Abstracts of Invited Presentations and Tutorials -- Constraint Programming in Computational Molecular Biology -- Computational Creativity -- From Wheels to Wings with Evolutionary Spiking Circuits -- An Introduction to Object-Oriented RuleML -- Learning from Networks of Examples -- Grammar Induction and Adaptive Information Disclosure -- Understanding Implicit Language Structures -- Performance Issues in Prolog Applications -- Artificial Life and Evolutionary Algorithms (ALEA) -- Optimization of Logistic Processes in Supply-Chains Using Meta-heuristics -- Evolutionary Neural Network Learning -- Golomb Rulers: The Advantage of Evolution -- A Particle Swarm Data Miner -- Yerkes-Dodson Law in Agents’ Training -- SAPPO: A Simple, Adaptable, Predator Prey Optimiser -- Evolutionary Neuroestimation of Fitness Functions -- A Resource Sharing Model to Study Social Behaviours -- Improving Self-Confidence: An Advise-Based Evolutionary Model -- Constraint and Logic Programming Systems (CLPS) -- Solving Set Partitioning Problems with Global Constraint Propagation -- Heuristic-Based Backtracking for Propositional Satisfiability -- On the BEAM Implementation -- YapDss: An Or-Parallel Prolog System for Scalable Beowulf Clusters -- Experimental Evaluation of a Caching Technique for ILP -- jcc: Integrating Timed Default Concurrent Constraint Programming into Java -- Extraction of Knowledge from Data Bases (EKDB) -- BAYES-NEAREST: A New Hybrid Classifier Combining Bayesian Network and Distance Based Algorithms -- A Data Mining Approach to Credit Risk Evaluation and Behaviour Scoring -- Influence of kNN-Based Load Forecasting Errors on Optimal Energy Production -- Creating User-Adapted Design Recommender System through Collaborative Filtering and Content Based Filtering -- Is the UCI Repository Useful for Data Mining? -- Improving the Efficiency of ILP Systems -- Reorganizing News Web Pages for Mobile Users -- Learning Semi Naïve Bayes Structures by Estimation of Distribution Algorithms -- Learning Action Theories with Ramifications -- Mining Low Dimensionality Data Streams of Continuous Attributes -- Adaptation to Drifting Concepts -- Border Detection on Remote Sensing Satellite Data Using Self-Organizing Maps -- Predicting Harmful Algae Blooms -- Improving Progressive Sampling via Meta-learning -- Multi-Agents and AI for the Internet (MAAII) -- Distributed Learning Agents in Urban Traffic Control -- The Chatbot Feeling – Towards Animated Emotional ECAs -- Using CLIPS to Detect Network Intrusions -- Model for Dialogue between Informational Agents -- A Possibilistic Logic Modeling of Autonomous Agents Negotiation -- Towards Individual Power Design -- An Architecture for a Rational Reactive Agent -- An Evolvable Rule-Based E-mail Agent -- Natural Language and Text Retrieval (NLTR) -- Automatic Summarization Based on Principal Component Analysis -- A Constraint Grammar Based Question Answering System for Portuguese -- Mining Generalized Character n-Grams in Large Corpora -- A Methodology to Create Ontology-Based Information Retrieval Systems -- A Preliminary Approach to the Multilabel Classification Problem of Portuguese Juridical Documents -- Synonymy for Query Expansion in Information Search -- Web Information Retrieval with Result Set Clustering -- ASdeCopas: A Syntactic-Semantic Interface -- Automatic Selection of Table Areas in Documents for Information Extraction -- Mandarin Question Sentence Detection: A Preliminary Study -- Acquiring Semantic Classes to Elaborate Attachment Heuristics -- Managing Dialog in a Natural Language Querying System.