Growth of knowledge, unparalleled in the history of the human race, results in the rapid development of technology. The solutions that until quite recently remained in the domain of science-fiction now become a part of our everyday life. Information systems and their technologies enter all the spheres of human¿s existence. Their influence is multiplied by network connections and by multimedia presentations and communications.
Our intention was to offer to the readers of this monograph a very broad review of the recent scientific problems in that area. Searching for their solutions had became a principal task of numerous scientific teams all over the world. Preparing this book we have asked for cooperation many European research teams. In effect the monograph is a collection of carefully selected and the most representative ¿ in our opinion - investigations, solutions, and applications presented by different scientific groups from nine countries. Content of the book has been divided into five parts:
1. Multimedia information technology
2. Data processing in information systems
3. Information system applications
4. Web systems and network technologies
5. E-learning methodologies and platforms.

- Multimedia Information Technology.- Interseum - From Physical to Virtual Showrooms.- The Synchronization of the Images Based on Normalized Mean Square Error Algorithm.- Evaluation of the Separation Algorithm Performance Employing ANNs.- Localization of Sound Source Direction in Real Time.- Dangerous Sound Event Recognition Using Support Vector Machine Classifiers.- Noise Tolerant Community Detection Using a Mixed Graph Model.- Fuzzy Rule-Based Dynamic Gesture Recognition Employing Camera and Multimedia Projector.- Video Structure Analysis and Content-Based Indexing in the Automatic Video Indexer AVI.- - Data Processing in Information Systems.- Acoustic Radar Employing Particle Velocity Sensors.- Superresolution Algorithm to Video Surveillance System.- Social Network Analysis in Corporate Management.- AAM Toolkit: A System for Visual Object Appearance Modeling.- Service Discovery Approach Based on Rough Sets for SOA Systems.- Towards Self-defending Mechanisms Using Data Mining in the EFIPSANS Framework.- - Information Systems Applications.- User Adaptivity Features of Secured Biomedical User Adaptive System.- Exploration of Continuous Sequential Patterns Using the CPGrowth Algorithm.- Detecting New and Unknown Malwares Using Honeynet.- Average Prior Distribution of All Possible Probability Density Distributions.- Interactive Visualization of a Product Search Space.- - Web Systems and Network Technologies.- Adaptive User Profile in Web IR System with Heuristic-Based Acquisition of Significant Terms.- Vertical Search Strategy in Federated Environment.- Music Information Retrieval on the Internet.- Verifying Text Similarity Measures for Two Layered Retrieval.- Verification of Open Source Web Frameworks for Java Platform.- - E-Learning Platforms.- E-Learning Usability Testing Platform.- E-Learning in Teaching the Object Oriented Programming.- Analytical Framework for Mirroring and Reflection of User Activities in E-Learning Environment.- The Paradigm of Screencasting in E-Learning.- An Opened Agent-Oriented System for Collaborative Learning.