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计算机工程

• 人工智能及识别技术 • 上一篇    下一篇

基于主体和QoS的语义Web服务组合方法

刘华鹏a,刘胜全a,b,刘 艳a,张华楠a,李 鹏a   

  1. (新疆大学 a. 信息科学与工程学院;b. 现代教育技术中心,乌鲁木齐 830046)
  • 收稿日期:2012-09-18 出版日期:2013-10-15 发布日期:2013-10-14
  • 作者简介:刘华鹏(1984-),男,硕士,主研方向:智能控制,自动推理;刘胜全,教授;刘 艳,副教授;张华楠、李 鹏,硕士
  • 基金资助:
    新疆维吾尔自治区科技攻关计划基金资助项目(200931103);新疆大学自然科学基金资助项目(XY110121)

Semantic Web Service Composition Method Based on Agent and QoS

LIU Hua-peng a, LIU Sheng-quan a,b, LIU Yan a, ZHANG Hua-nan a, LI Peng a   

  1. (a. School of Information Science and Engineering; b. Modern Educational Technology Center, Xinjiang University, Urumqi 830046, China)
  • Received:2012-09-18 Online:2013-10-15 Published:2013-10-14

摘要: 已有语义Web服务组合方法没有充分结合主体(Agent)技术和服务质量(QoS),不能为用户提供满足其偏好的最佳语义Web服务。为解决该问题,提出一种基于Agent和QoS的语义Web服务组合方法。在考虑用户对QoS的模糊偏好和优化服务空间的同时,将语义Web服务形式化为主体的动作,通过建立基于动态描述逻辑的主体模型,利用主体之间的协作实现语义Web服务目标,并使用动态描述逻辑的推理机制获得组合序列,从而得到最优的符合用户QoS偏好的语义Web服务组合,给出服务组合方法的相关算法。实例验证了该方法的可行性和有效性。

关键词: 主体, 动态描述逻辑, 服务质量, 语义Web服务组合, 效用函数, 用户偏好

Abstract: Without combining the advantages of the ways of Agent and Quality of Service(QoS), the current approaches of semantic Web service composition does not provide users with the best semantic Web services which adjusts users’ QoS preference. Considering the fuzziness of user’s QoS preference and the optimization of services space, this paper formalizes the semantic Web services as actions of Agent, and builds Agent model based on dynamic description logic, thus the goals of semantic Web service can be achieved by making use of the Agents cooperation, while getting the sequences of combination by using dynamic description logic’s reasoning mechanism, and as a result, the best semantic Web services composition is obtained. Some algorithms are provided and the validity and feasibility of this method are proved by an example.

Key words: Agent, dynamic description logic, Quality of Service(QoS), semantic Web service composition, utility function, user’ preference

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