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Method and device for classifying cross domain viewpoint data

A classification method and cross-field technology, applied in the direction of electrical digital data processing, special data processing applications, character and pattern recognition, etc., can solve the problem of inaccurate classification results and achieve the effect of improving accuracy

Active Publication Date: 2015-11-25
INST OF AUTOMATION CHINESE ACAD OF SCI +1
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  • Application Information

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Problems solved by technology

[0005] When related technologies classify cross-domain opinion data, since the selected source domain and target domain do not necessarily have clear domain-specific words and domain-independent words, the results of related technologies for classifying cross-domain opinion data are not accurate. accurate

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  • Method and device for classifying cross domain viewpoint data
  • Method and device for classifying cross domain viewpoint data
  • Method and device for classifying cross domain viewpoint data

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] With the development of Internet technology, opinion data sharing has become a development trend in today's society. Since the opinion data in different fields is of great significance to guide the production practice of users, and the number and types of opinion data on the Internet are large, it is necessary to classify different opinion data on the Internet. To this end, the embodiment of the present invention provides a classification method for cross-domain opinion data, see figure 1 , the method flow provided by this embodiment includes:

[0036] 101: Obtain a shared topic matrix according to the shared topics of the source domain and the target domain, and respectively obtain a domain-specific topic matrix of the source ...

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Abstract

The invention discloses a method and device for classifying cross domain viewpoint data, and belongs to the technical field of the Internet. The method comprises: obtaining a shared topic matrix according to a shared topic of a source domain and a target domain, and respectively obtaining a specific domain topic matrix of the source domain and a specific domain topic matrix of the target domain according to a specific domain topic of the source domain and a specific topic of the target domain; determining an objective function of the source domain, and determining an objective function of the target domain; determining a total objective function according to the objective function of the source domain and the objective function of the target domain; determining convergency values of parameters in the total objective function, and obtaining classification functions according to the convergency values of the parameters in the total objective function; and classifying the viewpoint data of the target domain according to the classification functions. According to the method and the device disclosed by the invention, the cross domain viewpoint data are classified according to the classification functions obtained by the shared topic matrix, and since the shared topic matrix can reduce the difference of different domains, the classification precision of the cross domain viewpoint data is improved.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a method and device for classifying cross-domain opinion data. Background technique [0002] With the development of Internet technology, more and more opinion data about user opinions are shared online, and these opinion data exist in the form of user comments, blog articles, user feedback, etc. on shopping websites. Since the opinion data on the Internet involves different fields, and the opinion data in different fields is of great significance to guide the production practice of users in different fields, it is necessary to obtain the opinion data in different fields for research. Due to the large amount of data on the Internet, it is difficult to label data in each field on the Internet. Therefore, how to classify cross-domain opinion data becomes the key to obtaining opinion data in different fields. [0003] Taking the SFA (Spectral Feature Alignment, Spectral Featur...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06K9/66
Inventor 周光有薛伟王巨宏
Owner INST OF AUTOMATION CHINESE ACAD OF SCI