收稿日期: 2014-09-03
修回日期: 2014-10-22
网络出版日期: 2014-11-20
Research on Semantic Retrieval Model for Improved Library Based on P2P
Received date: 2014-09-03
Revised date: 2014-10-22
Online published: 2014-11-20
黄婷 . 基于P2P的改进型图书馆语义检索模型研究[J]. 图书情报工作, 2014 , 58(22) : 125 -129 . DOI: 10.13266/j.issn.0252-3116.2014.22.020
This paper proposes a model of cache-based distributed semantic information retrieval system based on P2P network. When the residual load capacity of a node in the network reaches a threshold, it will become the center node and form a topology area with the nearby nodes together. The center node stores the resource information list of the local node to develop the index cache, and sends it to the nodes belonging to each topology area. At the same time, the overheating resources will be established content caching and copied to local by contents cache. Each node in this model entities path information for retrieval resources and the center node stores the popular resources, which can be used to significantly improve the ratio of retrieval and reduce resource consumption.
Key words： P2P network; library; semantic information retrieval; Toplogy
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