Knowledge, Learning, and Machine Intelligence (D. Michie). Relating Images, Concepts, and Words (D.L. Waltz). Methods for an Expert System to Access and External Database (G.W. Ernst, X. He). Perceptual Representation and Reasoning (B. Chandrasekaran, N.H. Narayanan). Feature Based, Collision Free Inspection Path Planning (F.L. Merat, O. Jeon). Of Using Constraint Logic Programming for Design of Mechanical Parts (L. Sterling). Explanation Facility for Neural Networks (L.F. Pau, T. Goetzsche). CompileTime Type Prediction and Type Checking for Common Lisp Programs (R. Beer). Cognitive Neuroethology (H.J. Chiel). Generating Polytope Intersection Configurations from a Symbolic Description Using CLP (G.M. Radack, M.J. Andersson). Agent (P.J. Drongowski). Index.

This book constitutes the refereed proceedings of the 11th International Workshop on Cooperative Information Agents, CIA 2007, held in Delft, The Netherlands, September 19-21, 2007.

The 19 revised full papers presented together with 4 invited papers were carefully reviewed and selected from 38 submissions. The papers are organized in topical sections on Information Search and Processing, Applications, Rational Cooperation, Interaction and Cooperation and Trust.

Agent metaphors and technologies are increasingly adopted to harness and g- ernthecomplexityoftoday'ssystems.Asaconsequence, thegrowingcomplexity of agent systems calls for models and technologies that promote system p- dictability and enable feature discovery and veri?cation. Formal methods and declarative technologies have recently attracted a growing interest as a means to address such issues. The aim of the DALT 2003 workshop was two-fold. On the one hand, we wanted to foster a discussion forum to export such techniques into the broader communityofagentresearchersandpractitioners.Ontheotherhand, wewanted to bring in the issues of real-world, complex, and possibly large-scale agent s- tem design in the perspective of formal methods and declarative technologies. Thanks to the very high quality of our program committee, we managed to put together a rich program, including three technical sessions and two panel sessions: TheUseofDeclarativeProgrammingforAgent-OrientedSoftwareEn- neering, moderated by Leon Sterling and Andrea Omicini, and Declarative and Logic-Based Technology for Agent Reasoning and Interactions, organized and moderated by Rafael Bordini and Wiebe van der Hoek, with the participation of ?ve invited panelists. This bookcontainstherevisedandextendedversionsofthe paperspresented at the workshop, as well as three invited contributions by leading researchers of the ?eld. It is composed of three parts: (i) software engineering and multi-agent system prototyping, (ii) agent reasoning, BDI logics and extensions, and (iii) social aspects of multi-agent systems.