Representation learning of knowledge bases aims to embed both entities and relations into a low-dimensional space. Most existing methods only consider direct relations in representation learning. We argue that multiple-step relation paths also contain rich inference patterns between entities, and propose a path-based representation learning model. This model considers relation paths as translations between entities for representation learning, and addresses two key challenges: (1) Since not all relation paths are reliable, we design a path-constraint resource allocation algorithm to measure the reliability of relation paths. (2) We represent relation paths via semantic composition of relation embeddings. Experimental results on real-world datasets show that, as compared with baselines, our model achieves significant and consistent improvements on knowledge base completion and relation extraction from text. The source code of this paper can be obtained from https://github.com/mrlyk423/ relation_extraction.
Modeling Relation Paths for Representation Learning of Knowledge Bases
Yankai Lin,Zhiyuan Liu,Huanbo Luan,Maosong Sun,Siwei Rao,Song Liu
Published 2015 in Conference on Empirical Methods in Natural Language Processing
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- Publication year
2015
- Venue
Conference on Empirical Methods in Natural Language Processing
- Publication date
2015-06-01
- Fields of study
Computer Science
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