物联网服务发现方法的研究
首发时间:2015-12-14
摘要:服务发现技术是SOA架构的重要组成部分,它用于从已经发布的服务集中快速准确地找出满足用户需求的服务。随着物联网技术的快速发展和物理设备的廉价化,越来越多的物联网设备将接入到物联网中,如何从这些海量的、不稳定的异构设备提供的服务中快速准确地找出满足用户需求的服务显得越来越重要。本文提出了一个高效的服务发现方法。首先,提取服务特征向量,计算服务之间的相似度,通过聚类方法对服务集进行聚类,这样在服务检索时能够大大减少服务的比较次数,提高服务发现的效率。其次,当筛选出很多功能相似的服务之后,该方法可以基于最新的QoS属性做出一个全局最优的服务选择策略。最后,实验证明,本方法具有较好的服务发现效果。?????
关键词: 计算机应用技术:服务发现 相似度 聚类分析??
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Research on service discovery method in Internet of Things
Abstract:Service discovery technology is an important part of SOA architecture, it is used to find out the service to meet customer needs from the published services quickly and accurately. With the rapid development of the Internet of Things and the cost of physical devices becoming lower, more and more devices will be connected to the Internet of Things, it becomes more and more important to find out the service that can meet customer needs from these massive services offered by unstable heterogeneous devices. In this paper,an efficient service discovery method has been presented. First of all, the service feature vector is extracted, and the similarity between services is calculated. The service set is clustered by clustering method, so that it can greatly reduce the times of matching and improve the efficiency of service discovery. Besides,the method includes a global optimal service selection strategy based on QoS. At last, experiments show that this method has a better service discovery effect.??
Keywords: Technology of Computer Application service discovery similarity cluster analysis?
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No.4668191111736714****
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