Computer Science ›› 2016, Vol. 43 ›› Issue (4): 106-110.doi: 10.11896/j.issn.1002-137X.2016.04.021

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QoS and Multilevel Index Based Web Service Publish/Subscribe

HE Qian, LI Jia, HU Qi-wei and QIANG Bao-hua   

  • Online:2018-12-01 Published:2018-12-01

Abstract: The publish/subscribe (P/S) can help to manage big scale web services actively.In this paper,a QoS based web services P/S model and system architecture with a web services match algorithm based on QoS and multilevel index was proposed.The matching relationship between QoS of web services and the subscription constraint is a key of the P/Smodel.The published web services and the service subscription are used to generate a filter matrix to reduce redundant matches.The multilevel index is constructed according to the QoS attribute type on the published web services,and then the map from attribute to service is generated to subscribe services rapidly.The experiments show that the proposed web service P/S system is better than traditional methods and is suitable to the large scale distributed web service management.

Key words: Publish/subscribe,Web service,Multilevel index,QoS,Rectangle filter

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