Top K Query for QoS-Aware Automatic Service Composition
Top K Query for QoS-Aware Automatic Service Composition
复制标题
QoS 感知自动服务组合的 Top K 查询
DOI:
10.1109/tsc.2013.41
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发表时间:
2014-10
影响因子:
8.1
通讯作者:
Zhiyong Liu
中科院分区:
文献类型:
--
作者:
Wei Jiang;Songlin Hu;Zhiyong Liu
With the proliferation of Web services, service engineers demand automatic service composition algorithms that not only synthesize the correct service compositions from thousands of services but also satisfy the quality requirements of users. This is known as QoS-aware automatic service composition problem. Our observation is that current research of only finding the optimal service composition result has several shortcomings. Users have to utilize the optimal one, which will make it rigid, and consequently bring about problems, such as overload of “hot services” and lack of choices for users. To cope with these problems, a top k query mechanism is introduced in this paper, and a progressive and incremental Key-Path-Based Loose (KPL) algorithm with 100 percent accuracy is proposed. Our QSynth, which won the performance championship of Web Service Challenge 2009 and 2010, is extended to support top k query based on KPL algorithm. Evaluations show that, compared to the state of the art, KPL algorithm achieves superior scalability and accuracy with respect to a large variety of composition scenarios. Moreover, we generalize a new graph problem: top k DAGs (Directed Acyclic Graphs) problem based on the above work. Applications of this new graph problem contain API recommender, supply chain, and so on. KPL algorithm illustrated in this paper can address them efficiently, too.
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影响因子:
3.9
作者:
Jin Liang;K. Nahrstedt
通讯作者:
Jin Liang;K. Nahrstedt
DOI:
10.1109/cec.2009.44
发表时间:
2009-07
期刊:
2009 IEEE Conference on Commerce and Enterprise Computing
影响因子:
--
作者:
Yixin Yan;Bin Xu;Zhifeng Gu;Sen Luo
通讯作者:
Yixin Yan;Bin Xu;Zhifeng Gu;Sen Luo
DOI:
10.1109/cec.2009.27
发表时间:
2009-07
期刊:
2009 IEEE Conference on Commerce and Enterprise Computing
影响因子:
--
作者:
Peter Bartalos;M. Bieliková
通讯作者:
Peter Bartalos;M. Bieliková
DOI:
10.1007/s11432-010-0013-0
发表时间:
2010-02
期刊:
Science in China Series F: Information Sciences
影响因子:
--
作者:
Xuanzhe Liu;Gang Huang;Hong Mei
通讯作者:
Xuanzhe Liu;Gang Huang;Hong Mei
DOI:
10.1145/1316874.1316897
发表时间:
2007-11
期刊:
--
影响因子:
--
作者:
Lei Zou;Lei Chen;Yansheng Lu
通讯作者:
Lei Zou;Lei Chen;Yansheng Lu