Extracting method and device for evaluating object

A technology for evaluating objects and extracting methods, applied in the field of data analysis to achieve the effect of improving accuracy

Active Publication Date: 2018-01-05
BEIJING QIYI CENTURY SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides a method for extracting evaluation objects to solve the problem of how to accurately extract evaluation objects of related products from corpus so as to perform subsequent fine-grained sentiment analysis and fully tap the value of review information

Method used

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  • Extracting method and device for evaluating object
  • Extracting method and device for evaluating object
  • Extracting method and device for evaluating object

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] Such as figure 1 The shown is a flow chart of Embodiment 1 of an evaluation object extraction method provided by the present invention, and the method can be applied to an electronic device.

[0061] This method can specifically be realized through the following steps:

[0062] Step S101: traversing the corpus to obtain nouns and adjectives in the corpus;

[0063] Wherein, the corpus includes all comment information in the preset corpus. For example,...

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Abstract

The invention provides an extracting method and device for evaluating an object. The extracting method comprises the steps of traversing a corpus, wherein nouns and adjectives in the corpus are obtained; generating a dependence relation matrix according to the obtained nouns and adjectives; calculating vectors of each adjective and vectors of each noun in the dependence relation matrix according to a preset vector calculation method; expanding the dependence relation matrix according to the vectors of the adjectives and the vectors of the nouns, wherein the nouns of the filled dependency relation are to-be-extracted evaluation objects. According to the technical scheme, dependence relation information in the corpus is considered, the conception and the configuration method of the dependence matrix are put forward, based on a factorization method, the extracting process has a certain inferential capability, and the accuracy of extracting the evaluation objects of relevant products fromthe corpus is improved.

Description

technical field [0001] The present invention relates to the field of data analysis, and more specifically, relates to a method and device for extracting evaluation objects. Background technique [0002] With the continuous popularization of social networks and mobile Internet, the cost for people to publish information is getting lower and lower, and more and more users are willing to share their opinions and comments on people, events, and products on the Internet. These comments reflect people's views and emotional tendencies on things, which are of great significance for public opinion analysis and prediction based on big data. Therefore, sentiment analysis technology emerged at the historic moment. Sentiment analysis is also called opinion mining and opinion analysis. sex, etc.) to represent. [0003] Traditional sentiment analysis mainly focuses on the overall emotional polarity of a comment. However, the overall emotional polarity is often coarse-grained, and users c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27G06F17/30G06Q50/00
Inventor 沈一鲍新平
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD
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