北京邮电大学学报

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北京邮电大学学报

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使用范例推理的服务组合方法研究

成睿星, 苏森, 杨放春   

  1. 北京邮电大学 网络与交换国家重点实验室, 北京 100876
  • 收稿日期:2006-01-20 修回日期:1900-01-01 出版日期:2006-05-30 发布日期:2006-05-30
  • 通讯作者: 成睿星
  • 基金资助:
     

Research on Web Service Composition with Case-Based Reasoning

Ruixing Cheng, Sen Su, Fangchun Yang   

  1. State Key Lab of Networking and Switching, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2006-01-20 Revised:1900-01-01 Online:2006-05-30 Published:2006-05-30
  • Contact: Ruixing Cheng
  • Supported by:
     

摘要: 为了解决自动服务组合过程中的知识表示和知识积累问题,提高对已有的成功服务组合的可重用性与服务组合的效率,研究了一种基于范例推理的web服务组合方法。该方法将范例推理技术用于服务组合的发现阶段,并且将现有的服务组合引擎的推理工作移至范例推理系统中,设计适当检索,修改,重用和存储机制获取满足用户需求的组合服务逻辑集成,并提交服务执行引擎处理,实现自动服务组合。通过与其他方法的对比试验与定性分析结果表明基于范例推理的服务组合方法在一定条件下能够有效减少服务组合的代价,提高服务组合的成功率和效率。

关键词: web服务, 服务组合, 范例推理

Abstract: An approach to service composition, which is based on Case-Based Reasoning is presented in order to resolve the problem of expression and accumulation of knowledge in the process of automatic service composition. The reusability and efficiency was improved thereafter. Case-Based Reasoning in the stage of service composition discovery is applied with this approach when moving the logic design of the existing service composition engine to Case-Based Reasoning system. Further more, the suitable mechanism of retrieving, revising, reusing and retaining is designed to establish all sorts of service composition logic sets for users and send them to the service execution engine to realize automatic service composition. Finally, related experiments and qualitative analysis results indicate that the approach based on Case-Based Reasoning can reduce the cost of service composition and improve success rate and service composition efficiency under the certain condition.

Key words: web service, service composition, case-based reasoning

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