Welcome to the 6th Atlantic Web Intelligence Conference (AWIC 2009), to be held during September 9-11, 2009 in Prague, Czech Republic. The conference will be held at the Faculty of Mathematics and Physics of the Charles University, Prague. This building has a convenient location in the historical city center, in the area called Lesser Town close to local attractions like Charles Bridge and Prague Castle.

The Atlantic Web Intelligence Conferences bring together scientists, engineers, computer users, and students to exchange and share their experiences, new ideas, and research results about all aspects (theory, applications and tools) of intelligent methods applied to Web based systems, and to discuss the practical challenges encountered and the solutions adopted. Previous AWIC events were held in Spain - 2003, Mexico - 2004, Poland - 2005, Israel - 2006 and France - 2007.

Zusammenfassung
The Atlantic Web Intelligence Conferences bring together scientists, en- neers, computer users, and students to exchange and share their experiences, new ideas, and research results about all aspects (theory, applications and tools)ofintelligentmethodsappliedtoWebbasedsystems,andtodiscussthe practical challenges encountered and the solutions adopted. Previous AWIC eventswereheld in Spain 2003,Mexico 2004,Poland 2005,Israel 2006 and France 2007. th This year, the 6 Atlantic Web Intelligence Conference (AWIC2009) held during September 9-11, 2009, at the Faculty of Mathematics and Physics of theCharlesUniversityinthehistoricalcitycenterofPrague,CzechRepublic. AWIC2009 is organized by the Machine Intelligence Research Labs (MIR ? Labshttp://www.mirlabs.org),VSB-TechnicalUniversityofOstrava,Czech Republic and the Institute of Computer Science, Academy of Sciences of the Czech Republic. Conference has attracted submissions from several parts of the world and each paper was reviewed by three or more reviewers. We are sure that the diversity of the topics dealt with in these papers and the quality of their contents, and the three keynote speakers (Peter Vojt´ a? s, Charles University in Prague, Czech Republic, George Feuerlicht, Department of Information Technologies, University of Economics, Prague, Czech Republic & Faculty of Engineering and Information Technology, UTS, Australia and Juan D. Velasqu ´ ez, University of Chile, Chile) make for an exciting conference. We would like to express our sincere gratitude to the program comm- tee, local organizing committee and the numerous referees who helped us evaluate the papers and make AWIC2009 a very successful scienti?c event. VI Preface Grateful appreciation is expressed to Professor Janusz Kacprzyk, Editor of theseriespublishingthis bookaswellastotheSpringerteamforits excellent work.

Inhalt
Invited Lectures.- Web Semantization Design and Principles.- Next Generation SOA: Can SOA Survive Cloud Computing?.- A Dynamic Stochastic Model Applied to the Analysis of the Web User Behavior.- Regular Papers.- Using Wavelet and Multi-wavelet Transforms for Web Information Retrieval of Czech Language.- An Extensible Open-Source Framework for Social Network Analysis.- Automatic Web Document Restructuring Based on Visual Information Analysis.- Reasoning about Weighted Semantic User Profiles through Collective Confidence Analysis: A Fuzzy Evaluation.- Estimation of Boolean Factor Analysis Performance by Informational Gain.- The Usage of Genetic Algorithm in Clustering and Routing in Wireless Sensor Networks.- Automatic Topic Learning for Personalized Re-Ordering of Web Search Results.- Providing Private Recommendations on Personal Social Networks.- Differential Evolution for Scheduling Independent Tasks on Heterogeneous Distributed Environments.- Visual Similarity of Web Pages.- Burst Moment Estimation for Information Propagation.- Search in Documents Based on Topical Development.- Mining Overall Sentiment in Large Sets of Opinions.- Opinion Mining through Structural Data Analysis Using Neuronal Group Learning.- Rough Set Based Concept Extraction Paradigm for Document Ranking.- Knowledge Modeling for Enhanced Information Retrieval and Visualization.- Entity Extraction from the Web with WebKnox.- Order-Oriented Reasoning in Description Logics.- Moderated ClassMembership Interchange in Iterative Multirelational Graph Classifier.