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Issue:
A QoS Pruning-Based Top-k Automatic Service Composition Method
Author(s):
YANG Ru-tao
,
ZHANG Shao-qian
,
DOU Wan-chun
Pages:
1489
-
1491
Year:
2012
Issue:
7
Journal:
Acta Electronica Sinica
Keyword:
Web服务
;
服务组合
;
服务质量(QoS)
;
本体语义
;
剪枝
;
Abstract:
在大规模的Web服务中自动搜索满足功能性需求并且QoS前k优的服务组合是一个具有挑战性的问题.为解决此问题,本文方法首先对服务组合进行建模,然后通过前向服务过滤算法缩小求解空间,最后利用贪婪算法进行QoS剪枝以加快Top-k服务组合的后向搜索.本文给出了该方法的系统结构设计,实验结果验证了此方法的可行性和高效性.
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