The Semantic Web: Research and Applications: 8th Extended by Nikos Manolis, Yannis Tzitzikas (auth.), Grigoris Antoniou,

By Nikos Manolis, Yannis Tzitzikas (auth.), Grigoris Antoniou, Marko Grobelnik, Elena Simperl, Bijan Parsia, Dimitris Plexousakis, Pieter De Leenheer, Jeff Pan (eds.)

The books (LNCS 6643 and 6644) represent the refereed complaints of the eighth eu Semantic net convention, ESWC 2011, held in Heraklion, Crete, Greece, in May/June 2011. The fifty seven revised complete papers of the examine song awarded including 7 PhD symposium papers and 14 demo papers have been rigorously reviewed and chosen from 291 submissions. The papers are geared up in topical sections on electronic libraries music; inductive and probabilistic ways song; associated open facts music; cellular internet music; traditional language processing tune; ontologies music; and reasoning tune (part I); semantic information administration music; semantic internet in use tune; sensor net song; software program, prone, methods and cloud computing song; social net and internet technological know-how song; demo song, PhD symposium (part II).

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Extra resources for The Semantic Web: Research and Applications: 8th Extended Semantic Web Conference, ESWC 2011, Heraklion, Crete, Greece, May 29-June 2, 2011, Proceedings, Part I

Example text

The resulting ontology comprises of axioms and facts about repository items and is expressed in OWL 2 (Fig. 1). Fig. 1. A. Koutsomitropoulos, R. D. 2 Design and Architecture The semantic search service uses several APIs to perform search and inference against the ontology. The OWL API [5] is used as the basis for ontology manipulation and interaction with reasoners. Compared to our previous efforts [10] we have now migrated to the latest OWL API v. 0 to support proper handling of OWL 2 idioms as well as to better interface various reasoners.

E, then ET M0 (cr1) = {cr1}, ET M1(cr1) = {Alice}, ET M2 (cr1) = {Bob}, ET M3 (cr1) = {CSD} and ET M4 (cr1) = {cr1}. To compute the appropriate count information of the transition marker cr1, it is enough to compute Deg(cr1, cr1) according to Eq. p4 is not empty. The point is that the proposed model can handle cycles at schema level without requiring any further configuration. Now consider a user who wants to restrict the initial focus set, being a set of persons, through other persons connected with them through the property knows at depth m.

OWL since they were designed exactly for querying OWL (and OWL 2) documents. For example nRQL [4], OWL-QL [3] and OWLlink’s ASK protocol [11] fall in this category. Provided that querying an ontology is often about finding individuals or instances, another simple yet powerful approach is to directly employ DL syntax to write these queries. For example, the query tab of Protégé 44 follows this practice. It uses the Manchester syntax [6], which is a “less logician like” and more user-friendly syntax for writing OWL class expressions.

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