<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Archiving and Interchange DTD v1.0 20120330//EN" "JATS-archivearticle1.dtd">
<article xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Proceedings of the Dateso 2010 Workshop</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>T exts</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
          <xref ref-type="aff" rid="aff1">1</xref>
          <xref ref-type="aff" rid="aff4">4</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Charles University in Prague, MFF, Department of Software Engineering</institution>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Czech Technical University in Prague, FEE, Department of Computer Science</institution>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution>TU Ostrava, FEECS, Department of Computer Science</institution>
        </aff>
        <aff id="aff3">
          <label>3</label>
          <institution>Technical University of Ostrava Faculty of Electrical Engineering and Computer Science Department of Computer Science</institution>
        </aff>
        <aff id="aff4">
          <label>4</label>
          <institution>Technical editor: Pavel Moravec</institution>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2010</year>
      </pub-date>
      <abstract>
        <p>AMPHORA RESEARCH GROUP http://www.mirlabs.org/ http://www.cski.cz/</p>
      </abstract>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>-</title>
      <p>aDt abse,
http://www.cs.vsb.cz/dateso/2010/
http://www.ceur-ws.org/Vol-567/</p>
    </sec>
    <sec id="sec-2">
      <title>Group</title>
      <p>Sc.</p>
      <p>Sponsored by
A</p>
      <p>R</p>
      <p>G</p>
    </sec>
    <sec id="sec-3">
      <title>Amphor</title>
      <p>This work is subject to copyright. All rights reserved. Reproduction or publication of
this material, even partial, is allowed only with the editors' permission.
Page count:
Publication:
Impression: 150
Edition: 1st
First published: 2010
198
310th
This proceedings was typeset by PDFLATEX.</p>
      <p>Cover design by Pavel Moravec (pavel.moravec@vsb.cz) and Tomas Skopal.
Printed and bound in Ostrava, Czech Republic by TiskServis Jir Pustina.
Published by MATFYZPRESS publishing house of Faculty of Mathematics and Physics
Charles University in Prague, Sokolovska 83, 186 75 Praha 8, Czech Republic
as its 310th publication.
DATESO 2010, the international workshop on current trends on Databases,
Information Retrieval, Algebraic Speci cation and Object Oriented Programming,
was held on April 21 { 23, 2010 in in pension Fousek, Stedron n - Plazy.</p>
      <p>The 10th jubilee year was organized by Department of Software
Engineering MFF UK Praha, Department of Computer Science and Engineering FEL
CVUT Praha, Department of Computer Science VSB-Technical University
Ostrava, and the Working group on Computer Science 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 2010 are also available at DATESO Web site:
http://www.cs.vsb.cz/dateso/2010/ and CEUR Workshop Proceeding site:
http://www.ceur-ws.org/Vol-567/ (ISSN 1613-0073). The Program
Committee selected 15 papers (11 full papers and 4 posters) from 26 submissions,
based on two independent reviews.</p>
      <p>The workshop program also included 2 invited lectures: Database Trends
and Directions: Current Challenges and Opportunities by George Feuerlicht,
and Content-based Retrieval of Compressed Images by Gerald Schaefer.</p>
      <p>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 as
well as the Czech Society for Cybernetics and Informatics and MIR Labs for
their support of publishing this issue.</p>
      <p>Special thanks go to P. Moravec who, as copy editor of DATESO Proceedings,
prepared this volume.</p>
      <p>April, 2010
J. Pokorny, V. Snasel, K. Richta (Eds.)</p>
      <sec id="sec-3-1">
        <title>Steering Committee</title>
        <p>Jaroslav Pokorny (chair) Charles University, Prague
Vaclav Snasel VSB-Technical University of Ostrava, Ostrava
Karel Richta Czech Technical University, Prague</p>
      </sec>
      <sec id="sec-3-2">
        <title>Program</title>
      </sec>
      <sec id="sec-3-3">
        <title>Committee</title>
        <p>Jaroslav Pokorny (chair) Charles University, Prague
Karel Richta Czech Technical University, Prague
Vojtech Svatek University of Economics, Prague
Peter Vojtas Charles University, Prague
Dusan Husek Inst. of Computer Science, Academy of Sciences, Prague
Michal Kratky VSB-Technical University of Ostrava, Ostrava
Tomas Skopal Charles University, Prague
Pavel Moravec VSB-Technical University of Ostrava, Ostrava
Irena Mlynkova Charles University, Prague
Michal Valenta Czech Technical University, Prague
Pavel Loupal Czech Technical University, Prague
Martin Necasky Charles University, Prague
Jir Dvorsky VSB-Technical University of Ostrava, Ostrava
Radim Baca VSB-Technical University of Ostrava, Ostrava
Petr Gajdos VSB-Technical University of Ostrava, Ostrava</p>
      </sec>
      <sec id="sec-3-4">
        <title>Organizing Committee</title>
        <p>VSB-Technical University of Ostrava, Ostrava
Charles University, Prague
Charles University, Prague</p>
        <p>Charles University, Prague
Parametrised Hausdor Distance as a Non-Metric Similarity Model for
Tandem Mass Spectrometry : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
Jir Novak, David Hoksza
Two-step Modi ed SOM for Parallel Calculation : : : : : : : : : : : : : : : : : : : : : :
Petr Gajdos, Pavel Moravec
Answering Metric Skyline Queries by PM-tree : : : : : : : : : : : : : : : : : : : : : : : :
Tomas Skopal, Jakub Lokoc
A Framework for E cient Design, Maintaining, and Evolution of a
System of XML Applications : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
Martin Necasky, Irena Mlynkova
Reconstructing Social Networks from Emails : : : : : : : : : : : : : : : : : : : : : : : : :
Marcel Kvassay, Michal Laclav k, Stefan Dlugolinsky
E cient Implementation of XPath Processor on Multi-Core CPUs : : : : : :
Martin Krulis, Jakub Yaghob
Fast Fibonacci Encoding Algorithm : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :
Jir Walder, Michal Kratky, Jan Platos
iXUPT: Indexing XML Using Path Templates : : : : : : : : : : : : : : : : : : : : : : : :
Tomas Bartos, Jan Kasarda
Reverse-engineering of XML Schemas: A Survey : : : : : : : : : : : : : : : : : : : : : :
Jakub Kl mek, Martin Necasky
1
13
22
38
50
60
72
84
96
Evolving Quasigroups by Genetic Algorithms : : : : : : : : : : : : : : : : : : : : : : : : : 108
Vaclav Snasel, Jir Dvorsky, Eliska Ochodkova, Pavel Kromer, Jan
Platos, Ajith Abraham
Using Spectral Clustering for Finding Students' Patterns of Behavior
in Social Networks : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 118
Gamila Obadi, Pavla Drazdilova, Jan Martinovic, Katerina Slaninova,
Vaclav Snasel</p>
        <sec id="sec-3-4-1">
          <title>Posters</title>
          <p>Deferred Node-copying Scheme for XQuery Processors : : : : : : : : : : : : : : : : : 131
Jan Kurs, Jan Vrany
Denotational Semantics of the XML- Query Language : : : : : : : : : : : : : : : : 139
Pavel Loupal, Karel Richta
Modeling and Veri cation of Priority Assignment in Real-Time
Databases Using Uppaal : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 147
Martin Kot
Testing Quasigroup Identities using Product of Sequence : : : : : : : : : : : : : : : 155
Eliska Ochodkova, Jir Dvorsky, Vaclav Snasel, Ajith Abraham</p>
        </sec>
        <sec id="sec-3-4-2">
          <title>Invited Papers</title>
          <p>Database Trends and Directions: Current Challenges and Opportunities : : 163
George Feuerlicht
Content-based Retrieval of Compressed Images : : : : : : : : : : : : : : : : : : : : : : : 175
Gerald Schaefer
Author Index : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 186</p>
        </sec>
      </sec>
    </sec>
  </body>
  <back>
    <ref-list />
  </back>
</article>