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Genuinely Distributed Byzantine Machine Learning

Rachid Guerraoui, El Mahdi El Mhamdi, Le Nguyen Hoang, Sébastien Louis Alexandre Rouault, Arsany Hany Abdelmessih Guirguis

Machine Learning (ML) solutions are nowadays distributed, according to the so-called server/worker architecture. One server holds the model parameters while several workers train the model. Clearly, such architecture is prone to various types of component ...

Association for Computing Machinery2020

Scalable Byzantine Reliable Broadcast

Rachid Guerraoui, Dragos-Adrian Seredinschi, Matej Pavlovic, Matteo Monti

Byzantine reliable broadcast is a powerful primitive that allows a set of processes to agree on a message from a designated sender, even if some processes (including the sender) are Byzantine. Existing broadcast protocols for this setting scale poorly, as ...

Schloss Dagstuhl--Leibniz-Zentrum fer Informatik2019

The proliferation of aura

Sarah Irene Brutton Kenderdine

This chapter engages with the aura of real, digital, and material copies of objects in the context of museum exhibitions to explore the notion of the “proliferation of aura” as digital artworks reverberate with the original objects they reference. It descr ...

Routledge2018

The Hidden Vulnerability of Distributed Learning in Byzantium

Rachid Guerraoui, El Mahdi El Mhamdi, Sébastien Louis Alexandre Rouault

While machine learning is going through an era of celebrated success, concerns have been raised about the vulnerability of its backbone: stochastic gradient descent (SGD). Recent approaches have been proposed to ensure the robustness of distributed SGD aga ...

2018

Byzantine Fireflies

Rachid Guerraoui, Alexandre David Olivier Maurer

This paper addresses the problem of synchronous beeping, as addressed by swarms of fireflies. We present Byzantine-resilient algorithms ensuring that the correct processes eventually beep synchronously despite a subset of nodes beeping asynchronously. We a ...

Springer Berlin Heidelberg2015

Byzantine Fireflies

Rachid Guerraoui, Alexandre David Olivier Maurer

2015

Beyond One Third Byzantine Failures

Rachid Guerraoui, Anne-Marie Kermarrec, Cheng Wang

The Byzantine agreement problem requires a set of

n

processes to agree on a value sent by a transmitter, despite a subset of

b

processes behaving in an arbitrary, i.e. Byzantine, manner and sending corrupted messages to all processes in the system. It ...

2015

Byzantine Agreement with Homonyms

Rachid Guerraoui, Anne-Marie Kermarrec, Eric Ruppert

So far, the distributed computing community has either assumed that all the processes of a distributed system have distinct identifiers or, more rarely, that the processes are anonymous and have no identifiers. These are two extremes of the same general mo ...

Springer2013

Beyond One Third Byzantine Failures

Rachid Guerraoui, Anne-Marie Kermarrec, Cheng Wang

The Byzantine agreement problem requires a set of

n

processes to agree on a value sent by a transmitter, despite a subset of

b

processes behaving in an arbitrary, i.e. Byzantine, manner and sending corrupted messages to all processes in the system. It ...

2015

Soie byzantine

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Chattez avec Graph Search

Genuinely Distributed Byzantine Machine Learning

Private and Secure Distributed Learning

Scalable Byzantine Reliable Broadcast

Scaling Byzantine Fault Tolerance

The proliferation of aura

The Hidden Vulnerability of Distributed Learning in Byzantium

Byzantine Fireflies

Byzantine Fireflies

Beyond One Third Byzantine Failures

Byzantine Agreement with Homonyms

Genuinely Distributed Byzantine Machine Learning

Scaling Byzantine Fault Tolerance

Byzantine Fireflies

Scalable Byzantine Reliable Broadcast

The Hidden Vulnerability of Distributed Learning in Byzantium

Beyond One Third Byzantine Failures

Byzantine Fireflies

Byzantine Agreement with Homonyms

Private and Secure Distributed Learning

The proliferation of aura