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Knowledge-driven query-based entity linking method

A knowledge-driven, entity technology, applied in structured data retrieval, instruments, electronic digital data processing, etc., can solve the problems of lack of context of query sentences, irregular description, etc., to improve accuracy and completeness, improve accuracy , the effect of slowing down the impact

Pending Publication Date: 2020-03-17
INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN GUANGDONG
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Problems solved by technology

[0005] The purpose of the present invention is to provide a knowledge-driven query-based entity linking method for the deficiencies of the prior art, which can solve the problems of lack of context and irregular description of user query statements, and reduce the dependence on local knowledge bases It also accurately realizes the generation and discrimination of candidate entities, thereby improving the performance of entity linking

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[0033] Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", horizontal" etc. are based on the draw...

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Abstract

The invention belongs to the technical field of entity linking, and particularly relates to a knowledge-driven query-based entity linking method which comprises the following steps of 1, identifying the named entity reference items in the user query statements on the basis of syntactic analysis; 2, based on incremental evidence mining, through an external knowledge source, carrying out informationexpansion on the entity reference items and a local knowledge base; and 3, performing link processing on the entity reference items by adopting an inference link algorithm. According to the method, the problems of lack of context, non-standard description and the like of the user query statements can be solved, the dependence on the local knowledge base is reduced, and the generation and discrimination of the candidate entities are accurately realized, so that the performance of the entity links is improved.

Description

technical field [0001] The invention belongs to the technical field of entity linking, and in particular relates to an entity linking method based on knowledge-driven query. Background technique [0002] As conversational interfaces in web applications become more prevalent, interactions increasingly resemble natural language conversations, making natural language understanding a critical problem. Deep semantic understanding is necessary to improve the precision, context and personalization of information exchange in ubiquitous computing devices through natural language. Carrying out entity disambiguation research on user query data will help to accurately understand the real search intention of users and lay a foundation for the realization of semantic search. In addition, the user query data contains rich categories of entity referents, which provide strong entity support for the construction and update of knowledge graphs. [0003] However, compared with text data such ...

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Application Information

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IPC IPC(8): G06F16/28G06F40/295G06F40/284
CPCG06F16/288
Inventor 韩伟红徐菁陈雷霆孙燕刘妙玲
Owner INST OF ELECTRONICS & INFORMATION ENG OF UESTC IN GUANGDONG
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