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With the wide spread of Web services, there is a growing interest in semantic Web services based on ontologies, which support the automated discovery, selection, and composition of Web services. OWL-S is a de facto standard ontology for describing the semantics of Web services. Due to the complexity of the OWL-S grammar, it is difficult to construct OWL-S descriptions manually. This paper presents...
To improve knowledge management and service levels, and achieve integration of software used in the whole product development process are research purposes here. Existing problems in current researches of non-semantic and semantic models are analyzed. Product development process itself, i.e. origin of semantic information of product, is studied wholly as the research object. Through research on design...
In the Service Oriented Architecture paradigm, services are self-contained software units of functionality. Several services can be composed to assemble a composite one that provides an overall functionality. This process is called Service Composition. The automation of the service composition process aims at decreasing the human intervention during the service discovery, matching, filtering and reasoning...
With rapid growth of Internet, the amount of information in the Web is increasing exponentially. However, information on the current Web is understandable only for human, and thus it makes the exact information retrieval difficult. For solving this problem, the semantic Web is suggested and we must use ontology languages that can endow data to semantics for implementing it. For effective management...
This work illustrates the architecture of semantic Web and data model of RDF, and elaborates on RDF's formal system, whose descriptive mechanism is demonstrated with two examples, including the formalization of relational calculus and logic inference. In the end, it concludes that RDF is a formal specification method, which is a binary relation.
This paper mainly discusses the fuzzy extension to the data type representation mechanism of the existing XML schema and OWL. In accordance with the needs of practical application, we prompt a kind of fuzzy extension form to XML schema data typing and point out the limitations of OWL data typing. Furthermore, we mainly investigate the description logic playing as the underlining theory counterpart...
Web services are gaining momentum as key elements in cross-domain enterprises integration because more and more functions within intra- and inter-enterprises have been encapsulated as Web services. However, these services are typically provided and invoked by different service providers in different enterprises distributed in multi-domains, so it is inevitable to face the problem of semantic inconsistency...
Ontologies provide an explicit representation of concepts and their relationships, which provides a strong context for the use and manipulation of data within a problem domain. If the data is referred to without the ontological framework, any association with its original context is lost. A complex system may be implemented with several, different, programming languages and, while an ontological description...
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