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Research on Evolution of Knowledge Category Structure in Wikipedia
Received date: 2014-03-05
Revised date: 2014-03-20
Online published: 2014-04-05
The structure formed by Wikipedia category page is one kind of new knowledge category structure for that it is spontaneous, self-organized and collaborative edited by people. So it has drawn many researchers' attention. Based on the characteristics of Wikipedia category page, we defined this structure as category structure of domain knowledge, in which Wikipedia category page corresponds to a node, while relationships between these nodes are expressed as edges. By using the model of diversity entropy based on self-avoiding random walks, we got the value of nodes and identified the central nodes and the frontier nodes in the category of domain knowledge. These could help us study the evolution of nodes. The result shows that in most cases, the higher value of diversity entropy the node is, the more likely it will be central node and the longer it has been created. And for the relationships between these nodes in the same community structure, the value of diversity entropy of these nodes shows the similar variation trend. The research in this paper could help us know about development situation and hot areas of domain knowledge, and improve the knowledge category in Wikipedia, which could promote the innovation of knowledge.
Xu Shengguo , Liu Xu . Research on Evolution of Knowledge Category Structure in Wikipedia[J]. Library and Information Service, 2014 , 58(07) : 119 -124 . DOI: 10.13266/j.issn.0252-3116.2014.07.020
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