Theoretical and Logical Methods -- On Special Functions and Theorem Proving in Logics for 'Generally' -- First-Order Contextual Reasoning -- Logics for Approximate Reasoning: Approximating Classical Logic "From Above" -- Attacking the Complexity of Prioritized Inference Preliminary Report -- A New Approach to the Identification Problem -- Towards Default Reasoning through MAX-SAT -- Autonomous Agents and Multi-agent Systems -- Multiple Society Organisations and Social Opacity: When Agents Play the Role of Observers -- Altruistic Agents in Dynamic Games -- Towards a Methodology for Experiments with Autonomous Agents -- How Planning Becomes Improvisation? - A Constraint Based Approach for Director Agents in Improvisational Systems -- Extending the Computational Study of Social Norms with a Systematic Model of Emotions -- A Model for the Structural, Functional, and Deontic Specification of Organizations in Multiagent Systems -- The Queen Robots: Behaviour-Based Situated Robots Solving the N-Queens Puzzle -- The Conception of Agents as Part of a Social Model of Distance Learning -- Emotional Valence-Based Mechanisms and Agent Personality -- Simplifying Mobile Agent Development through Reactive Mobility by Failure -- Dynamic Social Knowledge: The Timing Evidence -- Machine Learning -- Empirical Studies of Neighborhood Shapes in the Massively Parallel Diffusion Model -- Ant-ViBRA: A Swarm Intelligence Approach to Learn Task Coordination -- Automatic Text Summarization Using a Machine Learning Approach -- Towards a Theory Revision Approach for the Vertical Fragmentation of Object Oriented Databases -- Speeding up Recommender Systems with Meta-prototypes -- ActiveCP: A Method for Speeding up User Preferences Acquisition in Collaborative Filtering Systems -- Making Recommendations for Groups Using Collaborative Filtering and Fuzzy Majority -- Knowledge Discovery and Data Mining -- Mining Comprehensible Rules from Data with an Ant Colony Algorithm -- Learning in Fuzzy Boolean Networks - Rule Distinguishing Power -- Attribute Selection with a Multi-objective Genetic Algorithm -- Applying the Process of Knowledge Discovery in Databases to Identify Analysis Patterns for Reuse in Geographic Database Design -- Lithology Recognition by Neural Network Ensembles -- Evolutionary Computation and Artificial Life -- 2-Opt Population Training for Minimization of Open Stack Problem -- Grammar-Guided Genetic Programming and Automatically Defined Functions -- An Evolutionary Behavior Tool for Reactive Multi-agent Systems -- Controlling the Population Size in Genetic Programming -- Uncertainty -- The Correspondence Problem under an Uncertainty Reasoning Approach -- Random Generation of Bayesian Networks -- Evidence Propagation in Credal Networks: An Exact Algorithm Based on Separately Specified Sets of Probability -- Restoring Consistency in Systems of Fuzzy Gradual Rules Using Similarity Relations -- Natural Language Processing -- Syntactic Analysis for Ellipsis Handling in Coordinated Clauses -- Assessment of Selection Restrictions Acquisition.