Agent Modeling -- Knowledge Level Software Engineering -- Emotions and Personality in Agent Design and Modeling -- The ? Calculus: An Algebraic Agent Language -- Evolving Real-Time Local Agent Control for Large-Scale Multi-agent Systems -- Formal Speci.cation and Veri.cation of Agents -- On the Epistemic Feasibility of Plans in Multiagent Systems Specifications -- On Multi-agent Systems Specification via Deontic Logic -- Agents and Roles: Refinement in Alternating-Time Temporal Logic -- The Computational Complexity of Agent Verification -- Agent Architectures and Languages -- A Goal-Based Organizational Perspective on Multi-agent Architectures -- - A Dynamic Logic Programming Agent Architecture -- Running AgentSpeak(L) Agents on SIM_AGENT -- Agent Communication -- Ontological Overhearing -- Agent Dialogues with Conflicting Preferences -- An Abstract Machine for Classes of Communicating Agents Based on Deduction -- A Formal Semantics for ProxyCommunicative Acts -- Commitment Machines -- Collaborative Planning and Resource Allocation -- Generating Bids for Group-Related Actions in the Context of Prior Commitments -- Dynamic Distributed Resource Allocation: A Distributed Constraint Satisfaction Approach -- Improving Optimality of n Agent Envy-Free Divisions -- Trust and Safety -- Trustworthiness of Information Sources and Information Pedigrees -- Revisiting Asimov’s First Law: A Response to the Call to Arms -- Formal Theories of Negociation -- Formal Theories of Negotiation -- A Stable and Feasible Payoff Division for Coalition Formation in a Class of Task Oriented Domains -- Antisocial Agents and Vickrey Auctions -- Formalizing a Language for Institutions and Norms -- Simple Negotiating Agents in Complex Games: Emergent Equilibria and Dominance of Strategies -- Optimal Negotiation Strategies for Agents with Incomplete Information -- Implicit Negotiation in Repeated Games -- Dialogues for Negotiation: Agent Varieties and Dialogue Sequences -- Agents for Hand-Held, Mobile, or Embdedded Devices -- Agents for Hand-Held, Mobile, or Embedded Devices -- KSACI: A Handheld Device Infrastructure for Agents Communication -- LEAP: A FIPA Platform for Handheld and Mobile Devices -- FIPA-OS Agent Platform for Small-Footprint Devices.

This volume is the eighth in the Intelligent Agents series associated with the ATAL workshops. These workshops on “Agent Theories, Architectures, and L- guages” have established themselves as a tradition, and play the role of small but internationally well-known conferences on the subject, where besides theory per se also integration of theory and practice is in focus. Speci?cally, ATAL - dresses issues of theories of agency, software architectures for intelligent agents, methodologies and programming languages for realizing agents, and software tools for applying and evaluating agent-based systems. ATAL 2001 featured two special tracks in which both the more theoretical / formal and the more practical aspects were present, viz. “Formal Theories of Negotiation”, organized by Frank Dignum, and “Agents for Hand-Held, Mobile, or Embedded Devices”, organized by Tim Finin. There was also an extra session on RoboCup Rescue, organized and presented by Satoshi Tadokoro and Ranjit Nair. ATAL 2001 attracted 68 papers from over 20 countries all over the world, of which 30 were selected for presentation at the workshop and publication in this volume. We invited two outstanding speakers: Fausto Giunchiglia (Trento, Italy) and Tom Dean (Brown, USA).