PS-Tree: A path-based semantic document indexing - 文章详情页

作者：

Fang, Li-Ying (Fang, Li-Ying.) | Shi, Bin (Shi, Bin.) | Yan, Jian-Zhuo (Yan, Jian-Zhuo.) | Wang, Pu (Wang, Pu.)

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摘要：

In　order　to　resolve　the　issue　of　containing　query　with　a　node　set　formed　by　multi-keywords,　this　paper　proposes　an　index　structure,　named　PS-Tree,　and　applies　it　to　a　semantic　search　engine.　The　PS-Tree　refers　to　a　set　attribute　index　of　object-orient　database.　It　can　map　user＇s　query　to　a　semantic　path　which　contains　semantic　relations　as　the　aim　of　user＇s　query　in　form　of　multi-keywords　by　＇range　query＇.　It　can　improve　the　performance　of　index　structure.　The　experiment　result　shows　that　the　PS-Tree　gives　a　good　performance　especially　when　there　is　a　long　semantic　distance　between　the　query　keywords.

关键词：

Forestry Indexing (of information) Query processing Search engines Semantic Web Trees (mathematics)

作者机构：

[ 1 ] [Fang, Li-Ying]College of Electronic Information and Control, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Shi, Bin]Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
[ 3 ] [Yan, Jian-Zhuo]College of Electronic Information and Control, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wang, Pu]College of Electronic Information and Control, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

fangliying@bjut.edu.cn

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