Abstract
Web services allow clients to invoke procedures, functions, and methods on remote objects using an XML-based protocol. SOAP, UDDI and WSDL are the three core elements of a web service. The client queries a UDDI registry (Chiusano, March 2003, http://lists.ebxml.org/archives/ebxml-dev/200304/msg00000.html; Noy and McGuinness, 2001, http://protege.stanford.edu/publications/ontology_development/ontology101.html) for the service. To improve the response time and reliability of web service repositories, we introduce a new strategy based on ontologies. Ontology based Service Index Annotator (OSIAN) is a module that can work in association with a search engine (Gopal and Gowri Ganesh, Proc Int Multi Conf Eng Comput Scientists, 1:2008, 766–770). It acts as a mediator between the user and the search engine. Its main purpose is to ease the job of the search engine and to give quick results to the user.
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References
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Appendix: Ontology Building Tools
Appendix: Ontology Building Tools
The following are two common tools that can be used for the creation of ontologies.
9.1.1 Protégé
Web Ontology Language (OWL) is the most recent development in standard ontology languages, endorsed by the World Wide Web Consortium (W3C). An OWL ontology may include descriptions of classes, properties and their instances. The Protégé-OWL API is an open-source Java library for OWL and RDF(S). The API provides classes and methods to load and save OWL files, to query and manipulate OWL data models, and to perform reasoning based on Description Logic engines. Furthermore, the API is optimized for the implementation of graphical user interfaces. The API is designed to be used in two contexts:
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For the development of components that are executed inside of the Protégé-OWL editor’s user interface
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For the development of stand-alone applications (e.g., Swing applications, Servlets, or Eclipse plug-ins)
The Protégé platform supports modeling of ontologies. When you use Protégé to create and edit ontologies you will generate at least 2 files:
A project file (with the extension .pprj). The project file stores information relating to any interface customizations or editor options you have selected.
A source file (with the extensions .owl, .rdfs, or .rdf). This file is where your ontology classes, individuals and properties are defined.
9.1.2 OntoBuilder
OntoBuilder is an efficient tool, which allows users to drive the ontology creation process using a user-friendly and intuitive interface. It was created by Israel Institute of Technology. Once ontologies are created, computer-supported tools can utilize them as part of the information seeking process. Mainly two issues come up when one try to create ontologies. The initial creation of ontologies is a tedious, time-consuming process. Another issues is the rapid evolution of ontologies. OntoBuilder let the machine generate the ontologies. Four constructs should be considered before extracting ontology from HTML pages: Terms (things), Values, Composition, Precedence.
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Gopal, V., Ganesh, N.G. (2009). Ontology Based Improvement of Response Time and Reliability of Web Service Repositories. In: Wai, PK., Huang, X., Ao, SI. (eds) Trends in Communication Technologies and Engineering Science. Lecture Notes in Electrical Engineering, vol 33. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9532-0_9
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