Keynote Papers.- Application of Information Processing Technology by Multiagent Simulation.- Cognitive Architectures and Multi-agent Social Simulation.- Full Papers.- A Co-operative Intelligent Assisting Agent Architecture for Web Searching and Desktop Management.- Prisoner's Dilemma Game on Network.- Addressing Constraint Failures in Agent Interaction Protocol.- Reasoning about Success and Failure in Intentional Agents.- Agent-Base Workflow Management System Architecture - An Example on Conference Info System.- Diverse Applications of an Automated Argument System Based on the Logic of Multiple-Valued Argumentation.- Dynamic Interaction Protocol Load in Multi-Agent System Collaboration.- Towards a Component-Based Architecture for TeleAgents.- Development of a Lightweight Middleware Technologies Supporting Mobile Agents.- The Roles of Active Perception in Intelligent Agent Systems.- Fairness in Cooperating Multi-agent Systems - Using Profit Sharing as an Example.- Risk Strategies and Risk Strategy Equilibrium in Agent Interactions Modeled as Normal Repeated 2 ×2 Risk Games.- A Crowd Model for Emergency and Panic Situations: Structure, Characteristics and Behaviours.- Learning the Structure of Utility Graphs Used in Multi-issue Negotiation through Collaborative Filtering.- ARTISTE: Agent Organization Management System for Multi-Agent Systems.- Sensor Management Model Using Multi-agent in Small-Area Sensor Networks.- Conflict Resolution Method for Multi-context Situation.- Multi-auction Approach for Solving Task Allocation Problem.- Using Classification Learning in Companion Modeling.- Modeling a MultiAgent Mobile Robotics Test Bed Using a Biologically Inspired Artificial Immune System.- Deploying Multi-Agents for Intelligent Aspect-Oriented Web Services.- Multi-Agent System Using G-XMDR for Data Synchronization in Pervasive Computing Environments.- An Interval-Based Knowledge Model and Query Language for Temporal Information.- A Petri-Net-Based Modeling Framework for Automated Negotiation Protocols in Electronic Commerce.- Agent Based Interaction Model for Electronic Health Record System.- Implementation of MedVI Agent a Medical Vocabulary Interpreter for Medical Agents.- Multi-agent Cooperation: A Description Logic View.- Enhancing Bidding Strategies in CDAs by Adaptive Judgement of Price Acceptability.- Dealing with Objectives in a Constraint-Based Extension to AgentSpeak(L).

This book constitutes the thoroughly refereed post-conference proceedings of the 8th Pacific Rim International Workshop on Multi-Agents, PRIMA 2005, held in Kuala Lumpur, Malaysia, in September 2005. The 29 revised full papers and 2 keynote papers presented were carefully reviewed and selected from numerous submissions. The papers address many current topics in multi-agent research and development, ranging from theoretical and methodological issues to various applications in different fields.