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In this paper, we address data reconciliation in peer-to-peer (P2P) collaborative applications. We propose P2P-LTR (Logging and Timestamping for Reconciliation) which provides P2P logging and timestamping services for P2P reconciliation over a distributed hash table (DHT). While updating at collaborating peers, updates are timestamped and stored in a highly(More)
This paper presents the XWiki Concerto system, the P2P version of the XWiki server. This system is based on replicating wiki pages on a network of wiki servers. The approach, based on the Woot algorithm, has been designed to be scalable, to support the dynamic aspect of P2P networks and network partitions. These characteristics make our system capable of(More)
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt età la diffusion(More)
We address the problem of optimistic replication forcollaborative text editing in Peer-to-Peer (P2P) systems. This problem is challenging because of concurrent updating at multiple peers and dynamic behavior of peers. Operationaltransformation (OT) is a typical approach used for handlingoptimistic replication in the context of distributed text editing.(More)
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt età la diffusion(More)
This paper describes the demonstration of the XWiki Concerto system. XWiki Concerto is a a P2P wiki that supports mobile users. Each XWiki server is the network is extended with a replication manager that propagates local changes to remote servers and merges concurrent changes. The demonstration is based on a scenario in which different servers are used to(More)
RESUME : Dans ce papier, nous traitons le problème de gestion de stocks avec transshipment dans un réseau de distribution multi sites et multi échelons dans lequel le centre de distribution et les détaillants gèrent leurs stocks selon la politique (R, s, S). Les détaillants sont confrontés à des demandes clients aléatoires et le centre de distribution(More)
XWiki Concerto is a research project aiming at evolving the open-source XWiki engine toward a P2P architecture supporting mobility, offline work and replication of content across a large number of peers. This research brings XWiki the capacity to (i) run on a fault tolerant P2P architecture allowing to scale to millions of users using a secure solution(More)