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Public opinion positive and negative classification method

A classification method and public opinion technology, applied in the field of information security, can solve problems such as the complexity of Chinese language and the deviation of classification results

Pending Publication Date: 2020-10-27
民生科技有限责任公司
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Problems solved by technology

In addition, the complexity of the Chinese language and contextual problems also cause large deviations in the classification results

Method used

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  • Public opinion positive and negative classification method
  • Public opinion positive and negative classification method
  • Public opinion positive and negative classification method

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Experimental program
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Effect test

Embodiment

[0095] The overall structure of the present invention is shown as figure 1 Shown.

[0096] The public opinion analysis method for the financial field disclosed in the present invention includes the following steps:

[0097] First, crawl a large amount of financial news from major financial websites, and clean and preprocess the data, including the processing plan:

[0098] Perform md5 compression encoding on the title and URL to remove the same news;

[0099] Calculate the simhash value of the content, calculate the edit distance between each other, and remove duplicate news with high similarity;

[0100] Convert emoji text into ordinary text, such as: Converted to':thumbs_up:';

[0101] Replace consecutive spaces with commas;

[0102] Delete special symbols with abnormal format;

[0103] Then, the unsupervised sentiment classification method is adopted, that is, the existing sentiment dictionary is supplemented with the crawled financial news, and an sentiment dictionary that is more in...

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Abstract

The invention relates to a public opinion positive and negative classification method, and belongs to the technical field of information security. The method comprises the steps of collecting and preprocessing public opinion data in a target field, wherein the public opinion data comprises a plurality of public opinion articles; constructing a target domain emotion dictionary based on the BosonNLPemotion dictionary; obtaining emotion tendency scores of the public opinion articles through the target domain emotion dictionary, and judging positive and negative public opinion articles accordingto the emotion tendency scores; utilizing the public opinion data judged as the negative public opinion articles to construct a wrong score correction model; and performing positive and negative classification on the public opinion data by utilizing the error correction model.

Description

Technical field [0001] The present invention relates to the technical field of information security, in particular to a method for categorizing positive and negative public opinions. Background technique [0002] Public opinion is the abbreviation of "public opinion situation", which refers to the occurrence, development and change of intermediary social events in a certain social space, and the public as the subject to the social managers, enterprises, individuals and other various organizations as the objects And its political, social, ethical and other aspects of social attitudes. It is the sum of the beliefs, attitudes, opinions and emotions expressed by more people about various phenomena and problems in society. [0003] With the rapid development of the Internet, network media has become a new form of information dissemination. Netizens’ active speech has reached an unprecedented level. Whether it is a major domestic or international event, online public opinion can be for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/35G06F40/242G06F40/289G06F40/216G06F16/951G06F16/955
CPCG06F16/35G06F40/242G06F40/289G06F40/216G06F16/951G06F16/955Y02D10/00
Inventor 李振刘恒杜昭慧冯一徐元义魏华丁晓强
Owner 民生科技有限责任公司
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