QUERY ROUTING IN A PEER‐TO‐PEER SEMANTIC LINK NETWORK
QUERY ROUTING IN A PEER‐TO‐PEER SEMANTIC LINK NETWORK
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DOI：
10.1111/j.0824-7935.2005.00271.x
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发表时间：
2005-05
影响因子：
2.8
通讯作者：
H. Zhuge;Jie Liu;Liang Feng;Xiaoping Sun;Chao He
中科院分区：
文献类型：
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作者：
H. Zhuge;Jie Liu;Liang Feng;Xiaoping Sun;Chao He
语义链对等(P2P)网络规定和管理节点之间的语义关系，可用作可扩展知识网格的语义层。该方法包括自动语义链发现方法、P2P语义链网络的构建和维护工具、基于语义的节点相似度度量算法和用于查询重构和异构数据集成的模式映射算法。建议的方法有三个重要方面。首先，它使用语义链接来丰富节点之间的数据模式之间的关系。其次，在度量模式之间的相似度时，不仅考虑了节点，还考虑了XML结构，从而高效、准确地将查询转发到相关节点。第三，它解决了语义和结构的异构性以及数据的不一致性，使得对等节点可以在统一的视图中交换和转换异类信息。
A semantic link peer‐to‐peer (P2P) network specifies and manages semantic relationships between peers' data schemas and can be used as the semantic layer of a scalable Knowledge Grid. The proposed approach consists of an automatic semantic link discovery method, a tool for building and maintaining P2P semantic link networks (P2PSLNs), a semantic‐based peer similarity measurement for efficient query routing, and the schema mapping algorithms for query reformulation and heterogeneous data integration. The proposed approach has three important aspects. First, it uses semantic links to enrich the relationships between peers' data schemas. Second, it considers not only nodes but also the XML structure in measuring the similarity between schemas to efficiently and accurately forward queries to relevant peers. Third, it copes with semantic and structural heterogeneity and data inconsistency so that peers can exchange and translate heterogeneous information within a uniform view.