| 基于目标递进的Web服务组合方法 |
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| 引用本文： | 王成良,冯欣. 基于目标递进的Web服务组合方法[J]. 计算机工程, 2011, 37(6): 52-54. DOI: 10.3969/j.issn.1000-3428.2011.06.019 |
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| 作者姓名： | 王成良 冯欣 |
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| 作者单位： | 1. 重庆大学软件学院,重庆,400044
2. 重庆大学计算机学院,重庆,400044 |
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| 摘 要： | 单个Web服务难以满足实际应用需求,如何组合已有服务形成新服务成为该领域的研究热点.现有的组合方法仅依靠输入和输出参数组合相关服务,很少考虑前提和后置条件的语义相关性.为此,提出一种基于目标递进的Web服务组合方法,采用前向链的搜索策略,建立基于条件的有向无环图,可有效利用输入、输出参数和前提、后置条件确定服务组合顺序...
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| 关 键 词： | Web服务 前向链 Web服务组合 基于目标递进 |
Web Service Composition Approach Based on Goal Narrowing |
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| WANG Cheng-liang,FENG Xin. Web Service Composition Approach Based on Goal Narrowing[J]. Computer Engineering, 2011, 37(6): 52-54. DOI: 10.3969/j.issn.1000-3428.2011.06.019 |
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| Authors: | WANG Cheng-liang FENG Xin |
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| Affiliation: | b(a.School of Software;b.School of Computer Science,Chongqing University,Chongqing 400044,China) |
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| Abstract: | Single Web services can not meet the needs of practical applications,how to compose existing services to form new services has become an important research in Web service domain.Current composition methods seldom consider the possible semantic similarities between their pre and post-conditions.To improve the situation,this paper presents a Web service composition approach based on goal narrowing.By introducing the use of a conditional directed acyclic graph,the approach can deal with complex interactions,containing control flow,information flow and pre/post conditions.Through a concrete example applying the approach to search for the service chain,the paper shows the effectiveness of the approach. |
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| Keywords: | Web service forward chain Web service composition based on goal narrowing |
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