Read e-book online Agents and Peer-to-Peer Computing: Second International PDF

By Beng Chin Ooi, Wee Siong Ng, Kian-Lee Tan, AoYing Zhou (auth.), Gianluca Moro, Claudio Sartori, Munindar P. Singh (eds.)

ISBN-10: 3540240535

ISBN-13: 9783540240532

ISBN-10: 354025840X

ISBN-13: 9783540258407

Peer-to-peer (P2P) computing is at present attracting huge, immense public realization, spurred by means of the recognition of file-sharing structures corresponding to Napster, Gnutella, Morpheus, Kaza, and a number of other others. In P2P structures, a truly huge variety of self sufficient computing nodes, the friends, depend on one another for prone. P2P networks are rising as a brand new allotted computing paradigm as a result of their power to harness the computing strength and the garage potential of the hosts composing the community, and since they detect a totally open decentralized setting the place all people can take part autonomously. even though researchers engaged on disbursed computing, multiagent platforms, databases, and networks were utilizing related ideas for a very long time, it is just lately that papers influenced by means of the present P2P paradigm have begun showing in top of the range meetings and workshops. specifically, learn on agent platforms seems to be so much proper simply because multiagent platforms have continually been considered networks of self sufficient friends for the reason that their inception. brokers, which might be superimposed at the P2P structure, embrace the outline of activity environments, decision-support services, social behaviors, belief and popularity, and interplay protocols between friends. The emphasis on decentralization, autonomy, ease, and pace of progress that provides P2P its merits additionally results in major capability difficulties. such a lot favorite between those are coordination – the power of an agent to make judgements by itself activities within the context of actions of alternative brokers, and scalability – the price of the P2P platforms in how good they self-organize as a way to scale alongside a number of dimensions, together with complexity, heterogeneity of associates, robustness, site visitors redistribution, etc.

This publication brings jointly an creation, 3 invited articles, and revised models of the papers provided on the moment overseas Workshop on brokers and Peer-to-Peer Computing, AP2PC 2003, held in Melbourne, Australia, July 2003.

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Additional resources for Agents and Peer-to-Peer Computing: Second International Workshop, AP2PC 2003, Melbourne, Australia, July 14, 2003, Revised and Invited Papers

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The goal of the second experiment is to see if the exchange of recommendation values helps agents to achieve better performance (defined as the percentage of successful interactions with file providers, which is the number of successful interactions divided by the total number of interactions). This is in fact a measure of confidence in peers’ forecast, since peers interact with a file provider only Successful recommendations (%) Bayesian Network Trust Model in Peer-to-Peer Networks TRBN mean TR mean TRBN standard deviation TR standard deviation 31 70 60 50 40 30 20 10 0 100 200 300 400 500 600 700 800 900 1000 The number of interactions Fig.

Wt and ws are the weights to indicate how the user values the importance of the recommendation from trustworthy references and from unknown references. Since agents often have different preferences and points of view, the agent’s trustworthy acquaintances are those agents that share similar preferences and viewpoints with the agent most of time. The agent should weight the recommendations from its trustworthy acquaintances higher than those recommendations from strangers. Given a threshold θ, if the total recommendation value is greater than θ, the agent will interact with the file provider; otherwise, not.

1, is composed of three layers: Application Service Layer, System Service Layer, and Base Layer. The latter two constitute our peer-to-peer platform (henceforth referred to as MyP2P), over which applications can be built. In our design, applications are implemented as mobile agents [2, 3] in the Application Service Layer.

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Agents and Peer-to-Peer Computing: Second International Workshop, AP2PC 2003, Melbourne, Australia, July 14, 2003, Revised and Invited Papers by Beng Chin Ooi, Wee Siong Ng, Kian-Lee Tan, AoYing Zhou (auth.), Gianluca Moro, Claudio Sartori, Munindar P. Singh (eds.)


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