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

By Arturo Crespo, Hector Garcia-Molina (auth.), Gianluca Moro, Sonia Bergamaschi, Karl Aberer (eds.)

ISBN-10: 3540297553

ISBN-13: 9783540297550

Peer-to-peer (P2P) computing is attracting huge, immense media awareness, spurred by means of the recognition of dossier sharing platforms akin to Napster, Gnutella, and Morpheus. The friends are self sustaining, or as a few name them, top quality electorate. P2P networks are rising as a brand new disbursed computing paradigm for his or her capability to harness the computing strength of the hosts composing the community and make their under-utilized assets on hand to others. even if researchers engaged on allotted computing, multiagent platforms, databases and networks were utilizing comparable ideas for a very long time, it is just lately that papers inspired by means of the present P2P paradigm have begun showing in fine quality meetings and workshops. examine in agent platforms particularly seems to be so much correct simply because, when you consider that their inception, multiagent structures have consistently been considered networks of associates. The multiagent paradigm can therefore be superimposed at the P2P structure, the place brokers embrace the outline of the duty environments, the decision-support services, the collective habit, and the interplay protocols of every peer. The emphasis during this context on decentralization, person autonomy, ease and pace of development that provides P2P its benefits additionally results in major strength difficulties. such a lot admired between those difficulties 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 structures lies in how good they scale alongside numerous dimensions, together with complexity, heterogeneity of associates, robustness, site visitors redistribution, and so on.

This quantity provides the totally revised papers offered on the 3rd foreign Workshop on brokers and Peer-to-Peer Computing, AP2PC 2004, held in long island urban on July 19, 2004 within the context of the 3rd overseas Joint convention on self sufficient brokers and Multi-Agent platforms (AAMAS 2004). the amount is prepared in topical sections on P2P networks and seek functionality, emergent groups and social behaviours, semantic integration, cellular P2P structures, adaptive structures, agent-based source discovery, in addition to belief and reputation.

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Extra info for Agents and Peer-to-Peer Computing: Third International Workshop, AP2PC 2004, New York, NY, USA, July 19, 2004, Revised and Invited Papers

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2 Simplified DTN Architecture As defined by [2] and [4], a general delay-tolerant network provides several different classes of service and delivery options. These include Bulk, Normal, and Expedited service and Return Receipt and Secure delivery options, among others. In addition, a DTN provides multi-hop routing across several regions using name tuples. In this paper, we provide an implementation of a simplified DTN architecture than can be extended to the general case. Our architecture consists of a single Reliable class of messaging service and we use 160-bit hash keys for names.

Pop queue name removes and returns the first element from the queue. Push queue name “value” pushes an element onto the queue queue name consisting of the string “value”. QueueInfo queue name used for debugging. Return a string representation of the queue size and contents. Where queue name return the list of queue replicas. This is a superset of the nodes returned by the Alive command. 21 2. 35 3. 4 Fig. 3. This figure shows the steps taken during a lookup operation on the Reliable Naming Service.

Its generality and simplicity may give a good handle on designing efficient informed search algorithms for small-world graphs that outperform BFS. Another important step is to investigate unstructured topologies to specifically support GAPS. L. A. Sheth, and K. B¨ orner Finally, an investigation of recent results which have applied percolation theory to the problem of search in power-law graphs [5,22] can profitably be pursued in our simulation framework. Acknowledgments. We thank Beth Plale, Cathy Wyss, the reviewers, the Indiana University Database Group, the AP2PC 2004 workshop participants, and Gopal Pandurangan for their feedback and discussions on this paper.

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Agents and Peer-to-Peer Computing: Third International Workshop, AP2PC 2004, New York, NY, USA, July 19, 2004, Revised and Invited Papers by Arturo Crespo, Hector Garcia-Molina (auth.), Gianluca Moro, Sonia Bergamaschi, Karl Aberer (eds.)

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