Agents and Peer-to-Peer Computing : 6th International Workshop, AP2PC 2007, Honululu, Hawaii, USA, May 14-18, 2007, Revised and Selected Papers

This book constitutes the thoroughly refereed post-workshop proceedings of the 6th International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2007, held in Honululu, Hawaii, USA, in May 2007, in the context of the 6th International Joint Conference on Autonomous Agents and Multi-Agent Systems, AAMAS 2007. The 8 revised full papers presented together with 1 summary paper were carefully reviewed and selected from 14 initial submissions; they are fully revised to incorporate reviewers' comments and discussions at the workshop. The volume is organized in topical sections on agent and peer trust, performance and testing, grid and distributed computing, as well as location and search services.

Peer-to-peer (P2P) computing is attracting enormous media attention, spurred by the popularity of file sharing systems such as Napster, Gnutella, and Morpheus. The peers are autonomous, or as some call them, first-class citizens. P2P networks are emerging as a new distributed computing paradigm for their potential to harness the computing power of the hosts composing the network and make their under-utilized resources available to others. Although researchers working on distributed computing, multiagent systems, databases and networks have been using similar concepts for a long time, it is only recently that papers motivated by the current P2P paradigm have started appearing in high-quality conferences and workshops. Research in agent systems in particular appears to be most relevant because, since their inception, multiagent systems have always been thought of as networks of peers. The multiagent paradigm can thus be superimposed on the P2P architecture, where agents embody the description of the task environments, the decision-support capabilities, the collective behavior, and the interaction prools of each peer. The emphasis in this context on decentralization, user autonomy, ease and speed of growth that gives P2P its advantages also leads to significant potential problems. Most prominent among these problems are coordination, the ability of an agent to make decisions on its own actions in the context of activities of other agents, and scalability, the value of the P2P systems lies in how well they scale along several dimensions, including complexity, heterogeneity of peers, robustness, traffic redistribution, and so on.

This volume presents the fully revised papers presented at the Third International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2004, held in New York City on July 19, 2004 in the context of the Third International Joint Conference on Autonomous Agents and Multi-Agent Systems (AAMAS 2004). The volume is organized in topical sections on P2P networks and search performance, emergent communities and social behaviours, semantic integration, mobile P2P systems, adaptive systems, agent-based resource discovery, as well as trust and reputation.

Peer-to-peer (P2P) computing is attracting enormous media attention, spurred by the popularity of file sharing systems such as Napster, Gnutella, and Morpheus. The peers are autonomous, or as some call them, first-class citizens. P2P networks are emerging as a new distributed computing paradigm for their potential to harness the computing power of the hosts composing the network and make their under-utilized resources available to others. Although researchers working on distributed computing, multiagent systems, databases and networks have been using similar concepts for a long time, it is only recently that papers motivated by the current P2P paradigm have started appearing in high-quality conferences and workshops. Research in agent systems in particular appears to be most relevant because, since their inception, multiagent systems have always been thought of as networks of peers. The multiagent paradigm can thus be superimposed on the P2P architecture, where agents embody the description of the task environments, the decision-support capabilities, the collective behavior, and the interaction protocols of each peer. The emphasis in this context on decentralization, user autonomy, ease and speed of growth that gives P2P its advantages also leads to significant potential problems. Most prominent among these problems are coordination, the ability of an agent to make decisions on its own actions in the context of activities of other agents, and scalability, the value of the P2P systems lies in how well they scale along several dimensions, including complexity, heterogeneity of peers, robustness, traffic redistribution, and so on. This volume presents the fully revised papers presented at the Third International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2004, held in New York City on July 19, 2004 in the context of the Third International Joint Conference on Autonomous Agents and Multi-Agent Systems (AAMAS 2004). The volume is organized in topicalsections on P2P networks and search performance, emergent communities and social behaviours, semantic integration, mobile P2P systems, adaptive systems, agent-based resource discovery, as well as trust and reputation. Peer-to-peer (P2P) computing is attracting enormous media attention, spurred by the popularity of file sharing systems such as Napster, Gnutella, and Morpheus. The peers are autonomous, or as some call them, first-class citizens. P2P networks are emerging as a new distributed computing paradigm for their potential to harness the computing power of the hosts composing the network and make their under-utilized resources available to others. Although researchers working on distributed computing, multiagent systems, databases and networks have been using similar concepts for a long time, it is only recently that papers motivated by the current P2P paradigm have started appearing in high-quality conferences and workshops. Research in agent systems in particular appears to be most relevant because, since their inception, multiagent systems have always been thought of as networks of peers. The multiagent paradigm can thus be superimposed on the P2P architecture, where agents embody the description of the task environments, the decision-support capabilities, the collective behavior, and the interaction protocols of each peer. The emphasis in this context on decentralization, user autonomy, ease and speed of growth that gives P2P its advantages also leads to significant potential problems. Most prominent among these problems are coordination, the ability of an agent to make decisions on its own actions in the context of activities of other agents, and scalability, the value of the P2P systems lies in how well they scale along several dimensions, including complexity, heterogeneity of peers, robustness, traffic redistribution, and so on. This volume presents the fully revised papers presented at the Third International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2004, held in New York City on July 19, 2004 in the context of the Third International Joint Conference on Autonomous Agents and Multi-Agent Systems (AAMAS 2004). The volume is organized in topical sections on P2P networks and search performance, emergent communities and social behaviours, semantic integration, mobile P2P systems, adaptive systems, agent-based resource discovery, as well as trust and reputation

peer-to-peer (p2p) Computing Is Currently Attracting Enormous Public Attention, Spurred By The Popularity Of File-sharing Systems Such As Napster, Gnutella, Morpheus, Kaza, And Several Others. In P2p Systems, A Very Large Number Of Autonomous Computing Nodes, The Peers, Rely On Each Other For Services. P2p Networks Are Emerging As A New Distributed Computing Paradigm Because Of Their Potential To Harness The Computing Power And The Storage Capacity Of The Hosts Composing The Network, And Because They Realize A Completely Open Decentralized Environment Where Everybody Can Join In Autonomously. Although Researchers Working On Distributed Computing, Multiagent Systems, Databases, And Networks Have Been Using Similar Concepts For A Long Time, It Is Only Recently That Papers Motivated By The Current P2p Paradigm Have Started Appearing In High Quality Conferences And Workshops. In Particular, Research On Agent Systems Appears To Be Most Relevant Because Multiagent Systems Have Always Been Thought Of As Networks Of Autonomous Peers Since Their Inception. Agents, Which Can Be Superimposed On The P2p Architecture, Embody The Description Of Task Environments, Decision-support Capabilities, Social Behaviors, Trust And Reputation, And Interaction Prools Among Peers. The Emphasis On Decentralization, Autonomy, Ease, And Speed Of Growth That Gives P2p Its Advantages Also Leads To Significant Potential Problems. Most Prominent Among These Are Coordination—the Ability Of An Agent To Make Decisions On Its Own Actions In The Context Of Activities Of Other Agents, And Scalability—the Value Of The P2p Systems In How Well They Self-organize So As To Scale Along Several Dimensions, Including Complexity, Heterogeneity Of Peers, Robustness, Traffic Redistribution, Etc.

this Book Brings Together An Introduction, Three Invited Articles, And Revised Versions Of The Papers Presented At The Second International Workshop On Agents And Peer-to-peer Computing, Ap2pc 2003, Held In Melbourne, Australia, July 2003.

Peer-to-peer (P2P) computing is currently attracting enormous public attention, spurred by the popularity of file-sharing systems such as Napster, Gnutella, Morpheus, Kaza, and several others. In P2P systems, a very large number of autonomous computing nodes, the peers, rely on each other for services. P2P networks are emerging as a new distributed computing paradigm because of their potential to harness the computing power and the storage capacity of the hosts composing the network, and because they realize a completely open decentralized environment where everybody can join in autonomously. Although researchers working on distributed computing, multiagent systems, databases, and networks have been using similar concepts for a long time, it is only recently that papers motivated by the current P2P paradigm have started appearing in high quality conferences and workshops. In particular, research on agent systems appears to be most relevant because multiagent systems have always been thought of as networks of autonomous peers since their inception. Agents, which can be superimposed on the P2P architecture, embody the description of task environments, decision-support capabilities, social behaviors, trust and reputation, and interaction protocols among peers. The emphasis on decentralization, autonomy, ease, and speed of growth that gives P2P its advantages also leads to significant potential problems. Most prominent among these are coordination - the ability of an agent to make decisions on its own actions in the context of activities of other agents, and scalability - the value of the P2P systems in how well they self-organize so as to scale along several dimensions, including complexity, heterogeneity of peers, robustness, traffic redistribution, etc. This book brings together an introduction, three invited articles, and revised versions of the papers presented at the Second International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2003, held in Melbourne, Australia, July 2003 The International Conference on Informatics in Secondary Schools: Evolution and Perspective (ISSEP) is an emerging forum for researchers and practitioners in the area of computer science education with a focus on secondary schools. The ISSEP series started in 2005 in Klagenfurt, and continued in 2006 in Vilnius, and in 2008 in Torun. ́ The 4th ISSEP took part in Zurich. This volume presents 4 of the 5 invited talks and 14 regular contributions chosen from 32 submissions to ISSEP 2010. The ISSEP conference series is devoted to all aspects of computer science teaching. In the preface of the proceedings of ISSEP 2006, Roland Mittermeir wrote: “ISSEP aims at educating ‘informatics proper'by showing the beauty of the discipline, hoping to create interest in a later professional career in c- puting, and it will give answers di?erent from the opinion of those who used to familiarize pupils with the basics of ICT in order to achieve computer lit- acy for the young generation. ” This is an important message at this time, when several countries have reduced teaching informatics to educating about current softwarepackagesthatchangefromyeartoyear. ThegoalofISSEPistosupport teaching of the basic concepts and methods of informatics, thereby making it a subject in secondary schools that is comparable in depth and requirements with mathematics or natural sciences. As we tried to present in our book “Algori- mic Adventures. Peer-to-peer (p2p) Computing Is Currently Attracting Enormous Public Attention, Spurred By The Popularity Of File-sharing Systems Such As Napster, Gnutella, And Morpheus. In P2p Systems A Very Large Number Of Autonomous Computing Nodes, The Peers, Rely On Each Other For Services. P2p Networks Are Emerging As A New Distributed Computing Paradigm Because Of Their Potential To Harness The Computing Power Of The Hosts Composing The Network, And Because They Make Their Underutilized Resources Available To Each Other. This Book Brings Together Three Especially Commissioned Invited Articles, An Introduction, And Revised Versions Of The Papers Presented At The 1st International Workshop On Agents And Peer-to-peer Computing, Ap2pc 2002, Held In Bologna, Italy In July 2002. The Book Is Organized Into Topical Sections On Peer-to-peer Services, Discovery And Delivery Of Trustworthy Services, And Search And Cooperation In Peer-to-peer Agent Systems. Agents And Peer-to-peer Computing: A Promising Combination Of Paradigms / Gianluca Moro, Aris M. Ouksel And Claudio Sartori -- Peer-to-peer Computing For Information Systems / Munindar P. Singh -- Peer Services: From Description To Invocation / Manuel Oriol. Gianluca Moro, Manolis Koubarakis (eds.). Includes Bibliographical References And Index. Annotation This book constitutes the refereed proceedings of the fourth International Conference on Informatics in Secondary Schools - Evolution and Perspectives, ISSEP 2010, held in Zurich, Switzerland in January 2010. The 14 revised full papers presented together with 6 invited papers were carefully reviewed and selected from 32 submissions. A broad variety of topics related to teaching informatics in secondary schools is addressed ranging from national experience reports to paedagogical and methodological issues. Contributions solicited cover a variety of topics including but not limited to accessibility, assessment, classroom management, communication skills, computer science contests, computers and society, courseware, curriculum issues, research in informatics education, diagnostic teaching, empirical methods, ethical/societal issues, gender and diversity issues, high school/college transition issues, information systems, information technology, interdisciplinary courses and projects, laboratory/active learning, multimedia, object-oriented issues, pedagogy, student retention and persistence, role of programming and algorithmics, using emerging instructional, technologies and web-based techniques/web services Front Matter....Pages - What Agents and Peers Have to Offer Each Other: A Partial History of the AP2PC Workshop....Pages 1-12 Information Sharing among Autonomous Agents in Referral Networks....Pages 13-26 Performance Prediction in Peer-to-Peer MultiAgent Networks....Pages 27-40 P2P Agent Platform: Implementation and Testing....Pages 41-54 A Dynamic Pricing and Bidding Strategy for Autonomous Agents in Grids....Pages 55-71 Agent-Based Autonomous Result Verification Mechanism in Desktop Grid Systems....Pages 72-84 Enabling Grassroots Distributed Computing with CompTorrent....Pages 85-96 Design of a Secure and Decentralized Location Service for Agent Platforms....Pages 97-109 Flexible Bloom Filters for Searching Textual Objects....Pages 110-121 Back Matter....Pages - Paper -- What Agents and Peers Have to Offer Each Other: A Partial History of the AP2PC Workshop -- Agent and Peer Trust -- Information Sharing among Autonomous Agents in Referral Networks -- Performance and Testing -- Performance Prediction in Peer-to-Peer MultiAgent Networks -- P2P Agent Platform: Implementation and Testing -- Grid and Distributed Computing -- A Dynamic Pricing and Bidding Strategy for Autonomous Agents in Grids -- Agent-Based Autonomous Result Verification Mechanism in Desktop Grid Systems -- Enabling Grassroots Distributed Computing with CompTorrent -- Location and Search Services -- Design of a Secure and Decentralized Location Service for Agent Platforms -- Flexible Bloom Filters for Searching Textual Objects Annotation This book constitutes the thoroughly refereed post-workshop proceedings of the 5th International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2006, held in Hakodate, Japan, in May 2006, in the context of the 5th International Joint Conference on Autonomous Agents and Multi-Agent Systems, AAMAS 2006. The 10 revised full papers and 6 revised short papers presented together with 1 invited paper were carefully reviewed and selected from 23 submissions; they are fully revised to incorporate reviewers' comments and discussions at the workshop. The volume is organized in topical sections on P2P Infrastructure, agents in P2P, P2P search, and applications

This book constitutes the thoroughly refereed post-proceedings of the 4th International Workshop on Agents and Peer-to-Peer Computing, AP2PC 2005, held in Utrecht, Netherlands, July 2005, in the context of the 4th International Joint Conference on Autonomous Agents and Multi-Agent Systems, AAMAS 2005. The 13 revised full papers cover trust and reputation, P2P infrastructure, semantic infrastructure, as well as community and mobile applications.

Agent and Peer-to- (P2P) are two paradigrns that realize the real power of computing through autonomous, distributed and dynamic systems. Paradigm integration and challenges Trust Self-organization Incentives Search and systems Adaptive applications Mobile agents.