ziang Xiao +2

Reasoning is an essential skill to enable Large Language Models (LLMs) to interact with the world. As tasks become more complex, they demand increasingly sophisticated and diverse…

cs.CL2025

A Survey on Personalized and Pluralistic Preference Alignment in Large Language Models

Zhouhang Xie, Junda Wu, Yiran Shen +9

Personalized preference alignment for large language models (LLMs), the process of tailoring LLMs to individual users' preferences, is an emerging research direction spanning the a…

cs.LG2025

In-context Ranking Preference Optimization

Junda Wu, Rohan Surana, Zhouhang Xie +6

Recent developments in Direct Preference Optimization (DPO) allow large language models (LLMs) to function as implicit ranking models by maximizing the margin between preferred and…

cs.LG2024★ 1 cited

Critique-out-Loud Reward Models

Zachary Ankner, Mansheej Paul, Brandon Cui +2

Traditionally, reward models used for reinforcement learning from human feedback (RLHF) are trained to directly predict preference scores without leveraging the generation capabili…

cs.CL2023★ 6 cited

Personalized Soups: Personalized Large Language Model Alignment via Post-hoc Parameter Merging

Joel Jang, Seungone Kim, Bill Yuchen Lin +6

While Reinforcement Learning from Human Feedback (RLHF) aligns Large Language Models (LLMs) with general, aggregate human preferences, it is suboptimal for learning diverse, indivi…