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A Chinese sentiment analysis method and system

A technology of sentiment analysis and emotion, applied in the field of sentiment analysis, can solve problems such as the lack of delicateness in analyzing emotions, and achieve the effect of improving accuracy

Active Publication Date: 2021-01-26
SHENZHEN LAN YOU TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method temporarily improves the accuracy rate based on a large number of training sets, which is generally about 75%, the work of labeling the training set is so voluminous that users are discouraged; in addition, the granularity of the manual labeling training set leads to this method. The ability to analyze emotional delicacy, or weak ability

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  • A Chinese sentiment analysis method and system
  • A Chinese sentiment analysis method and system
  • A Chinese sentiment analysis method and system

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Embodiment 1

[0045]This embodiment provides a Chinese sentiment analysis method, such asfigure 1 As shown, the method includes the following steps:

[0046]S101. Obtain all emotional words in the Chinese sentence, and acquire the positive emotional weight and the negative emotional weight of each emotional word.

[0047]First, we have a weighted sentiment dictionary. Each sentiment word in the weighted sentiment dictionary is marked with a positive sentiment weight and a negative sentiment weight. In this way, when the sentiment word is obtained, we can get the sentiment word matrix about the sentiment word (Include emotional words, and the positive and negative emotional weights corresponding to the emotional words).

[0048]S102: Obtain an adverb corresponding to each emotional word from the Chinese sentence, and acquire the weight of the corresponding adverb, and modify the positive emotional weight or the negative emotional weight of the emotional word according to the weight of the corresponding adv...

Embodiment 2

[0056]The Chinese sentiment analysis method provided by the embodiment of the present invention supplements the steps and content on the basis of the first embodiment. For the details of the present embodiment, please refer to the first embodiment.

[0057]Such asfigure 2 As shown, the Chinese sentiment analysis method includes the following steps:

[0058]S100. Construct a weighted emotion dictionary in advance; the weighted emotion dictionary includes emotion words and positive emotion weights and negative emotion weights corresponding to the emotion words.

[0059]With the evolution of Chinese, sentiment words are still increasing. In the process of text analysis, we have accumulated a large number of sentiment words and built a weighted sentiment dictionary, including about 20,000 Chinese sentiment words. The original sentiment dictionary is as follows Table 1 only arbitrarily divides emotional vocabulary into positive emotional inclination and negative emotional inclination. In addition...

Embodiment 3

[0091]The Chinese sentiment analysis system provided by the embodiment of the present invention corresponds to the method in the first embodiment. For the details of the present embodiment, please refer to the first embodiment.

[0092]referenceimage 3 , A Chinese sentiment analysis system, including the following modules:

[0093]The first obtaining module 101 is used to obtain all the emotional words in the Chinese sentence, and obtain the positive emotional weight and the negative emotional weight of each emotional word.

[0094]The second acquiring module 102 is configured to acquire the adverb corresponding to each emotional word from the Chinese sentence, and acquire the weight of the corresponding adverb.

[0095]The modification module 103 is used to modify the positive emotion weight or the negative emotion weight of the emotion word according to the weight of the corresponding adverb.

[0096]The third obtaining module 104 is configured to obtain a negative word corresponding to each emo...

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Abstract

The present invention provides a Chinese emotion analysis method and system. The method includes: obtaining all emotional words in Chinese sentences, and obtaining the positive and negative emotional weights of each emotional word; obtaining each emotional weight from the Chinese sentence The adverb corresponding to each emotion word, and obtain the weight of corresponding adverb, modify the positive emotion weight or the negative emotion weight of emotion word according to the weight of corresponding adverb; Obtain the negative word corresponding to each emotion word from described Chinese sentence , adjust the modified positive sentiment weight and negative sentiment weight according to the number of negative words; calculate the sentiment score according to the positive sentiment weight and negative sentiment weight adjusted by the corresponding adverb weight and the number of negative words of all sentiment words , to obtain the emotional tendency of the Chinese sentence. The present invention considers the adverbs corresponding to the emotional words when analyzing the emotional tendency of the Chinese sentence, has the ability to analyze the delicateness of the emotion, considers the negative words, and improves the accuracy of the emotional analysis.

Description

Technical field[0001]The invention relates to the technical field of sentiment analysis, and more specifically, to a Chinese sentiment analysis method and system.Background technique[0002]The so-called sentiment analysis of a text is to analyze the sentiment tendency of a text (mainly Chinese). As the basic work of public opinion monitoring, it naturally has many uses. Social networks have become more popular, with more and more famous blogs or opinion leaders, and sites that allow users to rate products and services have sprung up. User reviews and suggestions can be spread across the Internet. There is no doubt about these text-type data. It is the power source of precision marketing. Companies can build their own digital image based on sentiment analysis, identify new market opportunities, do a good job in market segmentation, and then promote the successful listing of products; but seizing the value of these comments is also a huge challenge for companies; The government, like t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F40/205
CPCG06F40/205
Inventor 宋云生
Owner SHENZHEN LAN YOU TECH