collaborators

20 papers

cs.LG2026

TREK: Distill to Explore, Reinforce to Refine

Yuanda Xu, Zhengze Zhou, Kayhan Behdin +10

Group Relative Policy Optimization (GRPO) is effective when the current policy already samples useful reasoning trajectories, but it stalls on hard prompts whose correct solution m…

cs.LG2026

TRIAGE: Role-Typed Credit Assignment for Agentic Reinforcement Learning

Yuanda Xu, Zhengze Zhou, Hejian Sang +6

Agentic reinforcement learning requires assigning credit to environment-facing actions such as searches, clicks, edits, navigation commands, and object interactions. Standard GRPO…

cs.LG2026

CRISP: Compressed Reasoning via Iterative Self-Policy Distillation

Hejian Sang, Yuanda Xu, Zhengze Zhou +3

Reasoning models often generate far more tokens than a task requires, which raises inference cost and can compound errors. We introduce CRISP (Compressed Reasoning via Iterative Se…

cs.CL2026

Distilling the Essence: Efficient Reasoning Distillation via Sequence Truncation

Wei-Rui Chen, Vignesh Kothapalli, Ata Fatahibaarzi +5

Distilling the capabilities from a large reasoning model (LRM) to a smaller student model often involves training on substantial amounts of reasoning data. However, knowledge disti…

cs.DC2026

Large-Scale Regularized Matching on GPU Clusters

Aida Rahmattalabi, Gregory Dexter, Sanjana Garg +5

Production decision systems such as ad allocation or content matching involve millions of users and thousands of items, reducing to large-scale linear programs with sparse block-di…

cs.LG2026

Rosetta Memory: Adaptive Memory for Cross-LLM Agents

Hao Yang, Shiqi Shen, Haoxuan Li +3

Memory is the key component for transforming a stateless LLM into a persistent, evolving agent through experience accumulation, long-horizon planning, and continual self-improvemen…