| Vol-330 Copyright © 2008 for the individual papers by the papers' authors. Copying permitted for private and scientific purposes. Re-publication of material from this volume requires permission by the copyright owners.

# DATESO 2008
Databases, Texts, Specifications, Objects

### Proceedings of the Dateso 2008 Annual International Workshop on
DAtabases, TExts, Specifications and Objects
Desna, Czech Republic, April 16-18, 2008.

Edited by

### Vaclav Snasel *
Karel Richta +
Jaroslav Pokorny #

* Amphora Research Group, Department of Computer Science, FEECS, VSB-Technical University of Ostrava, Ostrava, Czech Republic
+ Department of Computer Science and Engineering, FEE, Czech Technical University in Prague, Prague, Czech Republic
# Department of Software Engineering, MFF, Charles University, Prague, Czech Republic

## Table of Contents

### Cover

### First Pages

### Workshop Programme and Participant List

### Full Papers

1. Incox - A language for XML Integrity Constraints Description
   Katerina Opocenska, Michal Kopecky
2. Conceptual Model Based Normalization of XML Views
   Martin Necasky
3. Using taDOM Locking Protocol in a Functional XML Update Language
   Pavel Strnad and Pavel Loupal
4. Database Engineering from the Category Theory Viewpoint
   David Toth
5. Tensor Decomposition for 3D Bars Problem
   Jan Platos, Jana Kocibova, Pavel Kromer, Pavel Moravec, Vaclav Snasel
6. Developing Genetic Algorithms for Boolean Matrix Factorization
   Vaclav Snasel, Jan Platos, Pavel Kromer

### Invited Lectures

1. Towards Cost-based Optimizations of Twig Content-based Queries
   Michal Kratky and Radim Baca
2. Vector-Oriented Retrieval in XML Data Collections
   Jaroslav Pokorny
3. Decathlon, Conflicting Objectives and User Preference Querying
   Peter Vojtas

### Author index

19-May-2008: submitted by Pavel Moravec and Vaclav Snasel
20-May-2008: published on CEUR-WS.org
28-Jun-2008: added co-author's name for the first invited lecture