Invited Speakers.- Social Networks and the Web.- CiteSeer: Past, Present, and Future.- Collaborative Filtering and Recommendation.- A Fuzzy Linguistic Multi-agent Model for Information Gathering on the Web Based on Collaborative Filtering Techniques.- Case-Based Reasoning as a Prediction Strategy for Hybrid Recommender Systems.- Supporting Web Communities.- Facing Environment Discontinuity through User Location.- Adaptive Resource Management in the PIÑAS Web Cooperative Environment.- Multi-agent Systems.- A Fuzzy Multi-agent System for Secure Remote Control of a Mobile Guard Robot.- Implementation of an Ontology Sharing Mechanism for Multiagent Systems Based on Web Services.- An Agent Based System for the Contextual Retrieval of Medical Information.- Soft Computing Methods I.- Attribute Reduction for Effective Intrusion Detection.- Computing Minimal Probabilistic Rules from Probabilistic Decision Tables: Decision Matrix Approach.- A Framework for Extending Fuzzy Description Logic to Ontology Based Document Processing.- Text Processing and Semantic Web.- On Correction of Semantic Errors in Natural Language Texts with a Dictionary of Literal Paronyms.- Web-Based Sources for an Annotated Corpus Building and Composite Proper Name Identification.- Intelligent Automated Navigation through the Deep Web.- Web Information Retrieval.- Extending the Rocchio Relevance Feedback Algorithm to Provide Contextual Retrieval.- Toward a Document Model for Question Answering Systems.- Designing Ontological Agents: an Alternative to Improve Information Retrieval in Federated Digital Libraries.- Categorization and Ranking.- Query Clustering for Boosting Web Page Ranking.- Fast Transforms in the Internet Document Retrieval.- Analysis of a Web Content Categorization System Based onMulti-agents.- Soft Computing Methods II.- ImmoSoftWeb: a Web Based Fuzzy Application for Real Estate Management.- Adaptive Watermarking Algorithm for Binary Image Watermarks.- Bayesian Methods to Estimate Future Load in Web Farms.

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