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Method and device for determining entity answer, server and storage medium

A technology for determining methods and entities, applied in the Internet field, can solve problems such as insufficient comprehensiveness, limited coverage, and limited knowledge graphs

Inactive Publication Date: 2018-12-04
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing method for determining the first entity answer, because the existing knowledge graph is very limited, so the method for determining the first entity answer can only determine a very limited entity answer; the existing second entity question Determination method, due to the limited coverage of the hyponymy system, searching according to the hyponym system may ignore the entity words that match the intent type of the question, so the entity answer determined by the second entity answer determination method may not be enough comprehensive
In addition, the second entity answer determination method calculates the confidence of the answer based on the literal match between the context of the candidate answer and the question, and cannot consider the semantic information of the context, so the accuracy of the entity answer determined by the second entity answer determination method lower

Method used

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  • Method and device for determining entity answer, server and storage medium
  • Method and device for determining entity answer, server and storage medium
  • Method and device for determining entity answer, server and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0047] figure 1 It is a schematic flowchart of the method for determining the entity answer provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the method for determining the entity answer may include steps:

[0048] S101. Obtain the current substantive question and at least one substantive candidate answer sentence corresponding to the current substantive question.

[0049] In a specific embodiment of the present invention, the server may acquire the current substantive question and at least one substantive candidate answer corresponding to the current substantive question. Specifically, the server may retrieve at least one entity candidate answer corresponding to the current entity question in the entity question answering system.

[0050] S102. If the entity candidate answers satisfy the preset candidate conditions, extract the first candidate answer corresponding to the current entity question from at least one entity candidate answer.

[0051...

Embodiment 2

[0056] figure 2 A schematic flowchart of a method for determining an entity answer provided in Embodiment 2 of the present invention. Such as figure 2 As shown, the method for determining the entity answer may include the following steps:

[0057] S201. Obtain the current substantive question and at least one substantive candidate answer sentence corresponding to the current substantive question.

[0058] In a specific embodiment of the present invention, the server may acquire the current substantive question and at least one substantive candidate answer corresponding to the current substantive question. Specifically, the server may retrieve at least one entity candidate answer corresponding to the current entity question in the entity question answering system.

[0059] S202. Determine the answer sentence intent corresponding to each entity candidate answer sentence and the question intent corresponding to the current entity question.

[0060] In a specific embodiment ...

Embodiment 3

[0068] image 3 A schematic flowchart of a method for determining an entity answer provided in Embodiment 3 of the present invention. Such as image 3 As shown, the method for determining the entity answer may include the following steps:

[0069] S301. Obtain the current substantive question and at least one substantive candidate answer sentence corresponding to the current substantive question.

[0070] In a specific embodiment of the present invention, the server may acquire the current substantive question and at least one substantive candidate answer corresponding to the current substantive question. Specifically, the server may retrieve at least one entity candidate answer corresponding to the current entity question in the entity question answering system.

[0071] S302. Calculate the keyword vector corresponding to each entity candidate answer sentence and the intent word vector corresponding to the current entity question.

[0072] In a specific embodiment of the pr...

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PUM

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Abstract

Embodiments of the invention disclose a method and a device for determining entity answers, a server and a storage medium. The method comprises: obtaining a current entity question and at least one entity alternative answer sentence corresponding to the current entity question; extracting a first candidate answer corresponding to the current entity question in the at least one entity alternative answer sentence if the entity alternative answer sentence satisfies a preset candidate condition; determining a current entity answer corresponding to the current entity question according to the firstcandidate answer and a predetermined second candidate answer corresponding to the current entity question. The method can determine a more comprehensive and accurate entity answer, and can meet requirements of entity questions and answers of users.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of the Internet, and in particular to a method, a device, a server, and a storage medium for determining an entity answer. Background technique [0002] In the entity question answering system, the user can input entity questions in the search engine; then the search engine finds the entity answers corresponding to the entity questions; and presents the entity answers corresponding to the entity questions to the user. [0003] Existing methods for determining entity answers include the following two methods: first, methods for determining entity answers based on knowledge graphs. This method needs to first establish an accurate knowledge graph library; generate <question, answer> pairs from existing knowledge; determine the entity answer corresponding to the entity question according to each <question, answer> pair. Second, a determination method based on retrieved enti...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/27
CPCG06F40/295
Inventor 丁宇辰时迎超
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD