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Bo Fu, Rob Brennan, Declan O’Sullivan (auth.), Asunción's The Semantic Web: Fourth Asian Conference, ASWC 2009, PDF

By Bo Fu, Rob Brennan, Declan O’Sullivan (auth.), Asunción Gómez-Pérez, Yong Yu, Ying Ding (eds.)

ISBN-10: 3642108709

ISBN-13: 9783642108709

This booklet constitutes the refereed complaints of the fourth Asian Semantic internet convention, ASWC 2009, held in Shanghai, China, in December 2009.

The 35 revised complete papers offered have been conscientiously reviewed and chosen from sixty three submissions. those submissions conceal a large diversity of subject matters together with, question languages and optimization, rule and logics, scalable reasoning, semantic content material new release, database and semantics, semantic internet prone, eSemantics (e.g., e-Business, e-Science, e-Learning, e-Culture, e-Health), social internet and semantics, semantic graph mining, safety for semantic internet, ontology modeling, ontology administration, to call a couple of.

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Read Online or Download The Semantic Web: Fourth Asian Conference, ASWC 2009, Shanghai, China, December 6-9, 2009. Proceedings PDF

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Additional info for The Semantic Web: Fourth Asian Conference, ASWC 2009, Shanghai, China, December 6-9, 2009. Proceedings

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Sipoš et al. − We can construct general models that describe a set of concrete triple instances and thus represent common knowledge implicitly contained in text. − Evaluation of our results showed that the constructed models are meaningful. We can expect them to be useful for automatic ontology construction and as additional knowledge for various reasoners. The paper is structured as follows. We first present our novel approach to triple extraction from text segments that does not require deep parsing.

Body(x, y) true in I, for I an interpretation that is a model for K. 2 Wrapping Relational Sources The purpose of data wrapping ontologies is to access data from relational sources. To this end, some of the concepts and roles are mapped to data stored in a database and described by a relational schema. We consider a fixed denumerable alphabet ΓV of value constants and we consider databases over ΓV . A relational schema R consists of relation symbols, and a database instance (or simply a database) D over R is a set of relations with constants from ΓV as atomic values.

This dataset contains word n-grams of lengths 1 to 5 and their frequency counts. It was computed from their web search engine’s index and was published on 6 DVDs (about 26 GB of compressed textual data). The dataset includes only n-grams from the English index (but we can still find a few n-grams from other languages due to impreciseness of the methods used for language detection). They captured data in January 2006. Text fragments represented as word n-grams were computed from more than 1 trillion words of source text containing more than 95 billion sentences.

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The Semantic Web: Fourth Asian Conference, ASWC 2009, Shanghai, China, December 6-9, 2009. Proceedings by Bo Fu, Rob Brennan, Declan O’Sullivan (auth.), Asunción Gómez-Pérez, Yong Yu, Ying Ding (eds.)


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