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See detailModel-free Monte Carlo-like policy evaluation
Fonteneau, Raphaël ULg; Murphy, Susan A.; Wehenkel, Louis ULg et al

in 29th Benelux Meeting on Systems and Control (2010)

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See detailModel-free Monte Carlo-like policy evaluation
Fonteneau, Raphaël ULg; Murphy, Susan; Wehenkel, Louis ULg et al

in Proceedings of the Thirteenth International Conference on Artificial Intelligence and Statistics (AISTATS 2010) (2010, May)

We propose an algorithm for estimating the finite-horizon expected return of a closed loop control policy from an a priori given (off-policy) sample of one-step transitions. It averages cumulated rewards ... [more ▼]

We propose an algorithm for estimating the finite-horizon expected return of a closed loop control policy from an a priori given (off-policy) sample of one-step transitions. It averages cumulated rewards along a set of “broken trajectories” made of one-step transitions selected from the sample on the basis of the control policy. Under some Lipschitz continuity assumptions on the system dynamics, reward function and control policy, we provide bounds on the bias and variance of the estimator that depend only on the Lipschitz constants, on the number of broken trajectories used in the estimator, and on the sparsity of the sample of one-step transitions. [less ▲]

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Peer Reviewed
See detailModel-free Monte Carlo–like policy evaluation
Fonteneau, Raphaël ULg; Murphy, Susan; Wehenkel, Louis ULg et al

in Proceedings of Conférence Francophone sur l'Apprentissage Automatique (CAp) 2010 (2010, May)

We propose an algorithm for estimating the finite-horizon expected return of a closed loop control policy from an a priori given (off-policy) sample of one-step transitions. It averages cumulated rewards ... [more ▼]

We propose an algorithm for estimating the finite-horizon expected return of a closed loop control policy from an a priori given (off-policy) sample of one-step transitions. It averages cumulated rewards along a set of “broken trajectories” made of one-step transitions selected from the sample on the basis of the control policy. Under some Lipschitz continuity assumptions on the system dynamics, reward function and control policy, we provide bounds on the bias and variance of the estimator that depend only on the Lipschitz constants, on the number of broken trajectories used in the estimator, and on the sparsity of the sample of one-step transitions. [less ▲]

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Peer Reviewed
See detailModelaçao numérica da encurvadura lateral de vigas I em aço inoxidável à temperature ambiente e em situaçao de incêndio - comparaçao com o Eurocòdigo
Lopes, N.; Vila Real, P.; Silva, L. et al

in Proceedings of the V Congresso de Construçao Metálica e Mista (2005)

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See detailModelaçao Numérica da Encurvadura Lateral de Vigas I Metalica Sujeitas à Acçao do Fogo
Vila Real, Paulo; Piloto, Paulo; Franssen, Jean-Marc ULg

in Proc. II National Conference on Steel and Composite Construction (1999)

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See detailModelaçao numérica do comportamento de uma estrutura metalica sujeita à acçao do fogo - Analise de varios cenarios de incëndio
Vila Real, P. M. M.; Piloto, P. A. G.; Franssen, Jean-Marc ULg

in Revista Portuguesa de Engenharia de Estruturas (RPEE) (2000), 47

In this work it has been analysed several possible fire scenarios in a steel structure of a commercial building, in order to find which one corresponds to the lowest fire resistance of the structure. It ... [more ▼]

In this work it has been analysed several possible fire scenarios in a steel structure of a commercial building, in order to find which one corresponds to the lowest fire resistance of the structure. It has been used a geometrically and materially non-linear finite element program specially established for the analysis of structures submitted to the fire. As the analysed structure doesn't reach the fire resistance suggested by the Portuguese standards, some solutions are proposed to increase its fire resistance. [less ▲]

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See detailLe modèle "Barbus" (poisson cyprinidé). Un maillon indispensable dans la recherche sur les poissons d'eau douce.
Poncin, Pascal ULg; Berrebi, Patrick; Philippart, Jean_Claude et al

in Cahiers d'Ethologie Appliquée (1993), 13(2), 129-130

Detailed reference viewed: 50 (3 ULg)
See detailModèle 3-D de dispersion atmosphérique de radioéléments autour du site de Tihange
Bourouag, Mohamed ULg; Dzisiak, J. P.; Everbecq, Etienne ULg

Report (1993)

Le rapport reprend la description du modèle de dispersion et de déposition des radioéléments rejetés aux cheminées de Tihange réalisé par l'ULG, dans le but d'aboutir in fine à un logiciel permettant d ... [more ▼]

Le rapport reprend la description du modèle de dispersion et de déposition des radioéléments rejetés aux cheminées de Tihange réalisé par l'ULG, dans le but d'aboutir in fine à un logiciel permettant d'évaluer en temps réel les conséquences radiologiques des rejets de routine ou accidentels de la centrale. [less ▲]

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See detailLe modèle belge de concertation budgétaire et les pouvoirs locaux
Husson, Jean-François ULg

in Reflets et Perspectives de la Vie Economique (2008), XLVII(4), 33-48

The Belgian model of budget cooperation has been originally devised to maintain Belgian economic and monetary union through a close follow-up of Regions and Communities deficits and debts. Enlarged to ... [more ▼]

The Belgian model of budget cooperation has been originally devised to maintain Belgian economic and monetary union through a close follow-up of Regions and Communities deficits and debts. Enlarged to take into account European budgetary constraints, this model has devoted a growing attention to the local sector, as detailed in this paper. Up to now, budget and debt assignments for local authorities have been agreed by the supervisory authorities – the Regions – despite the lack of available data on a regional basis. Developments could come from greater involvement and responsibility from local authorities themselves. [less ▲]

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See detailLe modèle belge de concertation budgétaire
Husson, Jean-François ULg

Conference (2008, June 25)

Cette présentation aborde l'historique de la coordination budgétaire en Belgique depuis le début des années 1990. Elle s'attarde plus particulièrement sur les institutions de coordination (Comité de ... [more ▼]

Cette présentation aborde l'historique de la coordination budgétaire en Belgique depuis le début des années 1990. Elle s'attarde plus particulièrement sur les institutions de coordination (Comité de consertation, Conseil supérieur des Finances,...) et les divers instruments de régulation utilisés. [less ▲]

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See detailLe modèle belge des Services d'intérêt économique général
Durviaux, Ann-Lawrence ULg

in Les services d'intérêt économique général et le marché intérieur : modèles nationaux et cadre juridique européen (2011, October 14)

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See detailModèle coût de Production - Report R&D1
Rigo, Philippe ULg

Report (2002)

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See detailModèle coût de Production - Report R&D2
Rigo, Philippe ULg

Report (2002)

Detailed reference viewed: 13 (0 ULg)
See detailModèle coût de Production - Report R&D3
Rigo, Philippe ULg

Report (2003)

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See detailModèle coût de Production - Report R&D4
Rigo, Philippe ULg

Report (2003)

Detailed reference viewed: 11 (0 ULg)
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See detailModèle d'équilibre des actifs financiers et autres facteurs de risque: le cas belge
Corhay, Albert ULg; El Khoury, Ghada ULg

in Corhay, Albert; Hübner, Georges; Muller, Aline (Eds.) Finance et valeur(s): Liber amicorum et discipulorum (2009)

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See detailUn modèle de compétences pour les formations en organisations
Faulx, Daniel ULg; Danse, Cédric ULg; Peters, Stéphanie ULg

in e-Psychologie du Travail et des Organisations (2011), (3),

In this day and age, individuals who offer organizational training are at the heart of important challenges faced by businesses and human resources management such as globalization, technological changes ... [more ▼]

In this day and age, individuals who offer organizational training are at the heart of important challenges faced by businesses and human resources management such as globalization, technological changes or age management. The aim of this paper is to extract and describe the domains of competencies of those professionals. Using a method based on the categorization of 1000 items, this research reveals four macro-domains of competencies (the relationship to the environment, the pedagogical engineering, the relationship management and the professional and self-development of the trainer) as well as 16 domains of competencies. [less ▲]

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See detailUn modèle de comportement thermo-plastique pour les sols-non-saturés: Application aux stockages de déchets nucléaires.
François, Bertrand ULg

in 26eme Rencontres Universitaires de Génie Civil (2008)

Un modèle constitutif thermo-hydro-mécanique dédié aux sols fins a été développé afin de prédire le comportement des géomatériaux intervenant dans la problématique du confinement des déchets nucléaires en ... [more ▼]

Un modèle constitutif thermo-hydro-mécanique dédié aux sols fins a été développé afin de prédire le comportement des géomatériaux intervenant dans la problématique du confinement des déchets nucléaires en couche géologique profonde. Ce modèle considère l’aspect couplé des processus thermique, hydrique et mécanique. Les équations constitutives sont présentées. L’implémentation de cette loi de comportement dans deux logiciels d’éléments finis a permis une étude rigoureuse de plusieurs scénarios rencontrés dans les sols entourant les futurs déchets radioactifs. Les enseignements de chacune de ces études ainsi que l’apport du modèle utilisé sont présentés. [less ▲]

Detailed reference viewed: 63 (10 ULg)
See detailLe modèle de consommation alimentaire en Wallonie
Lebailly, Philippe ULg

in Germain, Marc; Potelle, Jean-François (Eds.) La Wallonie à l’aube du XXIe siècle. Portrait d’un pays et de ses habitants (2005)

Detailed reference viewed: 27 (10 ULg)