collaborators

5 papers

cs.CL2026

Harmony in Diversity: Multi-domain Contrastive Policy Optimization for Large Reasoning Models

Zongji Yu, Wenshui Luo, Yiliu Sun +4

Post-training has significantly enhanced the reasoning capability of Large Reasoning Models (LRMs), especially with Reinforcement Learning (RL) like Group Relative Policy Optimizat…

cs.AI2026

G-reasoner: Foundation Models for Unified Reasoning over Graph-structured Knowledge

Linhao Luo, Zicheng Zhao, Junnan Liu +9

Large language models (LLMs) excel at complex reasoning but remain limited by static and incomplete parametric knowledge. Retrieval-augmented generation (RAG) mitigates this by inc…

cs.IR2025

GFM-RAG: Graph Foundation Model for Retrieval Augmented Generation

Linhao Luo, Zicheng Zhao, Gholamreza Haffari +3

Retrieval-augmented generation (RAG) has proven effective in integrating knowledge into large language models (LLMs). However, conventional RAGs struggle to capture complex relatio…

cs.AI2025

CortexDebate: Debating Sparsely and Equally for Multi-Agent Debate

Yiliu Sun, Zicheng Zhao, Sheng Wan +1

Nowadays, single Large Language Model (LLM) struggles with critical issues such as hallucination and inadequate reasoning abilities. To mitigate these issues, Multi-Agent Debate (M…

cs.CL2025

Graph-constrained Reasoning: Faithful Reasoning on Knowledge Graphs with Large Language Models

Linhao Luo, Zicheng Zhao, Gholamreza Haffari +3

Large language models (LLMs) have demonstrated impressive reasoning abilities, but they still struggle with faithful reasoning due to knowledge gaps and hallucinations. To address…