Evolution analysis device and method for contents of network topics

Abstract

The invention provides an evolution analysis device and an evolution analysis method for the contents of network topics. The evolution analysis device for the contents of the network topics comprises a network event data collection device, a network event data pretreatment device, a topic content evolution analysis device and an output device. The evolution analysis method for the contents of the network topics includes the steps of network event data collection, network event pretreatment, similarity calculation, topic multi-center establishment, topic center renewal and output. A plurality of aspects of the contents corresponding to the topic can be found by the invention, and a multi-center structure is used for establishing a corresponding topic model so as to more accurately and comprehensively describe the topics; the dynamic evolution and development process of the contents of the topics can be displayed by the establishment and the renewal of the multi-centers of the topics, namely the whole process of generation, development, climax and ending of the topics. The method of the invention does not depend on the processing sequence of report, and can adapt to the circumstance of cross occurrence of news reports with different emphasises.

Description

(1) Technical field [0001] The present invention relates to a technology that uses computer technology to assist intelligent analysis of network information or management of network public opinion, and particularly relates to a system and method for analyzing the dynamic evolution of network topic content using natural language processing technology and data mining technology, specifically A system and method capable of accurately presenting the dynamic evolution process of network topic content. (2) Background technology [0002] With the development of information technology, especially the rapid development of Internet technology, which has changed the way people obtain and exchange information, a new form of expression of public opinion - Internet public opinion has emerged. Internet public opinion refers to the sum of opinions expressed by the public (netizens) on some public affairs or focus issues through Internet platforms, Internet language or other means. Compared...

AI Technical Summary

Problems solved by technology

The topic models proposed so far are difficult to describe the multi-faceted nature of the topic, and cannot fully present the topic during the evolution process

[0011] 2. Topic model establishment: The existing technical methods only use the traditional clustering method to process news reports belonging to the same topic, which cannot reflect the internal dynamic development process of the topic

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