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Zhichao Sheng

3 accepted papers

2025

Enhancing Chain-of-Thought Reasoning via Neuron Activation Differential Analysis

EMNLP 2025

Despite the impressive chain-of-thought(CoT) reasoning ability of large language models (LLMs), its underlying mechanisms remains unclear. In this paper, we explore the inner workings of LLM’s CoT ability via the lens of neurons in the feed-forward layers. We propose an efficient method to identify

Cited by 0SourcePDFScholar
2025

Evaluating Large Language Models through Role-Guide and Self-Reflection: A Comparative Study

ICLR 2025poster

Large Language Models fine-tuned with Reinforcement Learning from Human Feedback (RLHF-LLMs) can over-rely on aligned preferences without truly gaining self-knowledge, leading to hallucination and biases. If an LLM can better access its knowledge and know what it knows, it can avoid making false or…

Cited by 2SourcePDFScholar
2024

JiuZhang3.0: Efficiently Improving Mathematical Reasoning by Training Small Data Synthesis Models

NeurIPS 2024poster

Mathematical reasoning is an important capability of large language models~(LLMs) for real-world applications. To enhance this capability, existing work either collects large-scale math-related texts for pre-training, or relies on stronger LLMs (\eg GPT-4) to synthesize massive math problems. Both t…