LKD-KGC: Domain-Specific KG Construction via LLM-driven Knowledge Dependency Parsing

• URL: http://arxiv.org/abs/2505.24163v1
• Date: Fri, 30 May 2025 03:10:23 GMT
• Title: LKD-KGC: Domain-Specific KG Construction via LLM-driven Knowledge Dependency Parsing
• Authors: Jiaqi Sun, Shiyou Qian, Zhangchi Han, Wei Li, Zelin Qian, Dingyu Yang, Jian Cao, Guangtao Xue,
• Abstract summary: Knowledge Graphs (KGs) structure real-world entities and their relationships into triples, enhancing machine reasoning for various tasks.<n>Recent approaches for knowledge graph construction based on large language models (LLMs) have proven efficient.<n>We propose LKD-KGC, a novel framework for unsupervised domain-specific KG construction.
• Score: 9.502380540548497
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Knowledge Graphs (KGs) structure real-world entities and their relationships into triples, enhancing machine reasoning for various tasks. While domain-specific KGs offer substantial benefits, their manual construction is often inefficient and requires specialized knowledge. Recent approaches for knowledge graph construction (KGC) based on large language models (LLMs), such as schema-guided KGC and reference knowledge integration, have proven efficient. However, these methods are constrained by their reliance on manually defined schema, single-document processing, and public-domain references, making them less effective for domain-specific corpora that exhibit complex knowledge dependencies and specificity, as well as limited reference knowledge. To address these challenges, we propose LKD-KGC, a novel framework for unsupervised domain-specific KG construction. LKD-KGC autonomously analyzes document repositories to infer knowledge dependencies, determines optimal processing sequences via LLM driven prioritization, and autoregressively generates entity schema by integrating hierarchical inter-document contexts. This schema guides the unsupervised extraction of entities and relationships, eliminating reliance on predefined structures or external knowledge. Extensive experiments show that compared with state-of-the-art baselines, LKD-KGC generally achieves improvements of 10% to 20% in both precision and recall rate, demonstrating its potential in constructing high-quality domain-specific KGs.

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