collaborators

9 papers

cs.AI2026

OpenClaw-Skill: Collective Skill Tree Search for Agentic Large Language Models

Tianyi Lin, Chuanyu Sun, Jingyi Zhang +6

Equipping Large Language Model (LLM) agents with effective skills is crucial for solving complex tasks in real-world systems like OpenClaw. In this work, we aim to develop a framew…

cs.LG2026

R1-SyntheticVL: Is Synthetic Data from Generative Models Ready for Multimodal Large Language Model?

Jingyi Zhang, Tianyi Lin, Huanjin Yao +3

In this work, we aim to develop effective data synthesis techniques that autonomously synthesize multimodal training data for enhancing MLLMs in solving complex real-world tasks. T…

cs.LG2026

Efficient Exploration for Iterative Nash Preference Optimization

Tianlong Nan, Xiaopeng Li, Christian Kroer +1

Preference alignment is central to improving large language models, but standard reward-based formulations can be restrictive when human preferences are cyclic, non-transitive, or…

cs.LG2026

DRIFT: Decoupled Rollouts and Importance-Weighted Fine-Tuning for Efficient Multi-Turn Optimization

Jian Mu, Tianyi Lin, Chengwei Qin +2

Large language models are increasingly deployed in multi-turn interactive settings where users or environments can iteratively provide lightweight feedback. Unfortunately, optimizi…

cs.CL2026

Reward-free Alignment for Conflicting Objectives

Peter Chen, Xiaopeng Li, Xi Chen +1

Direct alignment methods are increasingly used to align large language models (LLMs) with human preferences. However, many real-world alignment problems involve multiple conflictin…

econ.TH2026

How AI Aggregation Affects Knowledge

Daron Acemoglu, Tianyi Lin, Asuman Ozdaglar +1

Artificial intelligence (AI) changes social learning when aggregated outputs become training data for future predictions. To study this, we extend the DeGroot model by introducing…