The papers in this volume comprise the refereed proceedings of the conference Arti- cial Intelligence in Theory and Practice (IFIP AI 2010), which formed part of the 21st World Computer Congress of IFIP, the International Federation for Information Pr- essing (WCC-2010), in Brisbane, Australia in September 2010.

Agents.- Ecologically Rational Agency.- Involving the Human User in the Control Architecture of an Autonomous Agent.- Knowledge Acquisition.- Exer-Learning Games: Transferring Hopscotch from the Schoolyard to the Classroom.- Social Relationships as a Means for Identifying an Individual in Large Information Spaces.- Data Mining and Machine Learning.- J-PMCRI: A Methodology for Inducing Pre-pruned Modular Classification Rules.- Enhancement of Infrequent Purchased Product Recommendation Using Data Mining Techniques.- A Machine Learning Approach to Predicting Winning Patterns in Track Cycling Omnium.- Neural Nets and Fuzzy Logic.- Learning Motor Control by Dancing YMCA.- Analysis and Comparison of Probability Transformations for Fusing Sensors with Uncertain Detection Performance.- Case-Based Reasoning/Planning and Scheduling.- A Case-Based Approach to Business Process Monitoring.- A Survey on the Dynamic Scheduling Problem in Astronomical Observations.- Intelligent Systems Engineering.- Combining Determinism and Intuition through Univariate Decision Strategies for Target Detection from Multi-sensors.- A UML Profile Oriented to the Requirements Modeling in Intelligent Tutoring Systems Projects.- Learning by Collaboration in Intelligent Autonomous Systems.- AI Techniques.- Context-Based Probabilistic Scene Interpretation.- Full Text Search Engine as Scalable k-Nearest Neighbor Recommendation System.- Developing Intelligent Environments with OSGi and JADE.- AI Applications.- Bee Hive at Work: Following a Developing Story on the Web.- Computer-Aided Estimation for the Risk of Development of Gastric Cancer by Image Processing.- Intelligent Hybrid Architecture for Tourism Services.- Knowledge-Based Geo-risk Assessment for an Intelligent Measurement System.- Short Papers.-Workflows Recognition through Multi Agents in Surveillance Systems.- Speaker Verification System Using a Hierarchical Adaptive Network-Based Fuzzy Inference Systems (HANFIS).- Case-Based Decision Support in Time Dependent Medical Domains.- Solving the Capacitated Vehicle Routing Problem and the Split Delivery Using GRASP Metaheuristic.