Hybrid Reasoning for Web Services Discovery

Abstract. This paper describes a novel approach for discovering web services. The approach combines two logic-based formalisms and two rea-soning engines and is illustrated in using a set of web services dedicated to web information extraction. The approach exhibits more or less com-plex relationships between services: (1) a service may have one or many variants, these are services that perform the same task, which leads to a first category of services specified with Feature Logics, (2) services may also be related by more intimate relationships, those links are expressed in using OIE ( Ontology for Information Extraction), a generic ontology that we designed. Hybrid reasoning is then performed based respectively on feature logics and OIE for Web services discovery.