8 research outputs found
A Generic Model of Knowledge and Competence of Domains
No full textInternational audienceKnowledge and competence management occupies a central place in many domains, considering the necessity for these domains to be aware of knowledge and competence of their actors, in order to follow them up, to identify possible gaps in the competences and so on. However, knowledge and competence management supposes a relevant modeling of these two concepts. In this paper, we propose a generic model for defining, representing, managing and exploiting knowledge and competences. This model may further be instantiated and used in different domains and with different types of actors (physical or moral). For the implementation of the proposed solution, a database of knowledge and competence is developed
Semantic Annotations for Web Services Discovery and Composition
No full textInternational audienceThe automatic discovery and composition of Web services rely on the facilities offered by the providers of services in describing the functionalities of their services semantically and on the description of the client's requests and their needs, without being ambiguous. In this paper, we present a model of Semantic Annotations for Web Services Discovery and its Composition. The proposed approach uses an inter-connected network of semantic Web services describing in OWL-S, using the similarity measure (outputs-inputs similarity) between concepts based on ontology, built before any submitted request. In only one exploration, the composition algorithm can find several composition plans. But the selected composition plan must be "the best one " according to the quality criteria (similarity, time and memory space). This technique takes advantages from a graph structure, chaining algorithm of expert system and semantic annotations
SAWSDL, Mediation and XQUERY for Web Services Discovery
No full textISBN : 978-1-59593-937-1International audienceWeb services have been adopted by large industrial and commercial organizations to achieve interoperability between distributed systems. The interaction between web services components is done through publication, research, discovery and then invocation based on the service's description. However, their publication in an UDDI registry doesn't offer enough description of the service offering. The main idea described in this paper is about having a semantic description of web services (using SAWSDL) and then storing their functionality, during the publication phase, in a register named 'semantic links base'. This base represents the mediator between the service requestor and the service provider and would minimize the search time during the discovery step, because the mapping between the request concepts and the Web services are known in advance. The Web services discovery process is about finding these mappings between the user query, which is defined in a unified manner by referring to an ontology, and the web services functionality. The user request is translated into a query on the 'semantic links base' as well as the UDDI registry. The result returned can then be used as entry point for another query
Conceptual Graphs for Competence Management
No full textInternational audienceIn this paper we present an approach on the one hand for competence management and discovery on the other hand for knowledge representation languages. By competence, we mean the capability or services of a physical or a non physical entity (an object, a software component, a possible industrial partner, a web service, etc.). The competence management is a complex process that we treat into three steps: competence representation, competence organization and competence use while searching entities that can satisfy a need. Competence management, being the management of knowledge about competence, can take advantage from the knowledge representation languages to support the competence management process. One of the originalities of this paper consists in using Conceptual Graphs knowledge representation language to support the mentioned process
