collaborators

6 papers

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.RO2026

OmniUMI: Towards Physically Grounded Robot Learning via Human-Aligned Multimodal Interaction

Shaqi Luo, Yuanyuan Li, Youhao Hu +7

UMI-style interfaces enable scalable robot learning, but existing systems remain largely visuomotor, relying primarily on RGB observations and trajectory while providing only limit…

cs.AI2026

PACED: Distillation and On-Policy Self-Distillation at the Frontier of Student Competence

Yuanda Xu, Hejian Sang, Zhengze Zhou +2

Standard LLM distillation treats all training problems equally -- wasting compute on problems the student has already mastered or cannot yet solve. We empirically show that this in…

cs.LG2026

Not all tokens are needed(NAT): token efficient reinforcement learning

Hejian Sang, Yuanda Xu, Zhengze Zhou +2

Reinforcement learning (RL) has become a key driver of progress in large language models, but scaling RL to long chain-of-thought (CoT) trajectories is increasingly constrained by…

cs.IR2026

Semantic Search At LinkedIn

Fedor Borisyuk, Sriram Vasudevan, Muchen Wu +71

Semantic search with large language models (LLMs) enables retrieval by meaning rather than keyword overlap, but scaling it requires major inference efficiency advances. We present…

cs.IR2026

MixLM: High-Throughput and Effective LLM Ranking via Text-Embedding Mix-Interaction

Guoyao Li, Ran He, Shusen Jing +21

Large language models (LLMs) excel at capturing semantic nuances and therefore show impressive relevance ranking performance in modern recommendation and search systems. However, t…