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We present an approach to hybrid semantic Web service matching that complements logic based reasoning with approximate matching based on syntactic IR based similarity computations. The hybrid matchmaker, called OWLS-MX, applies this approach to services and requests specified in OWL-S. Experimental results of measuring performance and scalability of different variants of OWLS-MX show that under certain constraints logic based only approaches to OWLS service I/O matching can be significantly outperformed by hybrid ones.

OWL Resource: definitions, specifications, etc.

"Events [Cal. 2009] Finance - Breaking the conspiracy for ignorance (Amsterdam, 5 October 2009), Semantic training of TopQuadrant (Amsterdam, 5 October 2009), OWLED 2009 (Chantilly, VA, 23 October 2009), Rr2009 (Virginia, 25 October 2009), ISWC2009 (Chantilly, VA, 25 October 2009, subevents: SDoW2009, SMR2-2009) view all events …"

IBM To represent the Semantic Web, you'll use the following technologies: * A global naming scheme (URIs) * A standard syntax for describing data (RDF) * A standard means of describing the properties of that data (RDF Schema) * A standard means of describing relationships between data items (ontologies defined with the OWL Web Ontology Language) Let's take a closer look at these technologies.

A complex set of extensions to the World Wide Web, the Semantic Web will make data and services more accessible to computers and useful to people. Some of these extensions are being deployed, and many are coming in the next years. This is the only book to explore the territory of the Semantic Web in a broad and conceptual manner. This Guide acquaints you with the basic ideas and technologies of the Semantic Web, their roles and inter-relationships. The key areas covered include knowledge modeling (RDF, Topic Maps), ontology (OWL), agents (intelligent and otherwise), distributed trust and belief, "semantically-focused" search, and much more. The book's basic, conceptual approach is accessible to readers with a wide range of backgrounds and interests. Important points are illustrated with diagrams and occasional markup fragments. As it explores the landscape it encounters an ever-surprising variety of novel ideas and unexpected links. The book is easy and fun to read - you may find it hard to put down.