Zhang Peiyun (张佩云),Chen Enhong.[J].高技术通讯(英文),2012,18(3):295~301 |
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Prefiltering based automatic composition of multi-QoS semantic web services |
Revised:January 29, 2010 |
DOI:10.3772/j.issn.1006-6748.2012.03.013 |
中文关键词: |
英文关键词: semantic web services, semantic services chain, multi-QoS, pre-filtering, automated planning |
基金项目: |
Author Name | Affiliation | Zhang Peiyun (张佩云) | | Chen Enhong | |
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中文摘要: |
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英文摘要: |
To support the rapid automatic services composition and fulfill multi-quality of service (multi-QoS) demand, we propose a novel approach to realize services composition automatically by a pre-filtering process. Aimed at a set of web services with similar functionality and different quality of service(QoS), a semantic services chain is given and a corresponding constructing algorithm is proposed to construct the data structure. A pre-filtering process is put forward to find whether a composition service before planning exists. It can avoid aborted planning. An optimal planning algorithm is proposed which can choose the most suitable service from a lot of similar candidate services based on semantic service chains and multi-QoS values. The algorithms can improve the correctness and automation performances of automated semantic web services composition. As an example, a concrete composite process is analyzed. Experimental results show the validity of the composite process. |
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