Dietze, Stefan; Benn, Neil; Domingue, John; Conconi, Alex and Cattaneo, Fabio
Two-fold Semantic Web service matchmaking – applying ontology mapping for service discovery.
In: The Semantic Web: Fourth Asian Conference, ASWC 2009, Shanghai, China, December 6-9, 2008 (Gómez-Pérez, Asunción; Yu, Yong-jiang and Ding, Ying eds.), Springer.
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Semantic Web Services (SWS) aim at the automated discovery and orchestration of Web services on the basis of comprehensive, machine-interpretable semantic descriptions. Since SWS annotations usually are created by distinct SWS providers, semantic-level mediation, i.e. mediation between concurrent semantic representations, is a key requirement for SWS discovery. Since semantic-level mediation aims at enabling interoperability across heterogeneous semantic representations, it can be perceived as a particular instantiation of the ontology mapping problem. While recent SWS matchmakers usually rely on manual alignments or subscription to a common ontology, we propose a two-fold SWS matchmaking approach, consisting of (a) a general-purpose semantic-level mediator and (b) comparison and matchmaking of SWS capabilities. Our semantic-level mediation approach enables the implicit representation of similarities across distinct SWS by grounding service descriptions in so-called Mediation Spaces (MS). Given a set of SWS and their respective grounding, a SWS matchmaker automatically computes instance similarities across distinct SWS ontologies and matches the request to the most suitable SWS. A prototypical application illustrates our approach.
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