Download Advances in Informatics: 8th Panhellenic Conference on by Antonio Corral, Joaquin Cañadas, Michael Vassilakopoulos PDF

By Antonio Corral, Joaquin Cañadas, Michael Vassilakopoulos (auth.), Yannis Manolopoulos, Skevos Evripidou, Antonis C. Kakas (eds.)

This ebook constitutes the completely refereed post-proceedings of the eighth Panhellenic convention on Informatics, PCI 2001, held in Nicosia, Cyprus in November 2001.

The 31 revised complete papers awarded have been rigorously chosen and more advantageous in the course of months of reviewing from 104 convention papers. The papers hide the parts of databases, facts mining and clever structures, e-learning, human computing device interplay, snapshot processing, networks and platforms, software program and languages, and theoretical laptop science.

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Read or Download Advances in Informatics: 8th Panhellenic Conference on Informatics, PCI 2001 Nicosia, Cyprus, November 8–10, 2001 Revised Selected Papers PDF

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Additional info for Advances in Informatics: 8th Panhellenic Conference on Informatics, PCI 2001 Nicosia, Cyprus, November 8–10, 2001 Revised Selected Papers

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1077-1096, 1986. : “Searching Multimedia Databases by Content”, Kluwer, Boston, 1996. : “The BANG file: a New Kind of Grid File”, Proceedings 1987 ACM SIGMOD Conference, pp. 260-269, 1987. Gaede V. : “Multidimensional Access Methods”, ACM Computing Surveys, Vol. 2, pp. 170-231, 1998. G. : “The Gr-Tree: the Use of Active Regions in G-Trees”, Proceedings 3rd ADBIS Conference, pp. 141-155, 1999. G. : “The Arc-Tree: a Novel Symmetric Access Method for Multidimensional Data”, Proceedings 5th ADBIS Conference, pp.

1 Presentation Model Presentation models are essentially an extension to the classical conceptuallogical-physical hierarchy of database models [22]. The presentation model is similar to a report definition language and it extends a logical or a conceptual model. Through the presentation model the user can define how the results should be visualized. This is achieved by defining complex views and visualization strategies. There are many reasons for which these models are an essential need in OLAP systems.

On the other hand, grid files divide a data space into a grid structure by splitting each dimension into several non-uniformly spaced intervals. G-trees [8,10] that combine the features of both B-trees and grid files, are based on Y. Manolopoulos et al. ): PCI 2001, LNCS 2563, pp. 19-31, 2003.  Springer-Verlag Berlin Heidelberg 2003 20 Dimitris G. Kapopoulos and Michael Hatzopoulos the BD-tree [3,4] and the z-ordering [13,14]. Another data structure similar to the BD-tree is the BANG file [6].

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