Get Data Management in Grid and Peer-to-Peer Systems: 4th PDF

By Julio Araujo, Frédéric Giroire, Julian Monteiro (auth.), Abdelkader Hameurlain, A Min Tjoa (eds.)

ISBN-10: 3642229468

ISBN-13: 9783642229466

ISBN-10: 3642229476

ISBN-13: 9783642229473

This publication constitutes the refereed lawsuits of the 4th foreign convention on info administration in Grid and Peer-to-Peer platforms, Globe 2011, held in Toulouse, France, in September 2011 along with DEXA 2011. The 12 revised complete papers awarded have been rigorously reviewed and chosen from 18 submissions. The papers are prepared in topical sections on info garage and replication, semantics for P2P structures and function assessment, source discovery and routing in cellular P2P networks, and knowledge circulation structures and large-scale allotted applications.

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Extra info for Data Management in Grid and Peer-to-Peer Systems: 4th International Conference, Globe 2011, Toulouse, France, September 1-2, 2011, Proceedings

Sample text

There is a quick drop, from k = 3 to 6 in that number of false positives: this indicates that the majority of cycles on this topology could be found relatively close from nodes (characteristic of clustered networks). e. discover the full graph) to correctly assess its criticality. In that light, k could be automatically set to a fraction of the diameter, which is computed on a regular basis using gossip. net Distributed Overlay Maintenance with Application to Data Consistency 1800 5000 1600 1600 4500 1400 1400 4000 1200 1200 3500 Estimated # for the network false positives 1000 1000 800 800 no repair cut-nodes critical-nodes (k=6) random excluding disconnected nodes of d=1 3000 Size Estimated # of cut nodes 1800 2500 massive disconnection 600 actual # 400 200 400 200 0 0 2 4 6 8 10 k 12 14 16 5000 4500 4000 3500 3000 2500 2000 600 33 2000 1500 1500 1000 1000 500 500 0 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Time (1 random removal per unit time) Fig.

Cerqueus, S. Cazalens, and P. Lamarre Fig. 2. Two ontologies o1 and o2 composed of concepts, properties and relations Definition 3 (Peer-to-ontology mapping). Given a P2P system S = P, N and a set of ontologies O, a peer-to-ontology mapping is a function μ : P → O, mapping each peer to one ontology. In order to understand incoming queries each peer must know correspondences. We denote by κp the set of correspondences stored by a peer p and κp (o, o ) denotes the subset of κp concerning ontologies o and o .

Commun. ACM 52(1), 40–44 (2009) 25. : Database replication techniques: A three parameter classification. In: Proc. of the 19th IEEE Symposium on Reliable Distributed Systems, pp. com Abstract. The proliferation of connected device rises new challenges for data maintenance in terms of efficiency, scalability and security. In the context of data replication at a large scale, weak consistency has been adopted as a standard in uniformly trusted systems. Recently, a distributed framework has been proposed to handle untrusted systems, by adding access control at the file level.

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Data Management in Grid and Peer-to-Peer Systems: 4th International Conference, Globe 2011, Toulouse, France, September 1-2, 2011, Proceedings by Julio Araujo, Frédéric Giroire, Julian Monteiro (auth.), Abdelkader Hameurlain, A Min Tjoa (eds.)


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