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Keyword extraction method and keyword extraction device

An extraction method and technology of an extraction device, which are applied in the field of text processing, can solve the problem of low keyword extraction accuracy, and achieve the effects of solving the low accuracy and improving the accuracy.

Active Publication Date: 2021-05-07
TENCENT TECH (SHENZHEN) CO LTD
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AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a keyword extraction method and a keyword extraction device with high keyword extraction accuracy to solve the low keyword extraction accuracy of existing keyword extraction methods and keyword extraction devices question

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  • Keyword extraction method and keyword extraction device
  • Keyword extraction method and keyword extraction device
  • Keyword extraction method and keyword extraction device

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Embodiment Construction

[0030] Referring to the drawings, wherein like reference numerals represent like components, the principles of the present invention are exemplified when implemented in a suitable computing environment. The following description is based on illustrated specific embodiments of the invention, which should not be construed as limiting other specific embodiments of the invention not described in detail herein.

[0031] In the following description, specific embodiments of the present invention are described with reference to steps and symbols for operations performed by one or more computers, unless otherwise stated. Accordingly, it will be understood that the steps and operations, which at times are referred to as being performed by a computer, include manipulation by a computer processing unit of electronic signals representing data in a structured form. This manipulation transforms the data or maintains it at a location in the computer's memory system that can reconfigure or ot...

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Abstract

The present invention provides a keyword extraction method, which includes: performing a word segmentation operation on all the analysis sentences of the extracted text to obtain word units of the analysis sentences; acquiring word features of the word units, sentence features of the word units in the corresponding analysis sentences, and the text features of the word unit in the extracted text; based on the machine learning model established by the machine learning algorithm, using the word feature, sentence feature and text feature of the word unit in each analysis sentence, keyword analysis is carried out for each analysis sentence Fetch operation. The present invention also provides a keyword extraction device. The keyword extraction method and the keyword extraction device of the present invention use the word features, sentence features and text features of the word unit to establish a machine learning model, thereby performing keyword extraction for each analysis sentence operation, thereby improving the accuracy of keyword extraction.

Description

technical field [0001] The invention relates to the field of text processing, in particular to a keyword extraction method and a keyword extraction device. Background technique [0002] With the development of the information age, the ways of expressing information are becoming more and more diverse, and the way of expressing information by using text is irreplaceable. With the development of the network, the amount of online text information is growing explosively, and it is increasingly difficult to manually obtain the required text information. Therefore, how to efficiently obtain information has become a very important issue. [0003] In order to effectively process massive text data, researchers have done a lot of research in the directions of text classification, text clustering, automatic summarization and information retrieval, and these studies all involve a key and basic problem, that is, how to obtain keywords in the text. Therefore, in tasks such as natural lan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F40/289G06F16/33
CPCG06F16/3334G06F40/289
Inventor 王煦祥尹庆宇
Owner TENCENT TECH (SHENZHEN) CO LTD
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