GRIP: In-Parameter Graph Reasoning through Fine-Tuning Large Language Models

Fuente: arXiv
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Main Authors: Feng, Jiarui, Cai, Donghong, Chen, Yixin, Zhang, Muhan
Format: Preprint
Published: 2025
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author Feng, Jiarui
Cai, Donghong
Chen, Yixin
Zhang, Muhan
author_facet Feng, Jiarui
Cai, Donghong
Chen, Yixin
Zhang, Muhan
contents Large Language Models (LLMs) have demonstrated remarkable capabilities in modeling sequential textual data and generalizing across diverse tasks. However, adapting LLMs to effectively handle structural data, such as knowledge graphs or web data, remains a challenging problem. Some approaches adopt complex strategies to convert graphs into text sequences, resulting in significant token overhead and rendering them impractical for large-scale graphs. Others introduce additional modules to encode graphs into fixed-size token representations for LLMs. However, these methods typically require large-scale post-training on graph-text corpus and complex alignment procedures, yet often yield sub-optimal results due to poor modality alignment. Inspired by in-parameter knowledge injection for test-time adaptation of LLMs, we propose GRIP, a novel framework that equips LLMs with the ability to internalize complex relational information from graphs through carefully designed fine-tuning tasks. This knowledge is efficiently stored within lightweight LoRA parameters, enabling the fine-tuned LLM to perform a wide range of graph-related tasks without requiring access to the original graph at inference time. Extensive experiments across multiple benchmarks validate the effectiveness and efficiency of our approach.
format Preprint
id arxiv_https___arxiv_org_abs_2511_07457
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle GRIP: In-Parameter Graph Reasoning through Fine-Tuning Large Language Models
Feng, Jiarui
Cai, Donghong
Chen, Yixin
Zhang, Muhan
Computation and Language
Artificial Intelligence
Large Language Models (LLMs) have demonstrated remarkable capabilities in modeling sequential textual data and generalizing across diverse tasks. However, adapting LLMs to effectively handle structural data, such as knowledge graphs or web data, remains a challenging problem. Some approaches adopt complex strategies to convert graphs into text sequences, resulting in significant token overhead and rendering them impractical for large-scale graphs. Others introduce additional modules to encode graphs into fixed-size token representations for LLMs. However, these methods typically require large-scale post-training on graph-text corpus and complex alignment procedures, yet often yield sub-optimal results due to poor modality alignment. Inspired by in-parameter knowledge injection for test-time adaptation of LLMs, we propose GRIP, a novel framework that equips LLMs with the ability to internalize complex relational information from graphs through carefully designed fine-tuning tasks. This knowledge is efficiently stored within lightweight LoRA parameters, enabling the fine-tuned LLM to perform a wide range of graph-related tasks without requiring access to the original graph at inference time. Extensive experiments across multiple benchmarks validate the effectiveness and efficiency of our approach.
title GRIP: In-Parameter Graph Reasoning through Fine-Tuning Large Language Models
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2511.07457