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OWL-S Based Platform of Automatic Discovery, Selection, Execution and Composition of Semantic Web Services

Author: ZhouZhongCheng
Tutor: XuWenBo
School: Jiangnan University
Course: Applied Computer Technology
Keywords: Semantic Semantic Web Web Services MAS OWL-S
CLC: TP393.09
Type: Master's thesis
Year: 2005
Downloads: 489
Quote: 4
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Abstract


With the growing popularity of Web services technology, the user is likely in the future will face a lot of the same types of Web services to choose from, these same type of functionality of Web services is the same, but its performance parameters such as service response time, service costs, service boundaries may be different, in this case, requires the user to manually find, select Web service is not unrealistic is inefficient, the better solution by the program according to the user's own state, requirements and parameters of Web services possible to automatically search, select the Web service and executed automatically preferred Web services. There is still not the researchers explicitly raised this issue and gives a complete solution. In this paper, the above problem is based on the implementation of the OWL-S ontology language to build a similar Web services in a particular area on the automatic discovery, selection and execution platform. In the service discovery process, the platform did not use the common UDDI mechanisms, instead of using the JADE DF mechanism, greatly reducing service response delay, improve the system efficiency. Of course, the cost of the platform can not be too large, generally only be achieved in a particular area. Service selection process based on geographic ontology the geographical matching function, and provides a preliminary user behavior and memory function for the service request broker. OWL-S semantic support, so that the system automatically selects the matching process with a preliminary intelligence, initial manifestation of the different needs of different users, to achieve the best service for any customer to provide efficient protection objectives. Defining an acceptable range in the user for the services provided by the said platform offers the optimal service (this is achieved by a dynamic combination of Web services), at any time while the Dynamic composition of Web service response delay within, this paper presents a the efficient dynamic combination of a Web service implementations. Has a Web service implemented a dynamic combination of platform generally have relatively low efficiency in the implementation, the user is likely to can not stand too long the system waiting time. Thus, the lower the system efficiency of the implementation is likely to be a major obstacle for effective application of dynamic Web service composition. Web services through a combination of replacement process independent, asynchronous, parallel, this paper presents a way to effectively improve the efficiency of the implementation of composite Web services implementations, and implementation platform prototype system. In addition, in order to improve the success rate of the service matching, this paper also proposed OWL shared ontology-based Web service automatically match. This paper presents the two platforms together can be achieved to some extent at any time for any customer to provide efficient optimal target Web Service.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network
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