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From the 1 of 13 linked papers with an AI index.

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20242026
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13 papers

cs.LG2026

When and Why Does Multi-Agent Debate Fail and Does It Really Underperform?

Yongqiang Chen, Gang Niu, James Cheng +2

The paper examines why multi-agent debate (MAD) often underperforms single-agent methods, identifies flaws in existing competitive and consensus-based MAD protocols, and proposes a…

cs.AI2026

APeB: Benchmarking Personalization Ability of Large Language Model Agents

Garry Yang, Zizhe Chen, Xinru Chen +9

LLM-powered agents struggle with personalization when users issue raw, underspecified queries. In this setting, agents must infer latent intent, extract preferences from noisy inte…

cs.AI2026

On Information Self-Locking in Reinforcement Learning for Active Reasoning of LLM agents

Deyu Zou, Yongqiang Chen, Fan Feng +4

Reinforcement learning (RL) has become a de facto paradigm for building LLM-based agents that act, interact, and reason over extended task horizons. However, in active reasoning wh…

cs.AI2026

Reducing Belief Deviation in Reinforcement Learning for Active Reasoning

Deyu Zou, Yongqiang Chen, Jianxiang Wang +5

Active reasoning requires large language model (LLM) agents to interact with external sources and strategically gather information to solve problems in multiple turns. Central to t…

cs.LG2025

Discovering and Reasoning of Causality in the Hidden World with Large Language Models

Chenxi Liu, Yongqiang Chen, Tongliang Liu +4

Revealing hidden causal variables alongside the underlying causal mechanisms is essential to the development of science. Despite the progress in the past decades, existing practice…

cs.CL2025

Retrieval-Augmented Generation with Hierarchical Knowledge

Haoyu Huang, Yongfeng Huang, Junjie Yang +5

Graph-based Retrieval-Augmented Generation (RAG) methods have significantly enhanced the performance of large language models (LLMs) in domain-specific tasks. However, existing RAG…