This book constitutes the refereed proceedings of the scientific track of the 7th Congress of the Italian Association for Artificial Intelligence, AI*IA 2001, held in Bari, Italy, in September 2001.
The 25 revised long papers and 16 revised short papers were carefully reviewed and selected for inclusion in the volume. The papers are organized in topical sections on machine learning; automated reasoning; knowledge representation; multi-agent systems; natural language processing; perception, vision, and robotics; and planning and scheduling.

Machine Learning.- A Monte Carlo Approach to Hard Relational Learning Problems.- Boosting as a Monte Carlo Algorithm.- Stepwise Induction of Model Trees.- Evaluation Methods for Focused Crawling.- A Knowledge-Based Neurocomputing Approach to Extract Refined Linguistic Rules from Data.- RBF Networks Exploiting Supervised Data in the Adaptation of Hidden Neuron Parameters.- A New Machine Learning Approach to Fingerprint Classification.- An Automatic Accompanist Based on Hidden Markov Models.- Resampling vs Reweighting in Boosting a Relational Weak Learner.- Learning Logic Models for Automated Text Categorization.- User Profiling in an Application of Electronic Commerce.- Automated Reasoning.- Computing Spatial Similarity by Games.- An Analysis of Backjumping and Trivial Truth in Quantified Boolean Formulas Satisfiability.- Abduction with Penalization in Logic Programming.- Causal Simulation and Diagnosis of Dynamic Systems.- Critical Parallelization of Local Search for MAX-SAT.- Product Design as Product Revise: The Case of Chemical Compounds.- Knowledge Representation.- Belief Revision and the Ramsey Test: A Solution.- Supporting Product Configuration in a Virtual Store.- Characterising Concept's Properties in Ontologies.- Multi-agent Systems.- Reasoning about Dynamic Scenes Using Autonomous Agents.- Tuning the Collaboration Level with Autonomous Agents: A Principled Theory.- The Definition of Legal Relations in a BDI Multiagent Framework.- Reasoning about Actions in a Multiagent Domain.- L*MASS: A Language for Situated Multi-agent Systems.- An Interactive System for Generating Arguments in Deceptive Communication.- An Agent Based Approach to Virtual Market Place Simulation.- Natural Language Processing.- Open Domain Question/Answering on the WEB.- User-Adapted ImageDescriptions from Annotated Knowledge Sources.- Wide Coverage Incremental Parsing by Learning Attachment Preferences.- Flexible Parsing Architectures for NLP Applications.- Information Presentation Adapted to the "User in Context".- A Hybrid Approach to Optimize Feature Selection Process in Text Classification.- Perception, Vision, and Robotics.- Concepts for Anchoring in Robotics.- Symbolic and Conceptual Representation of Dynamic Scenes: Interpreting Situation Calculus on Conceptual Spaces.- A Non-traditional Omnidirectional Vision System with Stereo Capabilities for Autonomous Robots.- Architectural Scenes Reconstruction from Uncalibrated Photos and Map Based Model Knowledge.- A SOM/ARSOM Hierarchy for the Description of Dynamic Scenes.- Planning and Scheduling.- A Constraint-Based Architecture for Flexible Support to Activity Scheduling.- Planning and Execution in Dynamic Environments.- An Agent Architecture for Planning in a Dynamic Environment.