Searching for authors named "Dimitris Kotzinos" – sorted by Relevance.

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5 documents found, showing 1 through 5.

ABSTRACT GAEA, a Java-based Map Applet
by Dimitris Kotzinos, Poulicos Prastacos
…Internet is changing the ways data are exchanged and presented. GIS benefit form the widespread use of the internet to make geographic data accessible to everybody. GAEA (Geographic Accessories for Efficient Applications) Map Applet that is presented in this paper enhances the ability of the web bro…
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(SEMANTIC WEB) EVOLUTION THROUGH CHANGE LOGS: PROBLEMS AND SOLUTIONS
by Yannis Tzitzikas, Dimitris Kotzinos
…Knowledge evolution is currently a hot research topic within the Semantic Web community. This paper investigates a change-based Semantic Web, according to which any modification applied to an ontology should be logged. The merits of this approach for supporting the process of evolution are discussed…
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On Ranking RDF Schema Elements (and its Application in Visualization)
by Yannis Tzitzikas, Dimitris Kotzinos, Yannis Theoharis
…Abstract: Ranking is a ubiquitous requirement whenever we confront a large collection of atomic or interrelated artifacts. This paper elaborates on this issue for the case of RDF schemas. Specifically, several metrics for evaluating automatic methods for ranking schema elements are proposed and disc…
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IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 1 On Graph Features of Semantic Web Schemas
by Yannis Theoharis, Yannis Tzitzikas, Dimitris Kotzinos, Vassilis Christophides
…Abstract — In this paper, we measure and analyze the graph features of Semantic Web (SW) schemas with focus on powerlaw degree distributions. Our main finding is that the majority of SW schemas with a significant number of properties (resp. classes) approximate a power-law for total-degree (resp. nu…
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Generating on the fly queries for the semantic web: The ICS-FORTH graphical RQL interface (GRQL
by Nikos Athanasis, Vassilis Christophides, Dimitris Kotzinos — 2004 — In Proc. of ISWC 2004
…Abstract. Building user-friendly GUIs for browsing and filtering RDF/S description bases while exploiting in a transparent way the expressiveness of declarative query/view languages is vital for various Semantic Web applications (e.g., e-learning, e-science). In this paper we present a novel interfa…
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