Advances in Artificial Intelligence

Rethinking and reinventing Artificial Intelligence from the perspective of human-centered computational artifacts.- Automatic documentation generation: Including examples.- Market-oriented programming (abstract).- Belief increasing in SKL model frames.- Sensitivity of combination schemes under conflicting conditions and a new method.- Two conditional logics for defeasible inference: A comparison preliminary version.- Underlying semantics for the assessment of Reiter's solution to the frame problem.- Modeling intentions with extended logic programming.- Labelled theorem proving for substructural logics.- Labelled abduction.- PROMAL: Programming in modal action logic.- A goal directed reasoning for semi-normal default theories.- Towards new learning strategies in intelligent tutoring systems.- Modeling the influence of non-changing quantities.- Mathema: A learning environment based on a multi-agent architecture.- A general model of dialogue interpretation for concept tutoring systems.- Knowledge based clustering of partially characterized objects.- Constructing the extensional representation of an intensional domain theory in inductive logic programming.- A generic algorithm for learning rules with hierarchical exceptions.- A neural model for the visual attention phenomena.- Learning rare categories in backpropagation.- An automatic adaptive neurocomputing algorithm for time series prediction.- A computational approach to situation theory based on logic programming to design cognitive agents.- Measuring agreement and harmony in multi-agent societies: A first approach.- Detecting the opportunities of learning from the interactions in a society of organizations.- Exploiting social reasoning to enhance adaptation in open multi-agent systems.- A system for aiding discovery: Mechanisms for knowledge generation.- On a composite formalism and approach to presenting the knowledge content of a relational database.- Method for knowledge acquisition from multiple experts.- A conceptual model for a knowledge base homogeneously stored in a database environment.- A hierarchical description of the Portuguese verb.- TALISMAN: A multi-agent system for natural language processing.- Part-of-speech tagging for portuguese texts.- Quantification and cognitive constraints in natural language understanding.