collaborators

6 papers

cs.AI2026

RewardFlow: Topology-Aware Reward Propagation on State Graphs for Agentic RL with Large Language Models

Xiao Feng, Bo Han, Zhanke Zhou +5

Reinforcement learning (RL) shows promise for enhancing LLM agentic reasoning, yet sparse terminal rewards hinder fine-grained optimization. Process reward modeling offers an alter…

cs.LG2026

Co-rewarding: Stable Self-supervised RL for Eliciting Reasoning in Large Language Models

Zizhuo Zhang, Jianing Zhu, Xinmu Ge +6

While reinforcement learning with verifiable rewards (RLVR) is effective to improve the reasoning ability of large language models (LLMs), its reliance on human-annotated labels le…

cs.AI2026

AlphaApollo: A System for Deep Agentic Reasoning

Zhanke Zhou, Chentao Cao, Xiao Feng +15

We present AlphaApollo, an agentic reasoning system that targets two bottlenecks in foundation-model reasoning: (1) limited reasoning capacity for complex, long-horizon problem sol…

cs.CL2026

Multi-Agent Debate with Memory Masking

Hongduan Tian, Xiao Feng, Ziyuan Zhao +3

Large language models (LLMs) have recently demonstrated impressive capabilities in reasoning tasks. Currently, mainstream LLM reasoning frameworks predominantly focus on scaling up…

cs.LG2026

Landscape of Thoughts: Visualizing the Reasoning Process of Large Language Models

Zhanke Zhou, Zhaocheng Zhu, Xuan Li +5

Numerous applications of large language models (LLMs) rely on their ability to perform step-by-step reasoning. However, the reasoning behavior of LLMs remains poorly understood, po…

cs.LG2025

From Passive to Active Reasoning: Can Large Language Models Ask the Right Questions under Incomplete Information?

Zhanke Zhou, Xiao Feng, Zhaocheng Zhu +3

While existing benchmarks probe the reasoning abilities of large language models (LLMs) across diverse domains, they predominantly assess passive reasoning, providing models with a…