Artificial Intelligence in Education.- Building and Assessing Intelligent Tutoring Systems with an e-Learning 2.0 Authoring System.- Cognitive Modeling and Human Reasoning.- Robotic Orientation towards Speaker for Human-Robot Interaction.- Dialogue Model Specification and Interpretation for Intelligent Multimodal HCI.- Constraint Satisfaction.- Optimization of Investment Options Using SQL.- A Computational Method for Defeasible Argumentation Based on a Recursive Warrant Semantics.- Evolutionary Computation.- Improving Efficiency of a Genetic Algorithm Applied to Multi-robot Tactic Operation.- VarMOPSO: Multi-Objective Particle Swarm Optimization with Variable Population Size.- A Multi-Objective Genetic Algorithm with Path Relinking for the p-Median Problem.- Information, Integration and Extraction.- Using Visual Metrics to Selecting ICA Basis for Image Compression: A Comparative Study.- Knowledge Acquisition and Ontologies.- Extending DeLP with Attack and Support for Defeasible Rules.- An Argumentation Machinery to Reason over Inconsistent Ontologies.- Knowledge Representation and Reasoning.- Planning under the Uncertainty of the Technical Analysis of Stock Markets.- From Inconsistency to Consistency: Knowledge Base Revision by Tableaux Opening.- Nondeterministic Planning for Generating Interactive Plots.- Diagnosis of Medical Images Using an Expert System.- Revision of CTL Models.- Applying H m Heuristics in Petri Nets Reachability Problem.- Machine Learning and Data Mining.- Sampling for Information and Structure Preservation When Mining Large Data Bases.- Improved Graph-Based Metrics for Clustering High-Dimensional Datasets.- Empirical Evaluation of Ranking Prediction Methods for Gene Expression Data Classification.- Defining a Problem-State Representation with Data Mining within a Hyper-heuristic Model Which Solves 2D Irregular Bin Packing Problems.- Digital Web Library of a Website with Document Clustering.- Learning to Discover Faulty Spots in cDNA Microarrays.- A First Machine Learning Approach to Pronominal Anaphora Resolution in Basque.- Multiagent Systems.- A Holonic Multi-agent Model for Oil Industry Supply Chain Management.- Moral Minds as Multiple-Layer Organizations.- Making Electronic Contracting Operational and Trustworthy.- Normative Reasoning with an Adaptive Self-interested Agent Model Based on Markov Decision Processes.- Query-Based Argumentation in Agent Programming.- Studying the Emergence of Money by Means of Swarm Multi-agent Simulation.- Natural Language Processing.- Revisiting the Readability Assessment of Texts in Portuguese.- Improved Text Generation Using N-gram Statistics.- Text-to-Text Surface Realisation Using Dependency-Tree Replacement.- A Comparative Analysis of Centering-Based Algorithms for Pronoun Resolution in Portuguese.- Specification and Evaluation of a Spanish Conversational System Using Dialogue Models.- A Half-Way Semantics toward Collaborative Behavior in Interagent Dialogues.- Using Sentence Semantic Similarity Based on WordNet in Recognizing Textual Entailment.- Complementing RRL for Dialogue Summarisation.- A Multi-dimensional Annotation Scheme for Behaviour in Dialogues.- Neural Networks.- Evolving Artificial Neural Networks Using Adaptive Differential Evolution.- A Recurrent Neural Network for Channel Assignment Problems in Mobiles.- SVM Based Feature Selection: Why Are We Using the Dual?.- Pattern Recognition Using Spiking Neurons and Firing Rates.- Planning and Scheduling.- Interaction Graphs for Multivariate Binary Data.- Probabilistic Reasoning.- Detecting Drifts in Multi-Issue Negotiations.- A Logic Based Algorithm for Solving Probabilistic Satisfiability.- On-Line Viscosity Virtual Sensor for Optimizing the Combustion in Power Plants.- Evaluating an Affective Student Model for Intelligent Learning Environments.- Dynamic Reward Shaping: Training a Robot by Voice.- A Visual Grammar for Face Detection.- Recognition of Actions That Imply Movement by Means of a Mobile Device with a Single Built-in Accelerometer.- Development of a Tour-Guide Robot Using Dialogue Models and a Cognitive Architecture.- Detection of Multiple People by a Mobile Robot in Dynamic Indoor Environments.- A Motion Planner for Finding an Object in 3D Environments with a Mobile Manipulator Robot Equipped with a Limited Sensor.- A Driving Assistance System for Navigation in Urban Environments.- An Efficient Strategy for Fast Object Search Considering the Robot's Perceptual Limitations.- Search.- Building Feature-Based Maps with B-splines for Integrated Exploration.- A Heuristic Approach for Constructing Ternary Covering Arrays Using Trinomial Coefficients.- Controlling Search in Constrained-Object Models.- Semantic Web.- Adaptivity and Interoperability in e-Learning Using Ontologies.