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Construction method and device of user knowledge concept network and evaluation method of user knowledge

A concept and user technology, applied in the field of natural language processing, can solve problems such as inaccurate evaluation results

Active Publication Date: 2021-06-01
武汉渔见晚科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a method and device for constructing a user knowledge concept network, and a method for evaluating user knowledge, so as to solve or at least partially solve the technical problem that the evaluation results of the methods in the prior art are not accurate enough

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  • Construction method and device of user knowledge concept network and evaluation method of user knowledge
  • Construction method and device of user knowledge concept network and evaluation method of user knowledge
  • Construction method and device of user knowledge concept network and evaluation method of user knowledge

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Embodiment 1

[0063] This embodiment provides a method for constructing a user knowledge concept network, please refer to figure 1 , the method includes:

[0064] Step S1: Perform preprocessing on each text included in the text collection containing m independent texts, and obtain all sentences and vocabulary of the corpus composed of m independent texts, where m is a positive integer.

[0065] Specifically, the number of m can be determined according to actual conditions. Preprocessing includes steps such as sentence segmentation, word segmentation, and removal of stop words.

[0066] Step S2: Use each vocabulary in the corpus as a concept keyword, traverse all sentences and vocabulary, and include the words that appear together in the same sentence with the concept keyword into the vocabulary set corresponding to the concept keyword, where the vocabulary set includes Conceptual headings and lexical elements.

[0067] Specifically, step S1 can get all the vocabulary of the corpus, and t...

Embodiment 2

[0091] Based on the same inventive concept, this embodiment provides a device for constructing a user knowledge concept network, please refer to figure 2 ,include:

[0092] The preprocessing module 201 is used to preprocess each text contained in the text collection containing m independent texts, and obtain all sentences and vocabulary of the corpus composed of m independent texts, where m is a positive integer;

[0093] The vocabulary set construction module 202 is used to use each vocabulary of the corpus as a concept keyword, traverse all sentences and vocabulary, and include vocabulary that co-occurs with the concept keyword in the same sentence into the vocabulary set corresponding to the concept keyword, Among them, the vocabulary set includes concept keywords and vocabulary elements;

[0094] The concept library construction module 203 is used to filter vocabulary elements for each vocabulary set to build a concept library;

[0095] A domain division module 204, con...

Embodiment 3

[0113] Based on the same inventive concept, this application also provides a user knowledge evaluation method, which is implemented based on the construction method of the user knowledge concept network described in Embodiment 1. The evaluation method includes:

[0114] The constructed user knowledge concept network is evaluated from three dimensions of network clustering coefficient, average path length and structural entropy.

[0115] In one embodiment, the constructed user knowledge concept network is evaluated from three dimensions of network clustering coefficient, average path length and structural entropy, including:

[0116] According to the clustering coefficient of the network, the user's thinking activity is evaluated, and the calculation method of the clustering coefficient is:

[0117]

[0118] Among them, C represents the clustering coefficient of the user knowledge network, and C i Represents the clustering coefficient of each node in the user knowledge netw...

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Abstract

The invention discloses a construction method and device of a user knowledge concept network and an evaluation method of user knowledge.The construction method of the user knowledge concept network comprises the steps that firstly, each text contained in a text set containing m independent texts is preprocessed, and then each vocabulary of corpus serves as a concept subject term; all sentences and vocabularies are traversed, vocabularies appearing together with the concept subject terms in the same sentence are included into vocabulary sets corresponding to the concept subject terms, then vocabulary element screening is conducted on each vocabulary set, and a concept library is constructed; the field division is performed on concepts contained in the concept library by adopting a hierarchical clustering method; then, according to the matching condition of vocabularies contained in the user text data and a concept library, concepts contained in the user text data are obtained; and finally, a user knowledge concept network is constructed according to the concepts contained in the user text data and the divided concept fields. According to the method, the accuracy and objectivity of evaluation can be improved.

Description

technical field [0001] The invention relates to the technical field of natural language processing, in particular to a method and device for constructing a user knowledge concept network, and a method for evaluating user knowledge. Background technique [0002] The evaluation of people's knowledge innovation ability has great application potential and value. However, the current evaluation of user knowledge is still inseparable from the measurement of the question answering system represented by questionnaires and examination papers. Since the question answering system is difficult to balance in terms of flexibility and objectivity in terms of content and topic selection, if the questions of the question answering system A unified content guarantees objectivity but lacks flexibility; and if the content of the question answering system is diverse, then flexibility is guaranteed but it is difficult to objectively and consistently judge the results. At the same time, the quest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/35G06F16/36G06F40/284
CPCG06F16/35G06F16/367
Inventor 刘垚邹更任钰欣黄梓杰
Owner 武汉渔见晚科技有限责任公司
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