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A text automatic classification method and system based on sample keyword learning and a medium

An automatic classification and keyword technology, applied in neural learning methods, special data processing applications, instruments, etc., can solve the problems of low text accuracy, no use value, slow data, etc., to save manpower and material resources, improve information retrieval accuracy and speed effect

Pending Publication Date: 2018-12-14
SHANDONG NORMAL UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many technologies involved in text classification, such as KNN, singular value decomposition and maximum entropy classifier, etc., but they all have some problems, such as the classification data is relatively slow, and the classification accuracy is low, and the text accuracy is low. use value

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  • A text automatic classification method and system based on sample keyword learning and a medium

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Embodiment Construction

[0028] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0029] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0030] As introduced in the background technology, in order to solve the above problems, the present invention p...

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Abstract

The invention discloses a text automatic classification method and system based on sample keyword learning and a medium. The invention utilizes a multi-mark learning technology to learn semantic association relations of texts in various domains in a sample set, automatically extracts screening keywords and information judging keywords in corresponding domains, and carries out text classification.The method can be applied to the retrieval of heterogeneous multimedia objects, and the extracted screening keywords are used to screen the corresponding domain-related documents in the massive information of the regulatory business system, and the screening results have a high recall rate. The information determination keyword is used to determine information in the corresponding domain document,and the determination result has high recall rate and high accuracy. Finally, the recall rate and the accuracy rate are used to verify the effectiveness of the invention.

Description

technical field [0001] The present invention relates to the technical field of machine learning and data mining, in particular to an automatic text classification method, system and medium based on sample keyword learning. Background technique [0002] In today's information age, the network is developing rapidly, and the amount of information on the Internet is increasing explosively. The Internet has become the largest information resource pool in the world, and has gradually become an important way for people to obtain various information resources. In this context, a large number of news websites, commodity websites, and microblogs have emerged as the times require, and huge amounts of text information are generated every day. Faced with such a large amount of text data, how to accurately classify text information, how to effectively organize and manage this information, and at the same time quickly and accurately find the information users need is a difficult problem in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06N3/08
CPCG06N3/08
Inventor 刘丽刘怀泉张龙李晓双陈思琦
Owner SHANDONG NORMAL UNIV