Download Current Trends in Database Technology - EDBT 2004 Workshops: by Lukasz Golab (auth.), Wolfgang Lindner, Marco Mesiti, Can PDF

By Lukasz Golab (auth.), Wolfgang Lindner, Marco Mesiti, Can Türker, Yannis Tzitzikas, Athena I. Vakali (eds.)

This quantity includes papers from the next ?ve workshops that have been a part of the total software for the foreign convention on Extending Database know-how (EDBT) held in Heraklion, Greece, March 2004: • ICDE/EDBT Joint Ph. D. Workshop (PhD) • Database applied sciences for dealing with XML-information on the internet (DataX) • Pervasive details administration (PIM) • Peer-to-Peer Computing and Databases (P2P&DB) • Clustering details Over the internet (ClustWeb) jointly, the ?ve workshops featured sixty one high quality papers chosen from appr- imately a hundred and eighty submissions. It was once, for that reason, dif?cult to settle on the papers that have been to beacceptedforpresentation. Webelievethattheacceptedpaperssubstantiallycontribute to their specific ?elds of analysis. The workshops have been an exceptional foundation for excessive and hugely fruitful discussions. the standard and volume of papers express that the parts of curiosity for the workshops are hugely energetic. a lot of first-class researchers are engaged on the aforementioned ?elds generating examine output that isn't purely of curiosity for different researchers but additionally for undefined. The organizers and individuals of the workshops have been hugely satis?ed with the output. The top of the range of the presenters and workshop members contributed to the luck of every workshop. the fantastic setting of Heraklion and the positioning of the EDBT convention additionally contributed to the final good fortune. final, yet no longer least, our honest due to the convention organizers – the organizing crew used to be regularly keen to aid and if there have been issues that didn't paintings, suggestions was once fast available.

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Besides conventional join operations, similarity join operations can be specified, whose index support is discussed in the further work (Sec. 2). The query language – CQuery – is concept-based and uses the known FLWR notation. CQuery comprises (i) selection of concepts using selection predicates, path expressions, and set operations between concept sets (FOR clause), (ii) obtaining and filtering instances (LET and WHERE clauses), and (iii) combining and projecting the results (RETURN clause). The following example returns information of all instances that are associated to the concept painting (or to one of the subconcepts) and contain “van Gogh” in the property artist.

We are also expanding the scope of our application domains, to test the viability of our multilingual architecture. com that sells books across the globe, with a sample product catalog in multiple languages as shown in Figure 1. The product catalog shown may be considered as a logical view assembled from data from several databases (each aligned with the local language needs), but searchable in a unified manner for multilingual users. Fig. 1. 1 Multilingual Name Searches In this environment, suppose a user wants to search for the works of an author in all (or a specified set of) languages.

We explain the ontology of text data in relational systems and show how we define the semantics for the new operators for phonemic and semantic matching of multilingual text data. Fig. 4. Ontology for Text Data Our view of storage and semantics of textual information in databases is shown in Figure 4. The semantics of what gets stored is sketched in the top part of the figure, and how the text data is stored is outlined by the lower half of the figure. ). Semantically, the text attributes may represent a wide variety of information, from simple strings to full documents; however, we consider only two specific type of attributes; first, those that store proper names, whose value is primarily in the vocalization of the name, tagged as 3 Historiography (the study of of history writing and written histories) and Autobiography are considered as specialized branches of History itself.

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