collaborators

8 papers

cs.AI2026

AMAP Agentic Planning Technical Report

AMAP AI Agent Team, Yulan Hu, Xiangwen Zhang +22

We present STAgent, an agentic large language model tailored for spatio-temporal understanding, designed to solve complex tasks such as constrained point-of-interest discovery and…

cs.DC2025

RollMux: Phase-Level Multiplexing for Disaggregated RL Post-Training

Tianyuan Wu, Lunxi Cao, Yining Wei +11

Rollout-training disaggregation is emerging as the standard architecture for Reinforcement Learning (RL) post-training, where memory-bound rollout and compute-bound training are ph…

cs.LG2025

Part II: ROLL Flash -- Accelerating RLVR and Agentic Training with Asynchrony

Han Lu, Zichen Liu, Shaopan Xiong +19

Synchronous Reinforcement Learning (RL) post-training has emerged as a crucial step for enhancing Large Language Models (LLMs) with diverse capabilities. However, many systems desi…

cs.DC2025

RollPacker: Mitigating Long-Tail Rollouts for Fast, Synchronous RL Post-Training

Wei Gao, Yuheng Zhao, Dakai An +11

Reinforcement Learning (RL) is a pivotal post-training technique for enhancing the reasoning capabilities of Large Language Models (LLMs). However, synchronous RL post-training oft…

cs.IR2025

RecIS: Sparse to Dense, A Unified Training Framework for Recommendation Models

Hua Zong, Qingtao Zeng, Zhengxiong Zhou +31

In this paper, we propose RecIS, a unified Sparse-Dense training framework designed to achieve two primary goals: 1. Unified Framework To create a Unified sparse-dense training fra…

cs.LG2025

Part I: Tricks or Traps? A Deep Dive into RL for LLM Reasoning

Zihe Liu, Jiashun Liu, Yancheng He +13

Reinforcement learning for LLM reasoning has rapidly emerged as a prominent research area, marked by a significant surge in related studies on both algorithmic innovations and prac…