New PDF release: Agents and Peer-to-Peer Computing: 5th International

By Ben Tse, Raman Paranjape, Samuel R. H. Joseph (auth.), Sam Joseph, Zoran Despotovic, Gianluca Moro, Sonia Bergamaschi (eds.)

ISBN-10: 3540797041

ISBN-13: 9783540797043

This ebook constitutes the completely refereed post-workshop lawsuits of the fifth foreign Workshop on brokers and Peer-to-Peer Computing, AP2PC 2006, held in Hakodate, Japan, in may well 2006, within the context of the fifth overseas Joint convention on independent brokers and Multi-Agent structures, AAMAS 2006.

The 10 revised complete papers and six revised brief papers offered including 1 invited paper have been conscientiously reviewed and chosen from 23 submissions; they're totally revised to include reviewers' reviews and discussions on the workshop. the amount is prepared in topical sections on P2P Infrastructure, brokers in P2P, P2P seek, and applications.

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Extra info for Agents and Peer-to-Peer Computing: 5th International Workshop, AP2PC 2006, Hakodate, Japan, May 9, 2006, Revised and Invited Papers

Example text

The process ends when the resource is found, thus replying to the issuing peer with a Resource Found message (RF ), or when the TTL expires, replying with a Resource Not Found (RNF ) message. 2 DANTE Self-adaptation Mechanism The self-adaptation mechanism used in DANTE is inspired on the results of Guimer` a et al. [4] and of the algorithm proposed by Cholvi el al. [5]. , by means of using a combination of analytical and simulation techniques, were able to characterize the topologies that, given a search mechanism based on random walks and assuming that each node has information about the resources held by its first-order neighbors, minimize the average time needed to perform a search.

On the relationship between network topologies and search performance. Based on that work, DANTE’s self-adaptation mechanism continuously tries to configure the network topology to an efficient configuration depending on the load on the system. Another difference, is that nodes in DANTE do not need to keep track of their neighbors state, nor to implement any explicit flow control technique. Thus, DANTE avoids the communication overhead due to those activities. 5 Conclusions P2P systems are a promising new paradigm, specially suited to situations where there is not a hierarchy among system participants.

To forward query requests peers form a routing network by taking into account the knowledge on the association of peers with key partitions. In short, any DHT is equipped with a function key : P → K that associates peers with keys and, given key(P ), a function partition : K → 2K associating peers with partitions of K, and a function neighbors : K → 2P that associates each peer with a subset of other peers, making thus an overlay graph G [2]. Function key is a hash function mapping a peer’s IP address or a randomly chosen string into a hash value.

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Agents and Peer-to-Peer Computing: 5th International Workshop, AP2PC 2006, Hakodate, Japan, May 9, 2006, Revised and Invited Papers by Ben Tse, Raman Paranjape, Samuel R. H. Joseph (auth.), Sam Joseph, Zoran Despotovic, Gianluca Moro, Sonia Bergamaschi (eds.)


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