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Yufei Xu

9 papers hereh-index 6263 citations9 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author6

Across the 7 of 9 papers where every author was matched, so the position is known.

fields
  • cs.CL4
  • cs.LG4
  • cs.AI1
same name
  • Yufei Xu — 20 papers, h 16
  • Yufei Xu — 1 paper, h 2
  • Yufei Xu — 1 paper, h 2
  • Yufei Xu — 1 paper, h 2

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

most citedSeed1.5-Thinking: Advancing Superb Reasoning Models with Reinforcement Learning

1 citations · 1 across the 8 of their papers we have counts for

collaborators
Showing cs.LGShow all

4 papers · 1 filter

cs.LG2026

MISA: Mixture of Indexer Sparse Attention for Long-Context LLM Inference

Ruijie Zhou, Fanxu Meng, Yufei Xu +4

DeepSeek Sparse Attention (DSA) sets the state of the art for fine-grained inference-time sparse attention by introducing a learned token-wise indexer that scores every prefix toke…

cs.LG2026

HISA: Efficient Hierarchical Indexing for Fine-Grained Sparse Attention

Yufei Xu, Fanxu Meng, Fan Jiang +11

Token-level sparse attention mechanisms, exemplified by DeepSeek Sparse Attention (DSA), achieve fine-grained key selection by scoring every historical key for each query through a…

cs.LG2025

AgentGym-RL: Training LLM Agents for Long-Horizon Decision Making through Multi-Turn Reinforcement Learning

Zhiheng Xi, Jixuan Huang, Chenyang Liao +20

Developing autonomous LLM agents capable of making a series of intelligent decisions to solve complex, real-world tasks is a fast-evolving frontier. Like human cognitive developmen…

cs.LG2025

Generalizable End-to-End Tool-Use RL with Synthetic CodeGym

Weihua Du, Hailei Gong, Zhan Ling +7

Tool-augmented large language models (LLMs), hereafter LLM agents, leverage external tools to solve diverse tasks and interface with the real world. However, current training pract…

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