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Knowledge graph completion method based on triple importance

A knowledge map and importance technology, applied in the field of knowledge map completion, can solve problems such as the inability to attach importance to triplet information, the inability to further improve knowledge map completion, and failure to consider the importance information of knowledge map triplets, etc.

Inactive Publication Date: 2020-12-15
HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
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Problems solved by technology

[0004] The existing technology does not consider the importance information of the knowledge map triplet, which leads to the inability of the model to pay appropriate attention to different triplet information when learning the triplet information, and cannot be further improved when completing the knowledge map

Method used

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  • Knowledge graph completion method based on triple importance
  • Knowledge graph completion method based on triple importance
  • Knowledge graph completion method based on triple importance

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The present invention improves the knowledge map completion effect by introducing the importance information of the knowledge map triplet, and considers the importance of entities (including head entities and tail entities) and relationship importance. Entity importance estimation uses the KGNodeRank method to estimate the importance of nodes in the knowledge graph, and the calculated KGNR value is used as the importance of the entity. Relational import...

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Abstract

The invention provides a knowledge graph completion method based on triple importance. The knowledge graph completion method comprises the steps: 1, estimating the importance of a head entity and theimportance of a tail entity of a triple in a knowledge graph; 2, estimating the first-order importance and the high-order importance of the relationship in the triple; and 3, obtaining the importanceof the triad according to the importance of the head entity, the importance of the tail entity and the importance of the relationship in the triad. According to the method, the triple importance in the knowledge graph is fully mined, the entity importance and the relationship importance are both considered, and the knowledge graph completion effect is further improved.

Description

technical field [0001] The invention relates to a knowledge graph completion method based on the importance of triples, and belongs to the technical field of knowledge graph completion. Background technique [0002] A knowledge graph is a semantic network for storing information, and its data storage form is generally a triplet, namely (head entity, relation, tail entity). Knowledge graph completion refers to the task of predicting the list of candidate entities given the head entity or tail entity and relationship in a knowledge graph triplet. [0003] The translation-based model is a common method in existing knowledge map completion schemes, the most representative of which is the TransE method, which regards the relation in each triple as the head of the triple The translation from the entity head to the tail entity tail continuously adjusts h, r, and t (the vectors of head, relation, and tail) so that (h+r) is as equal to t as possible in the vector space, that is, h+r...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/36G06F40/295
CPCG06F16/367G06F40/295
Inventor 廖清李忠文漆舒汉夏文蒋琳王轩
Owner HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
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