Conference Objective

CompSysTech’06 3

 CONFERENCE OBJECTIVE The CompSysTech’06 International Conference is organized by THE BULGARIAN ACADEMIC SOCIETY OF COMPUTER SYSTEMS AND INFORMATION TECHNOLOGY and its OBJECTIVE is to intensify the information exchange of the results in theoretical research and practical developments in this field. CompSysTech’06 is organised under the patronage of:  EUROPEAN COMMISSION - Directorate-General for Education and Culture;  Bulgarian State Agency for Information Technology and Communications;  Bulgarian Ministry of Education and Science;  Bulgarian Academy of Sciences;  Bulgarian Union of Automation and Informatics;  Bulgarian Chapter of the Association for Computing Machinery – acmbul;  Bulgarian Chapter of IEEE Computer Society;  Bulgarian Chapter of IEEE Communications Society.

 INTERNATIONAL PROGRAMME COMMITTEE  Honorary Chair: Kiril Boyanov, Acad., DSc. – Bulgaria Vassil Sgurev, Acad., DSc. – Bulgaria  Co-Chairs: Todor Stoilov, Prof., DSc – Bulgaria Boris Rachev, Assoc. Prof., Ph.D. – Bulgaria  Scientific Secretary: Dimo Dimov, Assoc. Prof., Ph.D.– Bulgaria  Members: Karl Jones (United Kingdom) Heinz-Dietrich Wuttke (Germany) Bozhan Zhechev (Bulgaria) Lidiya Georgieva (Bulgaria) Yannis Manolopoulos (Greece) Jukka Teuhola (Finland) Vladimir Lazarov (Bulgaria) Tzvetomir Vassilev (Bulgaria) Melih Inal (Turkey) Ville Leppanen (Finland) Leoneed Kirilov (Bulgaria) Margarita Todorova (Bulgaria) Dencho Batanov (Cyprus) Leon Rothkrantz (The Netherlands) George Totkov (Bulgaria) Stanislav Ivanov (Bulgaria) Antanas Zilinskas (Lithuania) Constantinos Pattichis (Cyprus) Evgeni Nikolov (Bulgaria) Juliana Peneva (Bulgaria) Joris Michaeli (Israel) Pavol Navrat (Slovakia) Georgi Todorov (Bulgaria) Atanas Gotchev (Bulgaria) Federico Thomas (Spain) Antonio Mendes (Portugal) Angel Popov (Bulgaria) Grisha Spasov (Bulgaria) Alexander Sudnitson (Estonia) Iliya Georgiev (USA) Radi Romansky (Bulgaria) Olegas Vasilecas (Lithuania) Janis Grundspenkis (Latvia) Leonid Rozenblyum (USA) Avram Eskenazi (Bulgaria) Jorge Ramio (Spain) Mayer Aladjem (Israel) Gordon Pace (Malta) Danail Dochev (Bulgaria) Timo Jarvi (Finland) Peter Stanchev (USA) Ivan Jelinek (Czech Republic) Gotcho Gotchev (Bulgaria) Valeriy Naumov (Finland) Evtim Peytchev (United Kingdom) Novruz Allahverdi (Turkey) Dimo Dimov (Bulgaria) Pino Caballero-Gil (Spain) Amar Ramdane-Cherif (France) Michael Vassilakopoulos (Greece) Nikolay Dokev (Bulgaria) Janusz Jablonowski (Poland) 4 CompSysTech’06

 NATIONAL ORGANIZING COMMITTEE  Co-Chairs: Angel Smrikarov, Assoc. Prof., Ph.D. – Bulgaria Bozhan Zhechev, Assoc. Prof., Ph.D. – Bulgaria Plamen Vatchkov, Assoc. Prof., Ph.D. – Bulgaria  Members: Margarita Todorova (Bulgaria) Stoyanka Smrikarova (Bulgaria) Emil Bojanov (Bulgaria) Tzvetomir Vasilev (Bulgaria) Plamenka Borovska (Bulgaria) Raycho Ilarionov (Bulgaria) Rumen Nikolov (Bulgaria) Svetla Radeva (Bulgaria) Nayden Vasilev (Bulgaria) Maria Kasheva (Bulgaria) Peter Antonov (Bulgaria) Daniela Dureva (Bulgaria) Anatoliy Antonov (Bulgaria) Galina Bogdanova (Bulgaria) CompSysTech’06 5

Thursday 15th June 2006

REGISTRATION 08:30 – 12:30 in the Rectorat in front of hall “Europe” 12:30 – 14:30 in the Rectorat in front of the ceremonial hall

15:00 Rectorat, ceremonial hall O P E N I N G WELCOME Chair: Georgi Todorov

PLENARY SESSION Chair: Todor Stoilov Co-chair: Boris Rachev VISP: a software platform for process automation in a digital cluster SMEs acting as a Virtual ISP Eric Mannie-Corbisier, Henri-Jean Pollet

Collaborative knowledge, data and control generation for real time information and control system Evtim Peytchev

Benchmarking e-Bulgaria: From measuring to policy-making Todor Yalamov

17:00 Rectorat, hall of the senate Meeting of the Members of the National Organizing Committee with the President of the Federation of the Scientific and Technical Unions

19:30 Social Evening in the Restaurant “Iantra” 6 CompSysTech’06 CompSysTech’06 7

SECTION 1

Computer Systems (Hardware)

Chair: Martin Stava Scientific Secretary: Ivan Kanev

SESSION 1 Friday 16th June 2006 09:00 – 10:00 Building 3, Hall 606

1. 1. An Approach to Reducing the Number of Instructions for Conditional Branches in FPGA Based 8 bit RISC SMCore Microcontroller Ivan Kanev 1. 2. A Hardware Unit for Backward Propagation of Output Vectors through a Combinational Circuit with Don’t Care Justification Martin Stava, Ondrej Novak 1. 3. Packet Error Rate Recognition for a Noisy Communication Channel Georgi Naydenov, Petko Soyanov 1. 4. Introducing the newest Philips’ microcontrollers into secured telemetry wireless applications. Boris Ribov

DISCUSSIONS

11:00 – 11:30 Coffee Break 8 CompSysTech’06 CompSysTech’06 9

SECTION 2

Computer Systems (Software)

Chair: Plamenka Borovska Co-Chair: Olegas Vasilecas Scientific Secretaries: Irena Valova, Svetlin Petrov

2. 1. A program system for generalized nets models constructing Dilyana Budakova, Lyudmil Dakovski 2. 2. Transferring online formatted HTML layouts into Flash and PDF Nikolaj Cholakov 2. 3. Generic modular framework for robotic arm applications Sergi Hernandez Juan, Josep M. Mirats Tur 2. 4. Low-level Floating Point Marshalling Between Different Instruction Level Architectures Iliya Georgeiv 2. 5. Bayesian Network Learning for Rare Events Samuel G. Gerssen, Leon J. M. Rothkrantz 2. 6. Object-oriented Paradigm as Evolution of Structured approach in Programming Galina Istatkova 2. 7. Dynamic Rights in Model-Carrying Code Sanna Tuohimaa, Mikael Laine, Ville Leppanen 2. 8. Application of business rules approach in clinical trials Olegas Vasilecas, Evaldas Lebedys

DISCUSSIONS

11:00 – 11:30 Coffee Break

2. 9. Business rule based data analysis for decision support and automation Olegas Vasilecas, Aidas Smaizys 2. 10. Observations on Lack of Cohesion Metrics Sami Makela, Ville Leppanen 2. 11. Solving the Travelling Salesman Problem in Parallel by Genetic Algorithm on Multicomputer Cluster Plamenka Borovska 10 CompSysTech’06

2. 12. Rapid Testing Methods in Latvia Girts Mamontovs, Larissa Zaitseva 2. 13. An Overview of the Agent Based Systems for the Business Process Management Janis Grundspenkis, Dmitrij Pozdnyakov 2. 14. Self-organizing map for conceptual modelling Algirdas Laukaitis, Olegas Vasilecas 2. 15. Parallel Combinatorial Search on Computer Cluster: Sam Loyd’s Puzzle Plamenka Borovska 2. 16. A Tool for Searching the Semantic Web for Supplies Matching Demands Zuzana Halanova, Pavol Navrat, Viera Rozinajova

DISCUSSIONS

13:30 – 14:30 Lunch

2. 17. Optimization of the Algorithm for Image Retrieval by Color Features Irena Valova, Boris Rachev, Michael Vassilakopoulos 2. 18. PLS Traffic Protection Svetlin Petrov CompSysTech’06 11

SECTION 3-A

Application Aspects of Computer Systems and Technologies

Chairs: Ludmil Dakovski, Ivan Krivy Co-Chairs: Naiden Vasilev, Novruz Allahverdi Scientific Secretaries: Plamen Manoilov, Elena Ivanova

3A. 1. An Example of Determination of Medicine Dose in the Treatment by Fuzzy Method Novruz Allahverdi, Ismail Saritas, Ilker Ali Ozkan 3A. 2. Data Performance of Modified Pushout+Ppd Mechanism with Elastic and Deterministic Traffic Sources with Priorities Valentin Hristov, Firas Ibrahim 3A. 3. EEG Eye-Blinking Artefacts Power Spectrum Analysis Plamen Manoilov 3A. 4. EEG Power Spectrum Analysis During Mental Task Performance Plamen Manoilov 3A. 5. Terminology of Nested Simulation Models Ivan Krivy, Eugene Kindler 3A. 6. On The Design of Hybrid Fiber-Coax Networks Emil Stoilov 3A. 7. Note on the Clustering Via Gaussian Mixtures Dimiter Petrov, Dimiter Tsvetkov 3A. 8. Multi-resolution Triangulation of Scattered Data taken by 3D scanner Bozhidar Stanchev

DISCUSSIONS

3A. 9. About Some Applications of Hidden Markov Model in Intrusion Detection Systems Veselina Jecheva 12 CompSysTech’06

3A. 10. Web Services Example with PHP/SOAP Martin Tsenov 3A. 11. Modeling and Execution of Web Service in Internet using Enhydra workflow platform Krasimir Trichkov, Elisaveta Trichkova 3A. 12. Bee Hive Metaphor for Web Search Pavol Navrat 3A. 13. Two-Parameter Logistic IRT Model with Latent Classes Lyubomir Hristov 3A. 14. Controller Network Data Extracting Protocol - Design and Implementation Nikolay Kakanakov, Ivan Stankov, Mitko Shopov, Grisha Spasov 3A. 15. A Classifier of Technical Diagnostic States of Electrocardiograph Lubomir Lahchev, Maya Dimitrova, David Rotger 3A. 16. Synchronized Performance of Multimedia Presentations Jordan Shterev DISCUSSIONS

13:30 – 14:30 Lunch

3A. 17. Data Modelling and Specific Rule Generation via DM Techniques Plamena Andreeva 3A. 18. Comparative Analysis of EJB3 and Spring Framework Janis Graudins, Larissa Zaitseva 3A. 19. A Parallel Conveyer Algorithm for the Recursive Method of Scanning Mask for Primary Images Processing Naiden Vasilev, Atanaska Bosakova-Ardenska 3A. 20. Solution of Optimization Continuous Centre Location Problems as Web Service Elena Ivanova, Todor Stoilov 3A. 21. Comparison of workflow software products Krasimira Stoilova, Todor Stoilov 3A. 22. An Algorithm for Computer Synthesis of Pairs of Generalized Mutually Orthogonal Complementary Signals Borislav Bedzhev, Zhaneta Savova-Tasheva, Valentin Mutkov 3A. 23. On Approach for Enterprise Ontology Transformation into Conceptual Model Olegas Vasilecas, Diana Bugaite, Justas Trinkunas 3A. 24. Distributed Automation System based on Java and Web Services Nikolay Kakanakov, Mitko Shopov, Grisha Spasov

DISCUSSIONS

16:30 – 17:00 Coffee Break CompSysTech’06 13

3A. 25. Tuning classification for prime implicants based learner Ludmil Dakovski, Zekie Shevked 3A. 26. Testing of Compatibility of Medical Data Bases Antanas Zilinskas, Audrius Varoneckas 3A. 27. Intelligent Application for Duplication Detection Plamen Paskalev, Anatoliy Antonov 14 CompSysTech’06 CompSysTech’06 15

SECTION 3-B

Application Aspects of Computer Systems and Technologies

Chairs: Stoicho Stoichev, Pavol Navrat Co-Chairs: Lidiya Georgieva, Karl Jones Scientific Secretaries: Tsvetozar Georgiev, Ivan Simeonov

3B. 1. Interest Rate Financial Instruments - XML Representation and Calculation of Cash Flow Streams Sevdalina Trifonova, Svetoslav Kyuchukov 3B. 2. A Method for Computer Design of Families of Generalized Mutually Orthogonal Complementary Signals Borislav Bedzhev, Zhaneta Savova-Tasheva, Valentin Mutkov 3B. 3. Computer-mathematical modeling of board oscillations of a military marine vessel based on the degenerate optimal singular adaptive M3A1 computer observer– Part I Lyubomir Sotirov, Nikola Lyutov, Todor Kolarov, Stela Sotirova 3B. 4. Computer-mathematical modeling of board oscillations of a military marine vessel based on the degenerate optimal singular adaptive M3A1 computer observer – Part II Lyubomir Sotirov, Nikola Lyutov, Todor Kolarov, Stela Sotirova 3B. 5. Optimisation of an intelligent ASP.NET user interface Plamen Paskalev, Georgi Panayotov 3B. 6. Wavelet-based analysis of simulated network traffic Mitko Gospodinov, Evgeniya Gospodinova 3B. 7. Signature verification via hand-pen motion investigation Mladen Savov, Georgi Gluhchev, Ognjan Bumbarov 3B. 8. Comparison of Genetic Algorithms and Particle Swarm Optimisation for Fermentation Feed Profile Determination Karl O. Jones

DISCUSSIONS

11:00 – 11:30 Coffee Break 16 CompSysTech’06

3B. 9. Risk Simulation in Project Management System Anatoliy Antonov, Vladimir Nikolov, Yanka Yanakieva 3B. 10. Protein Structure Models for Determining Protein Structure Similarity Stoicho D. Stoichev, Dobrinka Petrova 3B. 11. A Virtual Instrument for Automobiles’ Fuel Consumption Investigation Tsvetozar Georgiev 3B. 12. Tutorial System for Work Security and Health in SMEs According to the European Union Directives Rodica Mihalca, Adina Uta, Anca Andronescu, Iulian Intorsureanu 3B. 13. Avoiding IP Fragmentation at the Transport Layer of the OSI Reference Model Delian Genkov, Raycho Ilarionov 3B. 14. Avoiding the IP Fragmentation Process at the Application Layer of the OSI Reference Model Delyan Genkov, Raycho Ilarionov 3B. 15. Geometric-Morphological Method for Artifact Noise Isolation in the Image Periphery by a Contour Evolution Tree Dimo Dimov, Alexander Marinov 3B. 16. Harmonic methods for solid noise filtering from the image periphery Dimo Dimov, Nadezhda Zlateva

13:30 – 14:30 Lunch

3B. 17. Simulation Tool for Multicriteria Auctions in Transportation and Logistics Domain Egons Lavendelis, Janis Grundspenkis 3B. 18. A Tool for Searching the Semantic Web for Supplies Matching Demands Zuzana Halanova, Pavol Navrat, Viera Rozinajova 3B. 19. Acquiring, Organising and Presenting Information and Knowledge from the Web Pavol Navrat, Maria Bielikova, Viera Rozinajova 3B. 20. Analysis of the Benchmark while Extracting Data from Database or XML File for Different Platforms Ognian Nakov, Desislava Petrova 3B. 21. A Method for Leather Quality Determination using Fuzzy Neural Networks Kaloyan Krastev, Lidiya Georgieva 3B. 22. System of Speaker Identification Independent of Text for Romanian Language based on Gaussian Mixture Models extract from the MFCC vectors Marieta Gata, Gavril Toderean 3B. 23. Decision Support for Water Quality Management Emil Bournaski, Leoneed Kirilov, Rossen Iliev, Ivan Diadovski CompSysTech’06 17

3B. 24. Embedded system for short-term weather forecasting Ivan Simeonov, Hristo Kilifarev, Raycho Ilarionov

DISCUSSIONS

3B. 25. Distributed Simulation over Network of Workstations Hristo Valchanov, Nadezhda Ruskova, Trifon Ruskov 3B. 26. Developing E-Learning System Ileana Adina Uta 18 CompSysTech’06 CompSysTech’06 19

SECTION 4

Educational Aspects Chair: of Computer Systems and Technologies Juliana Peneva Co-chair: Douglas Harms Scientific Secretaries: Anelia Ivanova, Evgeniya Georgieva

4. 1. Techniques to Introduce Historical Computers into the Computer Science Curriculum Douglas Harms 4. 2. Two-Level Multiple-Output Combinational Networks Design Web-based Tutoring Tool Vladimir Mateev 4. 3. Towards Mobile University Campuses Rositsa Doneva, Nikolaj Kasakliev, George Totkov 4. 4. A Teaching in Operating Systems Tool Tzanko Golemanov, Emilia Golemanova 4. 5. BEST: New Lessons Module Logic Daniel Denev, Rositsa Doneva, George Totkov 4. 6. E-Learning Usability: An Mathematical Approach to the Estimation of Learners Valentina Terzieva, Yuri Pavlov, Rumen Andreev 4. 7. Assessment models in e-learning environments Daniela Dureva, Georgi Tuparov 4. 8. Views Of Academics On Academic Impropriety: Work In Progress Karl O. Jones, Juliet M. V. Reid, Rebecca Bartlett

DISCUSSIONS

4. 9. Utilization of UML in Bulgarian SME – Possible Training Strategies Juliana Peneva, Stanislav Ivanov, Georgi Tuparov 4. 10. Changes in Computer Science Teaching at Warsaw University Janusz Jablonowski 20 CompSysTech’06 4. 11. Variant of the WEB-based System for Electronic Distance Learning SEDL Raicho Ilarionov, Hristo Karailiev, Vladimir Karailiev 4. 12. Test Control Module of the WEB-based system SEDL Hristo Karailiev, Raicho Ilarionov, Vladimir Karailiev 4. 13. How to teach programming language to novice students? Lecturing or not? Asrun Matthiasdottir 4. 14. A Framework of Software Process for Interactive Training Simulators Anelia Ivanova 4. 15. A model of an ontologically based e-Learning environment Hristo Tuzharov, Chavdar Marchev 4. 16. Tools to support initial programming learning Antonio Jose Mendes, Maria Jose Marcelino

DISCUSSIONS

13:30 – 14:30 Lunch

4. 17. A Comparison Analysis of Mobile Learning Systems Evgeniya Georgieva 4. 18. The Role of the Internet in Computer-Aided Education Ilker Ali Ozkan, Ismail Saritas, Suleyman Sulak, Novruz Allahverdi 4. 19. Implementation of an E-Learning System to Enhance Local Competences Antonella Reitano, Alessandro Astorino CompSysTech’06 21

SECTION 5

For PhD Students

Chair: Vladimir Lazarov Co-chair: Ivan Jelinek Scientific Secretaries: Galina Ivanova, Vladimir Karailiev

5. 1. The recognition of emotions from speech using GentleBoost classifier. A comparison approach Dragos Datcu, Leon J.M. Rothkrantz 5. 2. Formal Specification of Business Components – a Design by Contract Perspective Anca Ioana Andronescu, Oana Muntean 5. 3. A survey on authorization and delegation Isaac Agudo 5. 4. Classification and Recognition of Neume Note Notation in Historical Documents Lasko Laskov 5. 5. An algorithm for automatic assignment of reviewers to papers Yordan Kalmukov 5. 6. Constructing Knowledge for Automated Text-Based Emotion Expressions Siska Fitrianie, Leon J.M. Rothkrantz 5. 7. Recursive Estimation of Dynamic Time Varying Demand Models Alexander Efremov 5. 8. Modelling of Adaptive Hypermedia Systems Martin Balik, Ivan Jelinek

DISCUSSIONS

13:30 – 14:30 Lunch

5. 9. Functional dependencies and points of intersection between the mechanisms for providing guaranteed QoS Vanya Topalova 22 CompSysTech’06

5. 10. Peer-to-Peer Semantic Search Engine Tomas Havryluk, Ivan Jelinek 5. 11. A model of Object Oriented Class for Extraction and Use of Data Cube Unit Information Antoaneta Ivanova, Valya Chotukova 5. 12. Adaptive Web based on Semantic Model Radek Jun, Ivan Jelinek 5. 13. Analyses of Web-based Systems for Electron Distant Learning Raicho Ilarionov, Vladimir Karailiev 5. 14. Applicability of Use-Case Modeling for Virtual Learning Environments Galina Ivanova 5. 15. A Model of a New e-Learning Shell Authoring Tool Tsvetan Hristov

DISCUSSIONS