By Beng Chin Ooi, Wee Siong Ng, Kian-Lee Tan, AoYing Zhou (auth.), Gianluca Moro, Claudio Sartori, Munindar P. Singh (eds.)
Peer-to-peer (P2P) computing is at present attracting huge, immense public consciousness, spurred by means of the recognition of file-sharing structures reminiscent of Napster, Gnutella, Morpheus, Kaza, and a number of other others. In P2P platforms, a truly huge variety of self sustaining computing nodes, the friends, depend upon one another for companies. P2P networks are rising as a brand new dispensed computing paradigm as a result of their capability to harness the computing strength and the garage means of the hosts composing the community, and since they discover a totally open decentralized setting the place every body can take part autonomously. even supposing researchers engaged on disbursed computing, multiagent structures, databases, and networks were utilizing comparable ideas for a very long time, it's only lately that papers influenced through the present P2P paradigm have all started showing in prime quality meetings and workshops. particularly, study on agent structures seems to be such a lot appropriate simply because multiagent structures have consistently been regarded as networks of self sufficient friends considering that their inception. brokers, which might be superimposed at the P2P structure, include the outline of activity environments, decision-support functions, social behaviors, belief and attractiveness, and interplay protocols between friends. The emphasis on decentralization, autonomy, ease, and velocity of progress that offers P2P its benefits additionally results in major power difficulties. so much admired between those are coordination – the facility of an agent to make judgements by itself activities within the context of actions of different brokers, and scalability – the worth of the P2P platforms in how good they self-organize so one can scale alongside a number of dimensions, together with complexity, heterogeneity of co-workers, robustness, site visitors redistribution, etc.
This booklet brings jointly an advent, 3 invited articles, and revised types of the papers offered on the moment foreign Workshop on brokers and Peer-to-Peer Computing, AP2PC 2003, held in Melbourne, Australia, July 2003.
Read or Download Agents and Peer-to-Peer Computing: Second International Workshop, AP2PC 2003, Melbourne, Australia, July 14, 2003, Revised and Invited Papers PDF
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Extra info for Agents and Peer-to-Peer Computing: Second International Workshop, AP2PC 2003, Melbourne, Australia, July 14, 2003, Revised and Invited Papers
Anonymity is out of scope in monolithic systems, and in client-server systems anonymity is not assumed. However, in the latter systems, users can run anonymizers on clients, thus gaining anonymity. In both P2P and client-server systems, running sniffers on network nodes can reveal identities for which anonymity was initially sought. Hence, Anonymity is not unique to, and can be violated in, P2P systems. 3 Weaknesses Thus far we have presented advantages, or at least probable advantages, of P2P systems.
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.
Depending on the situation, a peer may need to consider its trust in a speciﬁc aspect of another peer’s capability or in a combination of multiple aspects. Bayesian networks provide a ﬂexible method to represent diﬀerentiated trust and combine diﬀerent aspects of trust. 1 Introduction In heterogenous open P2P systems, some peers might be buggy and some might be malicious and provide bad services. Since there is no centralized node to serve as an authority to supervise peers’ behaviors and punish peers that behave badly, malicious peers have an incentive to harm other peers to get more beneﬁt because they can get away with their bad behaviors.