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Publications associées (51)

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Generic construction of consensus algorithms for benign and Byzantine faults

André Schiper, Zarko Milosevic, Olivier Rütti

The paper proposes a generic consensus algorithm that highlights the basic and common features of known consensus algorithms. The parameters of the generic algorithm encapsulate the core differences between various consensus algorithms, including leader-ba ...

2009

Segmenting memory colours

Sabine Süsstrunk, Francisco Estrada

Memory colours refer to the colour of specific image classes that have the essential attribute of being perceived in a consistent manner by human observers. In colour correction or rendering tasks, this consistency implies that they have to be faithfully r ...

2008

A law of the iterated logarithm for fractional Brownian motions

Thomas Mountford, Driss Baraka

We show that for a class of Gaussian processes indexed by one dimensional time, the local times obey the behavior conjectured by Xiao. ...

2008

Distributed Consensus, Revisited

Rachele Fuzzati, Massimo Merro

We provide a novel model to formalize a well-known algorithm, by Chandra and Toueg, that solves Consensus among asynchronous distributed processes in the presence of a particular class of failure detectors (Diamond S or, equivalently, Omega), under the hyp ...

2007

Alignment of hydrogen-related defect levels at the Si-SiO2 interface

Alfredo Pasquarello, Audrius Alkauskas

We propose a method within density functional theory for aligning defect energy levels at interfaces without relying on experimental data. We apply our scheme to the alignment of charge transition levels of the interstitial hydrogen and the hydrogen bridge ...

2007

Regularity in metric spaces

Serguei Timochine

Using arguments developed by De Giorgi in the 1950's, it is possible to prove the regularity of the solutions to a vast class of variational problems in the Euclidean space. The main goal of the present thesis is to extend these results to the more abstrac ...

EPFL2006

Distributed Consensus, Revisited

Rachele Fuzzati, Massimo Merro

2006

Raptor Codes

Mohammad Amin Shokrollahi

LT-codes are a new class of codes introduced by Luby for the purpose of scalable and fault-tolerant distribution of data over computer networks. In this paper, we introduce Raptor codes, an extension of LT-codes with linear time encoding and decoding. We w ...

2006

Tunneling-percolation origin of nonuniversality: Theory and experiments

Peter Ryser, Claudio Grimaldi, Thomas Maeder, Sonia Vionnet Menot

A vast class of disordered conducting-insulating compounds close to the percolation threshold is characterized by nonuniversal values of transport critical exponent t, in disagreement with the standard theory of percolation which predicts t ...

2005

Formation and expansion of a double-diffusive staircase in Lake Nyos, Cameroon

Alfred Johny Wüest, Martin Schmid

During the dry season of the year 2002, convective cooling triggered the formation of a double-diffusive regime of the convective type below the chemocline at 52m depth in Lake Nyos. Since then, the vertical extent of the double-diffusive staircase has con ...

Taylor & Francis Group2005