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Network criticism oriented viewpoint subject identifying method and system

A technology for online reviews and identification methods, which is applied in the field of opinion topic identification methods and systems for online reviews, can solve problems such as the limitation of opinion analysis and cannot be extended, and achieve the effect of overcoming field limitations.

Inactive Publication Date: 2010-06-09
THE PLA INFORMATION ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The opinion topic identification in the above method is realized by querying the constructed feature ontology library, so that the opinion analysis is limited to this specific field and cannot be expanded.

Method used

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  • Network criticism oriented viewpoint subject identifying method and system
  • Network criticism oriented viewpoint subject identifying method and system
  • Network criticism oriented viewpoint subject identifying method and system

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Embodiment 1

[0033] This embodiment describes the relevant knowledge generated by online comments, and considers that the publication of subjective comments is caused by a source event, such as news in online news comments, the first post in a forum, product information or product attributes in product reviews Lists, etc., which are collectively referred to here as review sources. Generally, people browse the comment sources they follow and express their subjective opinions, so it can be considered that the comment sources are the triggers of online comments.

[0034] This embodiment analyzes the review source, and identifies the subject words in the review source that are concerned by the reviewers; then constructs candidate viewpoint topics according to the position-related association rule mining algorithm; and finally filters candidate topics that do not meet the requirements through the formulated rules. Such as figure 1 As shown, the steps of this embodiment to realize the method fo...

Embodiment 2

[0055] In this embodiment, it is considered that in actual situations, the topics of opinions in network reviews are not only from review sources, but reviewers will also propose topics related to the review sources. Based on the above facts, this embodiment divides the opinion topics of network comments into two categories: comment*, the opinion topics appear in the comment sources; comment #, the opinion topics do not appear in the comment sources, but are proposed by the reviewers.

[0056] This embodiment not only considers opinion topics in the review feed, but also identifies recurring opinion topics in the reviews. At the same time, add two basic semantic lexicons—synonym forest, to overcome the problem of topic dispersion caused by synonyms; and emotional thesaurus, to more accurately judge the sentence where the topic of the opinion is located.

[0057] After identifying the opinion topics of online comments, determining the relationship between the topics will facili...

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Abstract

The invention discloses network criticism oriented viewpoint subject identifying method and system. The method comprises the following steps of: a. text inputting: inputting a criticism source and all criticism texts; b. text preprocessing: carrying out word division and speech part marking on the input texts, removing stop words, punctuations and specific empty words and calculating the word frequency information of the words; c. subject word judgment: calculating a word weight value, and if the word weight value is larger than a set threshold value, judging that a subject word is a viewpoint subject word; d. subject constructing: combining scattered viewpoint subject words into an integrated viewpoint subject; e. subject screening: confirming an effective viewpoint subject by filtering the viewpoint subject. The invention overcomes the field limitation of viewpoint analyzing method and system, identifies the viewpoint subject in a whole angle without constructing a body library, effectively overcomes the difficulty existing in single-sentence viewpoint analysis and automatically identifies the viewpoint subject in a phrase mode of a wide field and network criticism data which are dynamically changed along with the time.

Description

technical field [0001] The invention relates to the technical fields of data mining, machine learning, and Chinese information processing, in particular to a method and system for identifying an opinion topic for network comments. Background technique [0002] At present, with the development and popularization of information communication technology, the Internet has become an important channel for people to obtain information in today's society. The fast and convenient features of the Internet, as well as its powerful interactive capabilities, provide a new platform for people to exchange ideas, clarify opinions, and express opinions. Through the Internet, people express influential and tendentious opinions or speeches on social public affairs, especially social hot issues, and the analysis of opinions on such texts has extensive practical value. However, there are many topics that people can talk about on the Internet, and the topic of opinions in online comments will ch...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/27
Inventor 李弼程周杰林琛陈刚李真
Owner THE PLA INFORMATION ENG UNIV
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