Enhancing the Patent Matching Capability of Large Language Models via the Memory Graph

Fuente: arXiv
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Autores principales: Xiong, Qiushi, Xu, Zhipeng, Liu, Zhenghao, Wang, Mengjia, Chen, Zulong, Sun, Yue, Gu, Yu, Li, Xiaohua, Yu, Ge
Formato: Preprint
Publicado: 2025
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author Xiong, Qiushi
Xu, Zhipeng
Liu, Zhenghao
Wang, Mengjia
Chen, Zulong
Sun, Yue
Gu, Yu
Li, Xiaohua
Yu, Ge
author_facet Xiong, Qiushi
Xu, Zhipeng
Liu, Zhenghao
Wang, Mengjia
Chen, Zulong
Sun, Yue
Gu, Yu
Li, Xiaohua
Yu, Ge
contents Intellectual Property (IP) management involves strategically protecting and utilizing intellectual assets to enhance organizational innovation, competitiveness, and value creation. Patent matching is a crucial task in intellectual property management, which facilitates the organization and utilization of patents. Existing models often rely on the emergent capabilities of Large Language Models (LLMs) and leverage them to identify related patents directly. However, these methods usually depend on matching keywords and overlook the hierarchical classification and categorical relationships of patents. In this paper, we propose MemGraph, a method that augments the patent matching capabilities of LLMs by incorporating a memory graph derived from their parametric memory. Specifically, MemGraph prompts LLMs to traverse their memory to identify relevant entities within patents, followed by attributing these entities to corresponding ontologies. After traversing the memory graph, we utilize extracted entities and ontologies to improve the capability of LLM in comprehending the semantics of patents. Experimental results on the PatentMatch dataset demonstrate the effectiveness of MemGraph, achieving a 17.68% performance improvement over baseline LLMs. The further analysis highlights the generalization ability of MemGraph across various LLMs, both in-domain and out-of-domain, and its capacity to enhance the internal reasoning processes of LLMs during patent matching. All data and codes are available at https://github.com/NEUIR/MemGraph.
format Preprint
id arxiv_https___arxiv_org_abs_2504_14845
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Enhancing the Patent Matching Capability of Large Language Models via the Memory Graph
Xiong, Qiushi
Xu, Zhipeng
Liu, Zhenghao
Wang, Mengjia
Chen, Zulong
Sun, Yue
Gu, Yu
Li, Xiaohua
Yu, Ge
Information Retrieval
Intellectual Property (IP) management involves strategically protecting and utilizing intellectual assets to enhance organizational innovation, competitiveness, and value creation. Patent matching is a crucial task in intellectual property management, which facilitates the organization and utilization of patents. Existing models often rely on the emergent capabilities of Large Language Models (LLMs) and leverage them to identify related patents directly. However, these methods usually depend on matching keywords and overlook the hierarchical classification and categorical relationships of patents. In this paper, we propose MemGraph, a method that augments the patent matching capabilities of LLMs by incorporating a memory graph derived from their parametric memory. Specifically, MemGraph prompts LLMs to traverse their memory to identify relevant entities within patents, followed by attributing these entities to corresponding ontologies. After traversing the memory graph, we utilize extracted entities and ontologies to improve the capability of LLM in comprehending the semantics of patents. Experimental results on the PatentMatch dataset demonstrate the effectiveness of MemGraph, achieving a 17.68% performance improvement over baseline LLMs. The further analysis highlights the generalization ability of MemGraph across various LLMs, both in-domain and out-of-domain, and its capacity to enhance the internal reasoning processes of LLMs during patent matching. All data and codes are available at https://github.com/NEUIR/MemGraph.
title Enhancing the Patent Matching Capability of Large Language Models via the Memory Graph
topic Information Retrieval
url https://arxiv.org/abs/2504.14845