Publication

Concurrency and dynamic protocol update for group communication middleware

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Exogenous Coordination of Concurrent Software Components with JavaBIP

Simon Bliudze, Anastasia Mavridou, Radoslaw Szymanek, Alina Zolotukhina

A strong separation of concerns is necessary in order to make the design of domain-specific functional components independent from cross-cutting concerns, such as concurrent access to the shared resources of the execution platform. Native coordination mech ...

Wiley-Blackwell2017

The Weakest Failure Detector for Eventual Consistency

Rachid Guerraoui, Pierre Sens

In its classical form, a consistent replicated service requires all replicas to witness the same evolution of the service state. Assuming a message-passing environment with a majority of correct processes, the necessary and sufficient information about fai ...

ACM Press2015

Consistency Models in Distributed Systems with Physical Clocks

Jiaqing Du

Most existing distributed systems use logical clocks to order events in the implementation of various consistency models. Although logical clocks are straightforward to implement and maintain, they may affect the scalability, availability, and latency of t ...

EPFL2014

State Machine Replication

Nuno Filipe de Sousa Santos

Since their invention more than half a century ago, computers have gone from being just an handful of expensive machines each filling an entire room, to being an integral part of almost every aspect of modern life. Nowadays computers are everywhere: in our ...

EPFL2012

Speculative Linearizability

Rachid Guerraoui, Viktor Kuncak, Giuliano Losa

Linearizability is a key design methodology for reasoning about implementations of concurrent abstract data types in both shared memory and message passing systems. It provides the illusion that operations execute sequentially and fault-free, despite the a ...

Assoc Computing Machinery2012

S-Paxos: Offloading the Leader for High Throughput State Machine Replication

André Schiper, Zarko Milosevic, Nuno Filipe de Sousa Santos, Martin Biely

Implementations of state machine replication are prevalently using variants of Paxos or other leader-based protocols. Typically these protocols are also leader-centric, in the sense that the leader performs more work than the non-leader replicas. Such prot ...

2012

Speculative Linearizability

Rachid Guerraoui, Viktor Kuncak, Giuliano Losa

2011

Democratizing Transactional Programming

Rachid Guerraoui, Vincent Gramoli

The Transaction abstraction is arguably one of the most appealing middleware paradigms. It lies typically between the programmer of a concurrent or distributed application on the one hand, and the operating system with the underlying network on the other h ...

Springer-Verlag Berlin2011

Agile Views in a Dynamic Data Management System

Christoph Koch, Yanif Ahmad

This paper calls for a new breed of lightweight systems - dynamic data management systems (DDMS). In a nutshell, a DDMS manages large dynamic data structures with agile, frequently fresh views, and provides a facility for monitoring these views and trigger ...

2011

An Extension of ETF Arbitrage to Sector Trading Using ANN

Utkarsh Upadhyay, Ramnik Arora

We design and deploy a trading strategy that mirrors the Exchange Traded Fund (ETF) arbitrage technique for sector trading. Artiﬁcial Neural Networks (ANNs) are used to capture pricing relationships within a sector using intra-day trade data. The fair pric ...

2009