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Hanzhu Chen

11 accepted papers

2026

Boosting Multi-Domain Reasoning of LLMs via Curvature-Guided Policy Optimization

ICLR 2026poster

Multi-domain reinforcement learning (RL) for large language models (LLMs) involves highly intricate reward surfaces, posing significant challenges in finding parameters that excel across all domains. Recent empirical studies have further highlighted conflicts among domains, where gains in one capabi…

Cited by 0SourcecodeScholar
2026

Following the Navigation: Enhancing Small Language Models Contextual Reasoning with LLM Guidance

ICLR 2026poster

Large language models (LLMs), such as OpenAI-o1 and DeepSeek-R1, excel in contextual reasoning by leveraging extensive world knowledge and deep contextual understanding. However, their high computational costs limit deployment in resource-constrained settings. Conversely, small language models (SLMs…

Cited by 0SourceScholar
2026

Latent-Guided Reasoning: Empowering Small LLMs with Large-Model Thinking

ICLR 2026poster

Large Language Models (LLMs) have demonstrated remarkable capabilities in complex reasoning tasks, but their high computational costs limit their widespread practical application. We argue that this inefficiency arises from the tight coupling of high-level cognitive planning (devising the solution s…

Cited by 0SourceScholar
2025

Boosting Multi-Domain Fine-Tuning of Large Language Models through Evolving Interactions between Samples

ICML 2025poster

The multi-domain fine-tuning of large language models (LLMs) confronts a notorious trade-off among abilities across domains. Existing studies attribute this trade-off to the conflicts between samples rooted in inherent semantics. Recent approaches attempt to mitigate these conflicts through the empi…

Cited by 0SourcePDFScholar
2025

Knowledge Graph Finetuning Enhances Knowledge Manipulation in Large Language Models

ICLR 2025poster

Despite the impressive performance of general large language models(LLMs), many of their applications in specific domains (e.g., low-data and knowledge-intensive) still confront significant challenges. Supervised fine-tuning (SFT)---where a general LLM is further trained on a small labeled dataset t…

Cited by 3SourcePDFScholar
2025

LogicTree: Improving Complex Reasoning of LLMs via Instantiated Multi-step Synthetic Logical Data

NeurIPS 2025spotlight

Despite their remarkable performance on various tasks, Large Language Models (LLMs) still struggle with logical reasoning, particularly in complex and multi-step reasoning processes. Among various efforts to enhance LLMs' reasoning capabilities, synthesizing large-scale, high-quality logical reason…

Cited by 0SourceScholar
2025

ROPO: Robust Preference Optimization for Large Language Models

ICML 2025poster

The prevalent noise in the preference data unavoidably poses significant challenges to the preference alignment of large language models (LLMs). Existing efforts for this problem either marginally alleviate the impact of noise without noise reduction, or rely on external LLMs that incur substantial…

Cited by 2SourcePDFScholar
2024

Coarse-to-Fine Highlighting: Reducing Knowledge Hallucination in Large Language Models

ICML 2024poster

Generation of plausible but incorrect factual information, often termed hallucination, has attracted significant research interest. Retrieval-augmented language model (RALM)---which enhances models with up-to-date knowledge---emerges as a promising method to reduce hallucination. However, existing R…

Cited by 10SourcePDFScholar
2024

Neural Krylov Iteration for Accelerating Linear System Solving

NeurIPS 2024spotlight

Solving large-scale sparse linear systems is essential in fields like mathematics, science, and engineering. Traditional numerical solvers, mainly based on the Krylov subspace iteration algorithm, suffer from the low-efficiency problem, which primarily arises from the less-than-ideal iteration. To t…

Cited by 3SourcePDFScholar
2024

SAC-KG: Exploiting Large Language Models as Skilled Automatic Constructors for Domain Knowledge Graph

ACL 2024long

Knowledge graphs (KGs) play a pivotal role in knowledge-intensive tasks across specialized domains, where the acquisition of precise and dependable knowledge is crucial. However, existing KG construction methods heavily rely on human intervention to attain qualified KGs, which severely hinders the p…

Cited by 8SourcePDFScholar
2023

Learning Rule-Induced Subgraph Representations for Inductive Relation Prediction

NeurIPS 2023poster

Inductive relation prediction (IRP)---where entities can be different during training and inference---has shown great power for completing evolving knowledge graphs. Existing works mainly focus on using graph neural networks (GNNs) to learn the representation of the subgraph induced from the target…