collaborators

5 papers

cs.AI2026

Atomic Skills are the Prerequisite: When Reinforcement Learning Synthesizes Compositional Reasoning, and When It Only Amplifies

Sitao Cheng, Xunjian Yin, Ruiwen Zhou +5

Does Reinforcement Learning (RL) merely amplify existing skills, or synthesize novel skills? We investigate this question through the lens of Complementary Reasoning: the critical…

cs.CL2026

LEDOM: Reverse Language Model

Xunjian Yin, Sitao Cheng, Yuxi Xie +6

Autoregressive language models are trained exclusively left-to-right. We explore the complementary factorization, training right-to-left at scale, and ask what reasoning patterns e…

cs.AI2025

Gödel Agent: A Self-Referential Agent Framework for Recursive Self-Improvement

Xunjian Yin, Xinyi Wang, Liangming Pan +3

The rapid advancement of large language models (LLMs) has significantly enhanced the capabilities of AI-driven agents across various tasks. However, existing agentic systems, wheth…

cs.CL2025

Disentangling Memory and Reasoning Ability in Large Language Models

Mingyu Jin, Weidi Luo, Sitao Cheng +5

Large Language Models (LLMs) have demonstrated strong performance in handling complex tasks requiring both extensive knowledge and reasoning abilities. However, the existing LLM in…

cs.CL2025

Generalization v.s. Memorization: Tracing Language Models' Capabilities Back to Pretraining Data

Xinyi Wang, Antonis Antoniades, Yanai Elazar +4

The impressive capabilities of large language models (LLMs) have sparked debate over whether these models genuinely generalize to unseen tasks or predominantly rely on memorizing v…