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Article dans une revue

Opportunistic Data Services in Least Developed Countries: Benefits, Challenges and Feasibility Issues

Nicolas Anciaux, Luc Bouganim, Thierry Delot, Sergio Ilarri, Leïla Kloul, Nathalie Mitton, Philippe Pucheral

facilitator in establishing primary education, reducing mortality or supporting commercial initiatives in Least Developed Countries. The main barrier to the development of IT services in these regions is not only the lack of communication facilities, but also the lack of consistent information...

SIGMOD record, 2014, 43 (1), pp.52-63. ⟨10.1145/2627692.2627704⟩. ⟨hal-00971805⟩

Article dans une revue

A simulation-based decision support system to prevent and predict strain situations in emergency department systems

Farid Kadri, Sondès Chaabane, Christian Tahon

The management of patient flow, especially the flow resulting from health crises in emergency departments (ED), is one of the most important problems managed by ED managers. To handle this influx of patients, emergency departments require significant human and material resources, but these are...

Simulation Modelling Practice and Theory, 2014, 42, pp.32-52. ⟨10.1016/j.simpat.2013.12.004⟩. ⟨hal-03644624⟩

Communication dans un congrès

Redefining the role of FPGAs in the next generation avionic systems

Venkatasubramanian Viswanathan, Rabie Ben Atitallah, Jean-Luc Dekeyser, Benjamin Nakache, Maurice Nakache

Embedded reconfigurable computing is becoming a new paradigm for system designers in avionic applications. In fact, FPGAs can be used for more than just computational purpose in order to improve the system performance. The introduction of FPGA Mezzanine Card (FMC) I/O standard has given a new...

The 2014 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays, FPGA '14, Feb 2014, Monterey, United States. ⟨10.1145/2554688.2554744⟩. ⟨hal-01104615⟩

Communication dans un congrès

Mathematical Programming Models for Scheduling in a Heterogeneous CPU/FPGA Architecture with Heterogeneous Communication Delay

Abdessamad Ait El Cadi, Rabie Ben Atitallah, Said Hanafi, Abdelhakim Artiba

<p>Embedded and distributed systems are becoming more and more available all over the world, and opening new perspectives for a large range of applications in aeronautic, avionic, robotic and intelligent transportation systems. However, this very large potential of computing power remains...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946255⟩

Communication dans un congrès

Heuristiques hybrides pour le problème de la distribution équitable

Christophe Wilbaut, Said Hanafi, Boukthir Haddar, Mahdi Khemakhem, Arnaud Fréville

Dans cet article nous nous intéressons à la résolution du problème de la distribution équitable qui est une extension du problème du sac-à-dos (SAD) dans laquelle un ensemble d'objets est soumis à une contrainte de ressource, comme dans le SAD. Cependant, les objets sont regroupés en...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946429⟩

Communication dans un congrès

Optimizing the periodic maintenance problem using General Variable neighbourhood search

Raca Todosijević, Rachid Benmansour, Said Hanafi, Nenad Mladenovic, Michel Vasquez

In this paper we study the periodic maitenance problem (PMP). The problem is to determine, for a set of m machines and a period of T units of time, a maintenance schedule which will be indefinitely repeating itself. At each period, at most one machine can be serviced. However for any cycle, all the...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946394⟩

Communication dans un congrès

Application of a Co-evolutionary Genetic Algorithm to solve the Periodic Railway Timetabling Problem

Luis Diego Arenas Pimentel, Rémy Chevrier, Said Hanafi, Joaquin Rodriguez

In train operations, a timetable is used to establish the departure and arrival times for the trains at the stations or other relevant locations in the rail network. The timetable must respond to the commercial requirements of the customers, while respecting also some security and capacity...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946504⟩

Communication dans un congrès

On the complexity of robotic flow shop with transportation constraints

Nacira Chikhi, Moncef Abbas, Abdelghani Bekrar, Rachid Benmansour, Said Hanafi

Most of machine scheduling models in the literature assume that either transportation capacity of transporters for delivering jobs is unlimited or transportation times from one location to another are negligible. In this paper, we study a two stages robotic flow shop problem which is a scheduling...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946372⟩

Communication dans un congrès

Tutoriel : Variable neighbourhood and Formulation space searches: some recent advances

Nenad Mladenovic

<p>Variable neighbourhood search (VNS) and Formulation space search (FSS) are two general search strategies for solving optimization problems that follow the principle of change during the search for the better solution. In VNS, the neighbourhood structures are systematically changed, while...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946266⟩

Communication dans un congrès

A hybrid approach combining column generation and variable neighborhood search for the location and routing problem

Rita Macedo, Said Hanafi, Bassem Jarboui, Nenad Mladenovic, Bruna Ramos, Cláudio Alves, J.M. Valério de Carvalho

<p>The location and routing problem is an integrated problem, combining two problems of the supply chain, the location problem and the vehicle routing problem. The combination of these two important optimization problems to distribution networks can translate into considerable savings, given...

ROADEF - 15ème congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision, Société française de recherche opérationnelle et d'aide à la décision, Feb 2014, Bordeaux, France. ⟨hal-00946393⟩