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Czech Technical University in Prague, FEE, Dept. of Computer Science & Eng.

VˇSB–TU Ostrava, FEECS, Department of Computer Science Charles University in Prague, MFF, Department of Software Engineering

Czech Society for Cybernetics and Informatics

Proceedings of the Dateso 2009 Workshop Databases, Texts

Specifications, and Objects

2009

http://www.cs.vsb.cz/dateso/2009/

http://www.ceur-ws.org/

April 15 – 17, 2009

Spindler˚ ˇ uv Ml´ yn – Patejdlova bouda

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DATESO 2009

c K. Richta, J. Pokorn´y, V. Sn´aˇsel, editors

This work is subject to copyright. All rights reserved. Reproduction or publication of this material, even partial, is allowed only with the editors’ permission.

Copyright c2009 for the individual papers by the papers’ authors. Copying permitted for private and academic purposes. Re-publication of material from this volume requires permission by the copyright owners.

Technical editor:

Pavel Strnad,[email protected]

Page count: 178 Impression: 50 Edition: 1st First published: 2009

This proceedings was typeset by PDFLATEX.

Cover design by Mark´eta R˚uˇziˇckov´a

Printed and bound in Prague, Czech Republic by ˇCesk´a technika - nakladatelstv´ı CVUT.ˇ

Published by Czech Technical University in Prague Faculty of Electrical Engineering

Department of Computer Science and Engineering

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Preface

DATESO 2009, the international workshop on current trends on Databases, Information Retrieval, Algebraic Specification and Object Oriented Program- ming, was held on April 15 – 17, 2009 in ˇSpindler˚uv Ml´yn – Patejdlova bouda.

This was the 9th annual workshop organized by Department of Computer Science and Engineering FEL ˇCVUT Praha, and Department of Software Engineering MFF UK Praha, and Department of Computer Science VˇSB- Technical University Ostrava, and working group on Informatics and Society of Czech Society for Cybernetics and Informatics. The DATESO workshops aim for strengthening connections between these various areas of Computer science. The proceedings of DATESO 2009 are also available at DATESO Web site http://www.cs.vsb.cz/dateso/2009/, and CEUR Workshop Proceeding pageshttp://www.ceurws.org/(ISSN 1613-0073).

The Program Committee selected 14 papers from 21 submissions, based on two independent reviews.

We wish to express our sincere thanks to all the authors who submitted papers, the members of the Program Committee, who reviewed them on the basis of originality, technical quality, and presentation. We are also thankful to the Organizing Committee for preparation of workshop and its proceedings.

Special thanks belong to Czech Society for Cybernetics and Informatics for its support of publishing this issue.

March, 2009 K. Richta, J. Pokorn´y, V. Sn´aˇsel (Eds.)

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Steering Committee

Karel Richta Czech Technical University, Prague Jaroslav Pokorn´y Charles University, Prague

V´aclav Sn´aˇsel VˇSB-Technical University of Ostrava, Ostrava

Program Committee

Karel Richta (chair) Charles University and Czech Technical University, Prague Jaroslav Pokorn´y Charles University, Prague

V´aclav Sn´aˇsel VˇSB-Technical University of Ostrava, Ostrava Irena Ml´ynkov´a Charles University, Prague

Vojtˇech Sv´atek University of Economics, Prague Peter Vojt´aˇs Charles University, Prague Tom´aˇs Skopal Charles University, Prague

Duˇsan H´usek Inst. of Computer Science, Academy of Sciences, Prague Michal Kr´atk´y VˇSB-Technical University of Ostrava, Ostrava

Pavel Moravec VˇSB-Technical University of Ostrava, Ostrava Pavel Loupal Czech Technical University, Prague

Jan Stoklasa Czech Technical University, Prague Pavel Strnad Czech Technical University, Prague

Organizing Committee

Pavel Loupal (chair) Czech Technical University, Prague Jan Stoklasa Czech Technical University, Prague Pavel Strnad Czech Technical University, Prague

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Table of Contents

Speeding Up Shortest Path Search in Public Transport Networks . . . 1 Vladislav Mart´ınek, Michal ˇZemliˇcka

From Web Pages to Web Communities. . . 13 Miloˇs Kudˇelka, V´aclav Sn´aˇsel, Zdenˇek Hor´ak, Aboul Ella Hassanien

Compression of the Stream Array Data Structure . . . 23 Radim Baˇca, Martin Pawlas

Benchmarking Coding Algorithms for the R-tree Compression . . . 32 Jiˇr´ı Walder, Michal Kr´atk´y, Radim Baˇca

Translation of Ontology Retrieval Problem into Relational Queries . . . 44 Jaroslav Pokorn´y, Jana Pribolov´a, Peter Vojt´aˇs

Various aspects of user preference learning and recommender systems. . . . 56 Alan Eckhardt

Using Top Trees For Easy Programming of Tree Algorithms . . . 68 Michal Vajbar

Dimension Reduction Methods for Iris Recognition. . . 80 Pavel Moravec, V´aclav Sn´aˇsel

Five-Level Multi-Application Schema Evolution. . . 90 Martin Neˇcask´y, Irena Ml´ynkov´a

Tequila - a query language for the Semantic Web . . . 105 Jakub Galgonek

The BPM to UML activity diagram transformation using XSLT . . . 119 Ondˇrej Macek, Karel Richta

XML-λType System and Data Model Revealed. . . 130 Pavel Loupal

Combination of TA- and MD-algorithm for Efficient Solving of Top-K

Problem according to User’s Preferences . . . 142 Mat´uˇs Ondreiˇcka, Jaroslav Pokorn´y

Efficiency Improvement of Narrow Range Query Processing in R-tree. . . . 154 Peter Chovanec, Michal Kr´atk´y

Author Index

. . . 166

Références

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