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Method and device for sentiment analysis of movie reviews

A sentiment analysis, movie technology, applied in the field of review analysis methods and devices, can solve the problem of low accuracy of movie reviews

Active Publication Date: 2020-07-24
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem of low accuracy in sentiment analysis of movie reviews using existing sentiment analysis methods

Method used

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  • Method and device for sentiment analysis of movie reviews
  • Method and device for sentiment analysis of movie reviews
  • Method and device for sentiment analysis of movie reviews

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0055] A method for sentiment analysis of movie reviews, including the following steps:

[0056] Step 1. Build a dictionary:

[0057] Build a basic sentiment dictionary:

[0058] Summarize the HowNet dictionary and the "Emotional Vocabulary Ontology" dictionary and remove duplicate entries;

[0059] The process of summarizing and removing duplicate entries is as follows:

[0060] Summarize and remove the positive words in HowNet and the repeated entries of the words marked with a polarity of 1 in the "Emotional Vocabulary Ontology" to form commendatory words in the basic emotional dictionary; sum up and remove the negative words in HowNet and the "Emotional Vocabulary Ontology" Marking the repeated entries of the words whose polarity is 2 constitutes the derogatory terms of the basic sentiment dictionary;

[0061] Manually screen the basic sentiment lexicon of the present invention's construction, and do not consider neutral words in the dictionary of the present invention'...

specific Embodiment approach 2

[0154] The process of adopting the SO-PMI algorithm to calculate each word in word1 as described in step 6 of the present embodiment is as follows:

[0155] For the i1th word in word1, use the following formula to calculate the SO-PMI value,

[0156]

[0157] word1 in the formula i1 is the word in the set word1, pword j1 is the word in the set pword, nword j2 is the words in the set nword; count(word1 i1 , pword j1 ) represents the word word1 for the current calculation i with a word pword in pword j1 The number of times it appears in a sentence at the same time, count(word1 i1 ,nword j2 ) for the currently calculated word word1 i1 with a word nword in nword j2 The number of times they appear together in a sentence; In a fixed corpus, a is a constant, preferably n1=n2; q represents a variable.

[0158] Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0160] A movie review sentiment analysis device, the device is used to implement the movie review sentiment analysis method described in the first or second specific embodiment.

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Abstract

The invention discloses a movie comment emotion analysis method and device, belongs to the field of data analysis, and particularly relates to a comment analysis method and device. The objective of the invention is to solve the problem of low accuracy in sentiment analysis of movie comments by using an existing sentiment analysis method. The method comprises the following steps: firstly, carryingout pretreatment such as word segmentation and syntactic analysis on film review corpora; Judging whether the words belong to words in a film review attribute feature word dictionary or not, inquiringand judging brother nodes of father nodes of the words, and obtaining the words corresponding to the nodes closest to the words in the sentences as emotion words; Traversing the W-SVM sentiment dictionary and the SO-VEC sentiment dictionary, and judging which category in the sentiment dictionary the emotional word belongs to, and recording the emotional value of the word; And finally updating theword sentiment value according to the negative word number between the word and the sentiment word; And finally, determining the movie review fine-grained emotion according to the word emotion values. The method is suitable for emotion analysis of movie comments.

Description

technical field [0001] The invention belongs to the field of data analysis, and in particular relates to a review analysis method and device. Background technique [0002] With the development of network technology, more and more Internet users like to watch movies, TV programs or enjoy music through the Internet, and general websites or clients will provide comment areas for users to comment. There are also some users who still choose to select seats and book tickets online, watch movies or enjoy music in physical venues such as movie theaters or concert halls. There are also some users who choose to directly purchase corresponding services in physical venues such as movie theaters or concert halls. Either way, many websites or clients will choose to provide a review mechanism about services and supply content, so that operators of websites or clients can collect information and know the real feelings of users. Data analysis screens and updates supply content in a targete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F40/211G06F40/247G06F40/289G06F40/284G06F16/35
CPCG06F40/211G06F40/247G06F40/284G06F40/289
Inventor 刘美玲尚月韩悦
Owner NORTHEAST FORESTRY UNIVERSITY
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