SOFSEM 2005: Theory and Practice of Computer Science: 31st Conference on Current Trends in Theory and Practice of Computer Science Liptovský Ján, Slovakia, January 22-28, 2005. Proceedings

Hans L. Bodlaender (auth.), Peter Vojtáš, Mária Bieliková, Bernadette Charron-Bost, Ondrej Sýkora (eds.)354024302X, 9783540243021, 9783540305774

This volume contains papers selected for presentation at the 31st Annual C- ference on Current Trends in Theory and Practice of Informatics – SOFSEM 2005, held on January 22–28, 2005 in LiptovskyJ ´ an, ´ Slovakia. The series of SOFSEM conferences, organized alternately in the Czech – public and Slovakia since 1974, has a well-established tradition. The SOFSEM conferences were originally intended to break the Iron Curtain in scienti?c – change. After the velvet revolution SOFSEM changed to a regular broad-scope international conference. Nowadays, SOFSEM is focused each year on selected aspects of informatics. This year the conference was organized into four tracks, each of them complemented by two invited talks: – Foundations of Computer Science (Track Chair: Bernadette Charron-Bost) – Modeling and Searching Data in the Web-Era (Track Chair: Peter Vojt´ a? s) – Software Engineering (Track Chair: M´ aria Bielikova) ´ – Graph Drawing (Track Chair: Ondrej Syk ´ ora) The aim of SOFSEM 2005 was, as always, to promote cooperation among professionalsfromacademiaandindustryworkinginvariousareasofinformatics. Each track was complemented by two invited talks. The SOFSEM 2005 Program Committee members coming from 13 countries evaluated 144 submissions (128 contributed papers and 16 student research – rum papers). After a careful review process (counting at least 3 reviews per paper), followed by detailed discussions in the PC, and a co-chairs meeting held on October 8, 2005 in Bratislava, Slovakia, 44 papers (overall acceptance rate 34.

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Table of contents :
Front Matter….Pages –
Discovering Treewidth….Pages 1-16
From Research Prototypes to Industrial Strength Open Source Products – The ObjectWeb Experience….Pages 17-27
How Hard Is It to Take a Snapshot?….Pages 28-37
Logical Foundations for Data Integration….Pages 38-40
Recent Advances in Graph Drawing….Pages 41-41
The Hyperdatabase Network – New Middleware for Searching and Maintaining the Information Space….Pages 42-46
Architecture of a Business Framework for the .NET Platform and Open Source Environments….Pages 47-52
Progress on Crossing Number Problems….Pages 53-61
Greedy Differential Approximations for Min Set Cover….Pages 62-71
A Methodology of Visual Modeling Language Evaluation….Pages 72-81
Local Computations on Closed Unlabelled Edges: The Election Problem and the Naming Problem….Pages 82-91
A Hierarchical Markovian Mining Approach for Favorite Navigation Patterns….Pages 92-95
Non-planar Orthogonal Drawings with Fixed Topology….Pages 96-105
A Topology-Driven Approach to the Design of Web Meta-search Clustering Engines….Pages 106-116
Computing Upward Planar Drawings Using Switch-Regularity Heuristics….Pages 117-126
Serial and Parallel Multilevel Graph Partitioning Using Fixed Centers….Pages 127-136
Two-Layer Planarization: Improving on Parameterized Algorithmics….Pages 137-146
On the Stability of Approximation for Hamiltonian Path Problems….Pages 147-156
Robustness of Composed Timed Systems….Pages 157-166
Topology Generation for Web Communities Modeling….Pages 167-177
Recursion Versus Replication in Simple Cryptographic Protocols….Pages 178-187
Modeling Data Integration with Updateable Object Views….Pages 188-198
Fixed-Parameter Tractable Algorithms for Testing Upward Planarity….Pages 199-208
Read/Write Based Fast-Path Transformation for FCFS Mutual Exclusion….Pages 209-218
Adjustment of Indirect Association Rules for the Web….Pages 219-228
Anonymous Communication with On-line and Off-line Onion Encoding….Pages 229-238
Characteristic Patterns for LTL….Pages 239-249
Planar Straight-Line Drawing in an $mathcal{O}(n)times mathcal{O}(n)$ Grid with Angular Resolution $it Omega$ (1/ n )….Pages 250-258
Modeling Nested Relationships in XML Documents Using Relational Databases….Pages 259-268
RAQ: A Range-Queriable Distributed Data Structure….Pages 269-277
On Some Weighted Satisfiability and Graph Problems….Pages 278-287
On the Security and Composability of the One Time Pad….Pages 288-297
Lower Bounds on the OBDD Size of Graphs of Some Popular Functions….Pages 298-309
XML-Based Declarative Access Control….Pages 310-319
VCD: A Visual Formalism for Specification of Heterogeneous Software Architectures….Pages 320-329
Cost-Constrained Minimum-Delay Multicasting….Pages 330-339
Ontology-Based Inconsistency Management of Software Requirements Specifications….Pages 340-349
Suffix Tree Based Data Compression….Pages 350-359
Tier Aspect Model Based on Updatable Views….Pages 360-363
Well-Founded Metamodeling for Model-Driven Architecture….Pages 364-367
Stepwise Optimization Method for k -CNN Search for Location-Based Service….Pages 368-371
An Approach for Integrating Analysis Patterns and Feature Diagrams into Model Driven Architecture….Pages 372-375
Outerplanar Crossing Numbers of 3-Row Meshes, Halin Graphs and Complete p -Partite Graphs….Pages 376-379
Fast Bit-Vector Algorithms for Approximate String Matching Under Indel Distance….Pages 380-384
Feature Selection by Reordering….Pages 385-389
A Management Scheme for the Basic Types in High Level Languages….Pages 390-393
Bayesian Networks in Software Maintenance Management….Pages 394-398
A Multiagent System Aiding Information Retrieval in Internet Using Consensus Methods….Pages 399-402
Interval-Valued Data Structures and Their Application to e-Learning….Pages 403-407
Boolean Functions with a Low Polynomial Degree and Quantum Query Algorithms….Pages 408-412
Representation of Extended RBAC Model Using UML Language….Pages 413-417
A Methodology for Writing Class Contracts….Pages 418-422
Volumes of 3D Drawings of Homogenous Product Graphs….Pages 423-426
Back Matter….Pages –