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首页> 外文期刊>WSEAS Transactions on Communications >EST-Grid: An Efficient Scalable Peer-to-Peer Infrastructure for Web Service Discovery
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EST-Grid: An Efficient Scalable Peer-to-Peer Infrastructure for Web Service Discovery

机译:EST-Grid:用于Web服务发现的高效可扩展对等基础架构

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摘要

Web services are becoming an important enabler of the Semantic Web. In this paper, we present a new P2P infrastructure for Web Services discovery. Peers that store Web Services information, such as data item, descriptions, are efficiently located using a scalable and robust data indexing structure for Peer-to-Peer data networks, EST-GRID (Exponential Search Tree). EST-GRID provides support for processing Exact match Queries of the form "given a key, map the key onto a node". EST-GRID adapts efficiently update queries as nodes join and leave the system, and can answer queries even if the system is continuously changing. Results from theoretical analysis show that the communication cost of the query and update operations scaling both in O((log_n){sup}(-2)) time where n the number of nodes.
机译:Web服务正在成为语义Web的重要推动者。在本文中,我们提出了一种用于Web服务发现的新的P2P基础结构。使用用于点对点数据网络EST-GRID(指数搜索树)的可伸缩且健壮的数据索引结构,可以有效地定位存储Web服务信息(例如数据项,描述)的对等点。 EST-GRID支持处理“给定密钥,将密钥映射到节点”形式的精确匹配查询。 EST-GRID可以在节点加入和离开系统时有效地适应更新查询,即使系统不断变化,它也可以回答查询。理论分析的结果表明,查询和更新操作的通信成本均以O((log_n){sup}(-2))的时间为单位,其中n为节点数。

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