Member of Program/Organizing Committee:

10th World Multi-Conference on SYSTEMICS, CYBERNETICS AND INFORMATICS, WMSCI'2006, Orlando, Florida

14th International Conferences in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG 2006, in co-operation with EUROGRAPHICS;Campus Bory, Plzen - Bory, Czech Republic;

The 2005 International Conference on Modeling, Simulation and Visualization Methods- MSV'05, World Congress of Applied Computing: June 27-30, 2005, USA;

The 2005 International Conference on Computer Vision - VISION'05: World Congress of Applied Computing: June 27-30, 2005, USA;

The International Conference on Computer Graphics, Visualization and Computer Vision, WSCG 2002 -present, in co-operation with EUROGRAPHICS; In Europe:

5th Ibero-American Symposium on Pattern Recognition - SIARP2000, Lisbon, Portugal, September 11-13, 2000;

7th Congress of Theoretical and Applied Mechanics, Sofia, Bulgaria, September 1993;

6th Congress of Theoretical and Applied Mechanics, Druzba-Varna, Bulgaria, September 1989.

Chairman of Research Session for

The 2005 International Conference on Computer Vision - VISION'05: World Congress of Applied Computing: June 27-30, 2005, USA;

The 9th World Multiconference on Systemic, Cybernetics and Informatics July 10-13, 2005 - Orlando, Florida, USA;

"Modeling and Identification", International Conference Modeling Identification and Control, Insbruck, Austria, February, 1992.