Entity Profile Generation and Reasoning with LLMs for Entity Alignment

Rumana Ferdous Munne, Md Mostafizur Rahman, Yuji Matsumoto


Abstract
Entity alignment (EA) involves identifying and linking equivalent entities across different knowledge graphs (KGs). While knowledge graphs provide structured information about real-world entities, only a small fraction of these entities are aligned. The entity alignment process is challenging due to heterogeneity in KGs, such as differences in structure, terminology, and attribute details. Traditional EA methods use multi-aspect entity embeddings to align entities. Although these methods perform well in certain scenarios, their effective- ness is often constrained by sparse or incomplete data in knowledge graphs and the limitations of embedding techniques. We propose ProLEA ( Profile Generation and Reasoning with LLMs for Entity Alignment) an entity alignment method that combines large language models (LLMs) with entity embed- dings. LLMs generate contextual profiles for entities based on their properties. Candidate entities identified by entity embedding techniques are then re-evaluated by the LLMs, using its background knowledge and the generated profile. A thresholding mechanism is introduced to resolve conflicts between LLMs predictions and embedding-based alignments. This method enhances alignment accuracy, robustness, and explainability, particularly for complex, het- erogeneous knowledge graphs. Furthermore, ProLEA is a generalized framework. Its profile generation and LLM-enhanced entity align- ment components can improve the performance of existing entity alignment models.
Anthology ID:
2025.findings-emnlp.1093
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2025
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Christos Christodoulopoulos, Tanmoy Chakraborty, Carolyn Rose, Violet Peng
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
20073–20086
Language:
URL:
https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.findings-emnlp.1093/
DOI:
10.18653/v1/2025.findings-emnlp.1093
Bibkey:
Cite (ACL):
Rumana Ferdous Munne, Md Mostafizur Rahman, and Yuji Matsumoto. 2025. Entity Profile Generation and Reasoning with LLMs for Entity Alignment. In Findings of the Association for Computational Linguistics: EMNLP 2025, pages 20073–20086, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
Entity Profile Generation and Reasoning with LLMs for Entity Alignment (Munne et al., Findings 2025)
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https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.findings-emnlp.1093.pdf
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