Method and system for topic keyword self-adaptive expansion on social network platform

Abstract

The invention discloses a method and a system for topic keyword self-adaptive expansion on a social network platform. According to the method and the system for the topic keyword self-adaptive expansion on the social network platform, implicit keywords and keywords of relevant topics are extracted to build a keyword expansion vocabulary through the analysis of the correlation among social network information contents. The method includes the following steps: labeling a small amount of keywords to build a seed keyword vocabulary, collecting sample information to build a corpus through incremental self-feedback, obtaining word frequency through the sample information, obtaining relevant words which have high correlation with the seed keywords through the word frequency and multi-layer filtering algorithm, and selecting suitable words and adding the words to the keyword expansion vocabulary. The method and the system for the topic keyword self-adaptive expansion on the social network platform are different from a traditional webpage class keyword expansion mechanism, and are based on the characteristics of the social network information contents, and have higher flexibility and self-adaptivity to the selection of the keywords.

Description

technical field [0001] The present invention relates to the field of social networks, in particular to a method and system for adaptively expanding topic keywords on a social network platform. Background technique [0002] In the era of Web 2.0, social networks have increasingly become an important part of people's network life. Social network is an information sharing, dissemination and acquisition platform based on user relationships. Users can update information in about 140 characters through WEB, WAP and various client-side component personal communities, and realize instant sharing. From foreign twitter to domestic Sina, the technical threshold for users is very low. At the same time, the existence of social network APIs allows users to log in to social networks and post messages on various mobile terminals, which also accelerates the development of social networks. [0003] Keyword-based information search is an important means for users to find network information a...

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Problems solved by technology

[0005] Chinese patent application number 201010545864.3 and publication number 101986310A discloses a method for updating a dictionary of online terms. Vocabulary to collect new Internet terms, this patented method is more effective for acquiring the latest buzzwords, but it cannot solve the problem of collecting words related or implicitly related to a certain topic

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