Journal of Applied Sciences ›› 2025, Vol. 43 ›› Issue (3): 491-503.doi: 10.3969/j.issn.0255-8297.2025.03.010

• Signal and Information Processing • Previous Articles    

Entity Relationship Extraction Method Based on Bidirectional Decoding

LIU Hui, ZHANG Zhi, CHEN Yupeng   

  1. College of Electronic Countermeasures, National University of Defense Technology, Hefei 230037, Anhui, China
  • Received:2024-01-30 Published:2025-06-23

Abstract: To address the challenges of error propagation, overlapping triple problem and subject-object alignment in the existing relationship triplet extraction methods, this study proposes a novel bidirectional translation and decoding model. The model reframes the extraction process into three sub-tasks: entity extraction, subject-object alignment and relationship judgment. The bidirectional structure effectively alleviates error propagation, while the translation and decoding method based on the attention mechanism deals with the overlapping triple problem and aligns the subject and object. Finally, a bipartite entity-torelationship diagram fully explores the relationship between entity pairs, enabling accurate relationship judgment. Experimental results on public datasets have validated the performance of the proposed model.

Key words: nature language processing, information extraction, entity extraction, relationship extraction, error propagation, triplet

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