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Standard answer-based knowledge point automatic extraction method and system

A standard answer and automatic extraction technology, applied in the field of knowledge extraction and automatic reasoning technology, can solve problems such as no reasoning mechanism and singleness, achieve high accuracy, good learning effect, and reduce human resource investment

Inactive Publication Date: 2017-09-15
林辉
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  • Claims
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Problems solved by technology

It can be seen that whether it is domestic or foreign, the application of "knowledge extraction" is limited to extracting the information people need from the text. Although there are related technologies for natural language understanding, there is no reasoning mechanism, which seems single

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  • Standard answer-based knowledge point automatic extraction method and system
  • Standard answer-based knowledge point automatic extraction method and system
  • Standard answer-based knowledge point automatic extraction method and system

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Embodiment Construction

[0048] The principles of the disclosure will now be described with reference to some example embodiments. It can be understood that these embodiments are described only for the purpose of illustrating and helping those skilled in the art to understand and implement the present disclosure, rather than suggesting any limitation to the scope of the present disclosure. The disclosure described herein may be implemented in various ways other than those described below.

[0049] As used herein, the term "comprising" and its variations may be understood as open-ended terms meaning "including but not limited to". The term "based on" may be understood as "based at least in part on". The term "one embodiment" can be read as "at least one embodiment". The term "another embodiment" may be understood as "at least one other embodiment".

[0050] Those skilled in the art can understand that named entity recognition is based on the interpretation of the NIST automatic content extraction ev...

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Abstract

The invention discloses a standard answer-based knowledge point automatic extraction method and system. The knowledge point automatic extraction method comprises the steps of performing natural language understanding on a topic and a corresponding standard answer, taking the result as a source knowledge set, putting the source knowledge set into an inference machine, and using drools rule engine training according to a rule base to obtain a knowledge base; and making comparison on each answering step in the standard answer according to the knowledge base in sequence, and extracting and marking knowledge points. According to the knowledge point automatic extraction method provided by the invention, natural language understanding and the automated reasoning technology are combined, production rule engine is adopted, and automatic marking of knonwlege points is realized by the computer.

Description

technical field [0001] The invention relates to the fields of automatic reasoning technology and knowledge extraction, in particular to an automatic extraction method and system for knowledge points based on standard answers. Background technique [0002] Knowledge extraction refers to the process of identifying, discovering and extracting concepts, types, facts and their correlations, constraint rules, and steps and rules for problem solving from digital resources. (Refer to "Analysis of Main Technical Methods of Current Knowledge Extraction", Zhang Zhixiong et al., Modern Library and Information Technology, Issue 8, 2008) At present, most of the knowledge point extraction focuses on designing automatic or semi-automatic algorithms, from unstructured and Extract structured information from semi-structured text, that is, extract knowledge from existing (natural language) documents. For example, Liu Xiaojuan of Beijing Normal University is researching the use of knowledge ex...

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Application Information

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IPC IPC(8): G06F17/30G06N5/04
Inventor 王庆先
Owner 林辉
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