The papers in this volume comprise the refereed proceedings of the conference 'Artificial Intelligence in Theory and Practice' (IFIP AI 2006), which formed part of the 19th World Computer Congress of IFIP, the International Federation for Information Processing (WCC- 2006), in Santiago, Chile in August 2006.

Knowledge and Information Management.- Can Common Sense uncover cultural differences in computer applications?.- Artificial Intelligence and Knowledge Management.- Agents 1.- The IONWI Algorithm: Learning when and when not to interrupt.- Formal Analysis of the Communication of Probabilistic Knowledge.- Detecting and Repairing Anomalous Evolutions in Noisy Environments: Logic Programming Formalization and Complexity Results.- Adding Semantic Web Services Matching and Discovery Support to the MoviLog Platform.- Learning Browsing Patterns for Context-Aware Recommendation.- Applying Collaborative Filtering to Reputation Domain: a model for more precise reputation estimates in case of changing behavior by rated participants.- Integration of AI with other Technologies.- Combine Vector Quantization and Support Vector Machine for Imbalanced Datasets.- Ontology Support for Translating Negotiation Primitives.- Statistical Method of Context Evaluation for Biological Sequence Similarity.- Biological inspired algorithm for Storage Area Networks (ACOSAN).- Neural Nets.- Radial Basis Functions Versus Geostatistics in Spatial Interpolations.- Neural Networks applied to wireless communications.- Anomaly Detection using prior knowledge: application to TCP/IP traffic.- A study on the ability of Support Vector Regression and Neural Networks to Forecast Basic Time Series Patterns.- Neural Plasma.- Knowledge Acquisition and Data Mining.- Comparison of SVM and Some Older Classification Algorithms in Text Classification Tasks.- An automatic graph layout procedure to visualize correlated data.- Knowledge Perspectives in Data Grids.- On the Class Distribution Labelling Step Sensitivity of CO-TRAINING.- Two new feature selection algorithms with Rough Sets Theory.- Evolutionary Computation.- Global Convexity in the Bi-Criteria Traveling Salesman Problem.- Evolutionary Algorithm for State Encoding.- Hypercube FrameWork for ACO applied to timetabling.- Multitree-Multiobjective Multicast Routing for Traffic Engineering.- Speech and Natural Language.- Road Segment Identification in Natural Language Text.- Learning Discourse-new References in Portuguese Texts.- Analysing Definition Questions by Two Machine Learning Approaches.- Fuzzy Rule-Based Hand Gesture Recognition.- Comparison of distance measures for historical spelling variants.- Industrial Applications of AI.- Patterns in Temporal Series of Meteorological Variables Using SOM & TDIDT.- Applying Genetic Algorithms to Convoy Scheduling.- A GRASP algorithm to solve the problem of dependent tasks scheduling in different machines.- A support vector machine as an estimator of mountain papaya ripeness using resonant frequency or frequency centroid.- FieldPlan: Tactical Field Force Planning in BT.- An Agent Solution to Flexible Planning and Scheduling of Passenger Trips.- Machine Vision.- Facial expression recognition using shape and texture information.- Limited Receptive Area neural classifier for texture recognition of metal surfaces.- A Tracking Framework for Accurate Face Localization.- A Combination of Spatiotemporal ICA and Euclidean Features for Face Recognition.- Agents 2.- Three Technologies for Automated Trading.- Modeling Travel Assistant Agents: a graded BDI approach.- e-Tools: An agent coordination layer to support the mobility of persons with disabilities..- Expert Systems.- Conceptualization Maturity Metrics for Expert Systems.- Toward developing a tele-diagnosis system on fish disease.- A new method for fish-disease diagnostic problem solving based on parsimonious covering theory and fuzzy inference model.- Effective Prover for Minimal Inconsistency Logic.- Identification of Important News for Exchange Rate Modeling.- Planning and Scheduling.- Autonomous Search and Rescue Rotorcraft Mission Stochastic Planning with Generic DBNs.- Solving multi-objective scheduling problems—An integrated systems approach.

International Federation for Information Processing The IFIP series publishes state-of-the-art results in the sciences and technologies of information and communication.  The scope of the series includes: foundations of computer science; software theory and practice; education; computer applications in technology; communication systems; systems modeling and optimization; information systems; computers and society; computer systems technology; security and protection in information processing systems; artificial intelligence; and human-computer interaction.  Proceedings and post-proceedings of referred international conferences in computer science and interdisciplinary fields are featured.  These results often precede journal publication and represent the most current research.  The principal aim of the IFIP series is to encourage education and the dissemination and exchange of information about all aspects of computing.   For more information about the 300 other books in the IFIP series, please visit www.springer.com.   For more information about IFIP, please visit www.ifip.org.