西安交通大学计算机科学与技术系,西安,710049
网络首发:2008-08-10,
纸质出版:2008
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朱正东 1, 伍卫国 1, 胡亚红 2, 等. 一种基于最小覆盖的复杂Web 服务组合方法[J]. 西安交通大学学报, 2008,42(8):945-949.
朱正东 1, 伍卫国 1, 胡亚红 2, et al. Minimum Coverage Method for Complicated Web Service Composition[J]. 2008, 42(8): 945-949.
针对复杂Web服务的组合问题
提出了基于最小覆盖的Web服务组合方法(CWSCM).该方法从需求目标出发
将逻辑理论中的逻辑函数化简的最小覆盖思想运用于基于本体的多层次服务匹配的过程之中
从而建立了最小服务匹配集合
同时构造了优化的有序服务组合图
并将该图的形式化表示保存于扩充的Web服务描述之中
以便复用.实验表明
CWSCM可成功地组合复杂的Web 服务
保证服务组合的成功率和效率
当组合满意度接近70%时
组合服务的成功率最高
而满意度对组合效率的影响比较小.
A minimum coverage method called CWSCM is presented to deal with complicated Web service composition. According to desired objectives
the minimum coverage theory that simplifies logic functions in mathematical logic is applied to the multi-level services matching process to discover the desired Web services
and establish a minimum service matching set. At the same time
an optimal sequenced service composition graph is constructed
and its formal expression is saved into the extended Web service description for reuse. Experiments show that CWSCM can compose complicated Web services successfully
and that the success rate and efficiency of Web service composition can be ensured. When the satisfaction degree of the composition reaches about 70%
the algorithm can achieve the highest success rate. However
the satisfaction degree has little impact on the efficiency of the composition.
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