Agents and Peer-to-Peer Computing: First International by Gianluca Moro, Aris M. Ouksel, Claudio Sartori (auth.),

By Gianluca Moro, Aris M. Ouksel, Claudio Sartori (auth.), Gianluca Moro, Manolis Koubarakis (eds.)

Peer-to-peer (P2P) computing is at present attracting huge, immense public awareness, spurred by way of the recognition of file-sharing structures similar to Napster, Gnutella, and Morpheus. In P2P structures a truly huge variety of self sustaining computing nodes, the friends, depend on one another for prone. P2P networks are rising as a brand new dispensed computing paradigm as a result of their power to harness the computing energy of the hosts composing the community, and since they make their underutilized assets to be had to every other.

This booklet brings jointly 3 specifically commissioned invited articles, an creation, and revised types of the papers provided on the 1st foreign Workshop on brokers and Peer-to-Peer Computing, AP2PC 2002, held in Bologna, Italy in July 2002. The ebook is geared up into topical sections on peer-to-peer companies, discovery and supply of reliable providers, and seek and cooperation in peer-to-peer agent systems.

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Additional info for Agents and Peer-to-Peer Computing: First International Workshop, AP2PC 2002 Bologna, Italy, July 15, 2002 Revised and Invited Papers

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We advocate that using only one word or a flat structure to qualify one of the parts is not sufficient for describing a service request, particularly when faced with unanticipated modifications in the structure of an application. Fig. 6. Description of services Each field of this description is defined as a tree (Fig. 6). Therefore, two branches going out from a node correspond to an OR between the two subtrees, and a branch corresponds to an AND between the upper level and the subtree associated. The tree A in Fig.

Typically, at 17:00 GMT it is not rare to have more than 200 peers connected at the same time to the Gnutella network providing an access to more than 200 gigabytes of data 1 . It is very dynamic. A P2P network is made of peers that have no constraints on their behaviour. For instance, a peer may disconnect anytime, it is then impossible to know a priori if a request will succeed or not. It is heterogeneous. A P2P network may be made of many different programs (programmed by different people on different platforms) disposing of many various connectivity grouped by a P2P interaction protocol.

PCs or PDAs for each access point could not be prepared because of the expense, and also because of the fire prevention laws in Japan. Therefore, it was decided to 42 T. Iwao et al. use a server and multiplex it. The server has policy packages of all the shops and the three tables; shop information table, user favorite table, and user location table. The user location table maintains connections between PDAs and access points. The user favorite table has a set of the users’ favorite categories, and is created for each individual user during registration.

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