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See detailProject Office - First synthetic report
Warnant, René ULg

Report (2007)

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See detailProject Office - Third synthetic report
Warnant, René ULg

Report (2008)

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See detailProject Office – Mid-term progress report
Warnant, René ULg

Report (2007)

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See detailPROJECT SCHEDULING WITH MODULAR PROJECT COMPLETION ON A BOTTLENECK RESOURCE
Coolen, Kris; Wenchao, Wei; Talla Nobibon, Fabrice ULg et al

Report (2011)

In this paper, we model a research-and-development project as consisting of several modules, with each module containing one or more activities. We examine how to schedule the activities of such a project ... [more ▼]

In this paper, we model a research-and-development project as consisting of several modules, with each module containing one or more activities. We examine how to schedule the activities of such a project in order to maximize the expected profit when the activities have a probability of failure and when an activity’s failure can cause its module and thereby the overall project to fail. A module succeeds when at least one of its constituent activities is successfully executed. All activities are scheduled on a scarce resource that is modeled as a single machine. We describe various policy classes, establish the relationship between the classes, develop exact algorithms to optimize over two different classes (one dynamic program and one branch-and-bound algorithm), and examine the computational performance of the algorithms on two randomly generated instance sets. [less ▲]

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See detailProjected inhibition of platelet aggregation with ticagrelor twice daily vs. clopidogrel once daily based on patient adherence data (the TWICE project)
Vrijens, Bernard ULg; Claeys, M.J.; LEGRAND, Victor ULg et al

in British Journal of Clinical Pharmacology (2014), 77(5), 746-755

Abstract Aim Twice daily dosing is often perceived as inferior to once daily dosing due to a higher likelihood of missing a dose. However, more important is the extent to which drug action is maintained ... [more ▼]

Abstract Aim Twice daily dosing is often perceived as inferior to once daily dosing due to a higher likelihood of missing a dose. However, more important is the extent to which drug action is maintained when doses are delayed or missed. We compared the estimated inhibition of platelet aggregation (eIPA) for ticagrelor twice daily and clopidogrel once daily, based on their pharmacokinetic/ pharmacodynamic relationships and patient dosing history data. Methods Drug dosing histories of 5014 patients prescribed cardiovascular medications (primarily antihypertensive medicines) were extracted from an electronically compiled dosing history database. eIPA levels were simulated for 677 twice daily and 677 once daily dosing histories over a 30 day period, based on published onset/offset models for ticagrelor and clopidogrel IPA characteristics. Results While many patients treated twice daily missed at least one dose in 30 days, only 25.7% missed two consecutive doses. By comparison, 46.8% of patients treated once daily missed at least one dose. Simulations based on patient adherence over time showed that the average mean eIPA for ticagrelor twice daily remained significantly higher than for clopidogrel once daily (81.1% vs. 55.0%, P < 0.001). Ticagrelor twice daily patients had an eIPA below 10% for 0.20% of the 30 day period compared with 2.05% for clopidogrel once daily (P = 0.0001). Conclusions The projected level of platelet inhibition remained higher for ticagrelor twice daily than clopidogrel once daily, mainly due to the higher eIPA level achieved with ticagrelor and the relatively low likelihood of missing two consecutive twice daily doses. This modelling and simulation study suggests a therapeutic benefit of ticagrelor over clopidogrel when taking into account the most common dosing omissions. © 2013 The British Pharmacological Society. [less ▲]

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See detailProjectiles and hafting technology
Rots, Veerle ULg

in Iovita, Radu; Sano, Katsuhiro (Eds.) Multidisciplinary Approaches to the Study of Stone Age Weaponry (in press)

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See detailProjectiles and the abuse of the use-wear method in a search for impact
Rots, Veerle ULg; Plisson, Hugues

in Journal of Archaeological Science (2014), 48

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See detailProjecting Generation Decisions Induced by a Stochastic Program on a Family of Supply Curve Functions
Defourny, Boris ULg; Wehenkel, Louis ULg

Scientific conference (2007, March)

We propose to post-process the results of a scenario based stochastic program by projecting its decisions on a parameterized space of policies. By doing so the risk of overfitting to the set of scenarios ... [more ▼]

We propose to post-process the results of a scenario based stochastic program by projecting its decisions on a parameterized space of policies. By doing so the risk of overfitting to the set of scenarios used in the stochastic program is reduced. A proper choice of the structure of the space of policies allows one to exploit them in the context of novel scenarios, be it for Monte-Carlo based value estimation or for use in real-life conditions. These ideas are presented in the context of planning the exploitation of electric energy resources or for evaluating the economic value of a portfolio of assets. [less ▲]

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See detailProjection-débat autour d'Anita G. d'Alexander Kluge
Hamers, Jérémy ULg; Cormann, Grégory ULg

Conference given outside the academic context (2013)

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See detailProjections à l’échéance 2100 des changements de température et de précipitations en Belgique réalisées à l’aide des modèles du GIEC
Dury, Marie ULg

Master's dissertation (2008)

En 2007, le Groupe d’experts du GIEC a publié son 4e rapport (AR4) sur les changements climatiques. Les résultats proposés dans l’AR4 ont été obtenus à l’aide d’un vaste échantillon de modèles de ... [more ▼]

En 2007, le Groupe d’experts du GIEC a publié son 4e rapport (AR4) sur les changements climatiques. Les résultats proposés dans l’AR4 ont été obtenus à l’aide d’un vaste échantillon de modèles de circulation générale (AOGCMs) nouvellement homologués par le groupe. Notre travail a profité des avancées réalisées dans le monde de la modélisation climatique pour tenter de procéder à un état des lieux, remise à jour améliorée, des changements climatiques qui pourraient être enregistrés en Belgique au cours du 21e siècle en matière de température et de précipitations. Etant donné le large éventail de modèles mis à notre disposition, nous avons pu nous permettre d’écrémer ce vaste catalogue, ce que d’autres travaux antérieurs n’avaient pu faire. Ainsi, la première partie de cette étude est-elle consacrée à l’évaluation des différents AOGCMs dans le but de ne conserver que les plus aptes à réaliser des projections climatiques cohérentes pour notre territoire. La seconde partie de notre travail porte sur l’analyse des projections réalisées pour la Belgique par les huit modèles de circulation générale sélectionnés dans la partie précédente. Pour resituer les changements climatiques que les AOGCMs annoncent pour notre pays dans un contexte régional plus large, nous décrivons préalablement l’évolution climatique que connaîtra l’Europe au 21e siècle. Pour la Belgique, nous nous attachons à montrer les évolutions dans les moyennes annuelles et saisonnières pour les températures moyenne, minimale et maximale ainsi que pour les précipitations. Ensuite, nous tentons d’identifier les changements dans les statistiques journalières des évènements « extrêmes », ce qui, il faut le souligner, n’avait encore jamais été réalisé pour notre territoire. Ainsi, les évolutions dans le nombre de jours de gel, de jours de canicule, de vagues de chaleur,… et les changements dans la distribution des intensités des précipitations journalières ont été étudiés. [less ▲]

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See detailProjections graphiques de quelques espaces de la vie sociale au Japon
Badir, Sémir ULg

in Lexia (2014), 17-18

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See detailProjective and Affine Spatial Operators for Regions
Billen, Roland ULg; Clementini, Eliseo

in Joo Er, Meng; D'Attelis, Carlos; Mastorakis, M. (Eds.) Proceedings of WSEAS International Conferences MCBC, MCBE, ICAMSL, ICAI (2002, December)

Among Geographic Information Systems functionality is the retrieval of spatial data by using various spatial operators. The proposal of this paper is about the definition of new spatial operators that are ... [more ▼]

Among Geographic Information Systems functionality is the retrieval of spatial data by using various spatial operators. The proposal of this paper is about the definition of new spatial operators that are based on projective and affine geometric invariants. Such a special category of geometric properties, despite being not widely used in previous work, reveals itself a very interesting realm for the exploration of new operators that are both powerful and easy to use from an end-user perspective. [less ▲]

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See detailA projective approach to handle 3D spatial data
Billen, Roland ULg

Poster (2003, September)

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See detailA projective approach to handle 3D spatial data
Billen, Roland ULg

in Proceedings of GIS Research UK 2004 (2004)

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See detailProjective primitives vs. Topological promitives: What’s the benefit ?
Billen, Roland ULg

Conference (2005, April)

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See detailProjective relations in a 3D environment
Billen, Roland ULg; Clementini, Eliseo

in Lecture Notes in Computer Science (2006), 4197

This paper presents a model for positional relations among bodies of arbitrary shape in three dimensions. It is based on an existing model for projective relations among regions in two dimensions. The ... [more ▼]

This paper presents a model for positional relations among bodies of arbitrary shape in three dimensions. It is based on an existing model for projective relations among regions in two dimensions. The motivation is to provide a formal qualitative spatial relations model for emerging 3D applications. Two sets of relations are defined: ternary projective relations based on the concept of collinearity between a primary object and two reference objects and quaternary projective relations based on the concept of coplanarity between a primary object and three reference objects. Four sets of JEPD relations are defined for points and bodies in R-3. [less ▲]

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See detailProjectively equivariant quantization over R^{p|q}
Radoux, Fabian ULg

Conference (2011, September 13)

Detailed reference viewed: 10 (2 ULg)