Combining Configuration and Query Rewriting for Web Service Composition

Amin Mesmoudi, M. Mrissa, Mohand-Said Hacid
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引用次数: 21

Abstract

In this paper, we investigate the combination of configuration and query rewriting for semantic Web service composition. Given a user query and a set of service descriptions, we rely on query rewriting to find services that implement the functionalities expressed in the user query (discovery stage). Then, we use configuration to capture dependencies between services, and to generate a set of composed Web services described as a directed acyclic graph, while maintaining validity with respect to business rules (orchestration stage).Finally, we propose a semantic ranking algorithm to rank results according to user preferences (classification stage).The techniques used in our approach take into account the semantics of concepts utilized to describe the elements (services, business rules, query and user preferences) involved in the composition process. We provide a formal approach and its implementation, together with experiments on Web services from different application domains.
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结合配置和查询改写Web服务组合
在本文中,我们研究了语义Web服务组合的配置和查询重写的组合。给定一个用户查询和一组服务描述,我们依赖于查询重写来查找实现用户查询(发现阶段)中表达的功能的服务。然后,我们使用配置来捕获服务之间的依赖关系,并生成一组被描述为有向无环图的组合Web服务,同时保持相对于业务规则的有效性(编排阶段)。最后,我们提出了一种语义排序算法,根据用户偏好(分类阶段)对结果进行排序。我们的方法中使用的技术考虑了用于描述组合过程中涉及的元素(服务、业务规则、查询和用户首选项)的概念语义。我们提供了一种正式的方法及其实现,以及对来自不同应用程序领域的Web服务的实验。
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