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See detailDecision tree pruning using an additive information quality measure
Wehenkel, Louis ULg

in Bouchon-Meunier, B; Valverde, L; Yager, R (Eds.) Uncertainty in Intelligent Systems (1993)

An additive quality measure based on information theory is introduced for the inductive inference of decision trees. It takes into account both the information content and the complexity of a tree ... [more ▼]

An additive quality measure based on information theory is introduced for the inductive inference of decision trees. It takes into account both the information content and the complexity of a tree, combined so as to evaluate the tree on the basis of its learning sample. The additivity of the quality measure with respect to the decomposition of a tree into subtrees, allows to formulate an efficient recursive backward pruning algorithm to maximize the quality. Simulation results are provided on the ground of a real life problem related to electric power system operation and a synthetic digit recognition problem. [less ▲]

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See detailDecision Trees and Random Subwindows for Object Recognition
Marée, Raphaël ULg; Geurts, Pierre ULg; Piater, Justus ULg et al

in ICML workshop on Machine Learning Techniques for Processing Multimedia Content (MLMM2005) (2005)

In this paper, we compare five tree-based machine learning methods within a recent generic image classification framework based on random extraction and classification of subwindows. We evaluate them on ... [more ▼]

In this paper, we compare five tree-based machine learning methods within a recent generic image classification framework based on random extraction and classification of subwindows. We evaluate them on three publicly available object recognition datasets (COIL-100, ETH-80, and ZuBuD). Our comparison shows that this general and conceptually simple framework yields good results when combined with ensemble of decision trees, especially when using Tree Boosting or Extra-Trees. The latter is also particularly attractive in terms of computational efficiency. [less ▲]

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See detailDecision Trees and Transient Stability of Electric Power Systems
Wehenkel, Louis ULg; Pavella, Mania ULg

in Automatica (1991), 27(1), 115-134

An inductive inference method for the automatic building of decision trees is investigated. Among its various tasks, the splitting and the stop splitting criteria successively applied to the nodes of a ... [more ▼]

An inductive inference method for the automatic building of decision trees is investigated. Among its various tasks, the splitting and the stop splitting criteria successively applied to the nodes of a grown tree, are found to play a crucial role on its overall shape and performances. The application of this general method to transient stability is systematically explored. Parameters related to the stop splitting criterion, to the learning set and to the tree classes are thus considered, and their influence on the tree features is scrutinized. Evaluation criteria appropriate to assess accuracy are also compared. Various tradeoffs are further examined, such as complexity vs number of classes, or misclassification rate vs type of misclassification errors. Possible uses of the trees are also envisaged. Computational issues relating to the building and the use of trees are finally discussed. [less ▲]

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See detailDecision trees applied to on-line transient stability assessment of power systems
Wehenkel, Louis ULg; Van Cutsem, Thierry ULg; Pavella, Mania ULg

in Proc. Int. Symp. on Circuits and Systems (1988)

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See detailDecision trees for detecting emergency voltage conditions
Van Cutsem, Thierry ULg; Wehenkel, Louis ULg; Pavella, Mania ULg et al

in Proc. 2nd Intern. workshop on Bulk power system voltage phenomena : voltage stability and security (1991, August)

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See detailA decision-maker point of view on uncertainties in spatial decisions
Cornélis, Bernard ULg; Brunet, Sébastien ULg

in Goodchild, Michael; Fisher, Peter; Shi, Wenzhong (Eds.) Spatial Data Quality (2002)

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See detailA decision-support system for evaluating sales prospects and launch strategies for new products
Choffray, Jean-Marie ULg; Lilien, Gary L.

in Industrial Marketing Management (1986), 15

This paper reports the results of a study of industrial product diffusion, focusing on those factors associated with successful market penetration. These results were incorporated in a decision support ... [more ▼]

This paper reports the results of a study of industrial product diffusion, focusing on those factors associated with successful market penetration. These results were incorporated in a decision support system that can be used to help plan entrey strategy for a new industrial product. [less ▲]

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See detailLes décisions sociales
Caprasse, Olivier ULg

in Revue de l'Arbitrage (2013), (3), 673-704

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See detailDecitabine improves progression-free survival in older high-risk MDS patients with multiple autosomal monosomies: results of a subgroup analysis of the randomized phase III study 06011 of the EORTC Leukemia Cooperative Group and German MDS Study Group
Lübbert, Michael; Suciu, Stefan; Hagemeijer, Anne et al

in Annals of Hematology (2016), 95

In a study of elderly AML patients treated with the hypomethylating agent decitabine (DAC), we noted a surprisingly favorable outcome in the (usually very unfavorable) subgroup with two or more autosomal ... [more ▼]

In a study of elderly AML patients treated with the hypomethylating agent decitabine (DAC), we noted a surprisingly favorable outcome in the (usually very unfavorable) subgroup with two or more autosomal monosomies (MK2+) within a complex karyotype (Lübbert et al., Haematologica 97:393-401, 2012). We now analyzed 206 myelodysplastic syndrome (MDS) patients (88 % of 233 patients randomized in the EORTC/GMDSSG phase III trial 06011, 61 of them with RAEBt, i.e. AML by WHO) with cytogenetics informative for MK status.. Endpoints are the following: complete/partial (CR/PR) and overall response rate (ORR) and progression-free (PFS) and overall survival (OS). Cytogenetic subgroups are the following: 63 cytogenetically normal (CN) patients, 143 with cytogenetic abnormalities, 73 of them MKnegative (MK−), and 70 MK-positive (MK+). These MK+ patients could be divided into 17 with a single autosomal monosomy (MK1) and 53 with at least two monosomies (MK2+). ORR with DAC in CN patients: 36.1 %, in MK−patients: 16.7 %, in MK+ patients: 43.6 % (MK1: 44.4 %, MK2+ 43.3 %). PFS was prolonged by DAC compared to best supportive care (BSC) in the CN (hazard ratio (HR) 0.55, 99 % confidence interval (CI), 0.26; 1.15, p=0.03) and MK2+ (HR 0.50; 99%CI, 0.23; 1.06, p=0.016) but not in the MK−, MK+, and MK1 subgroups. OS was not improved by DAC in any subgroup. In conclusion, we demonstrate for the first time in a randomized phase III trial that high-risk MDS patients with complex karyotypes harboring two or more autosomal monosomies attain encouraging responses and have improved PFS with DAC treatment compared to BSC. [less ▲]

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See detailDecitabine versus best supportive care in older patients with refractory anemia with excess blasts in transformation (RAEBt) - results of a subgroup analysis of the randomized phase III study 06011 of the EORTC Leukemia Cooperative Group and German MDS Study Group (GMDSSG)
BECKER, Heiko; SUCIU, Stefan; RUTER, Björn Hans et al

in Annals of Hematology (2015), 94

In the European Organisation for Research and Treatment of Cancer (EORTC)/GMDSSG phase III trial06011, we compared decitabine (15 mg/m² every 8 h for 3 days) with best supportive care (BSC) in patients ... [more ▼]

In the European Organisation for Research and Treatment of Cancer (EORTC)/GMDSSG phase III trial06011, we compared decitabine (15 mg/m² every 8 h for 3 days) with best supportive care (BSC) in patients >/= 60 years with myelodysplastic syndromes (MDS) by French-Amercian-British (FAB) criteria. Here, we reinvestigate trial 06011 for the activity and efficacy specifically in patients with refractory anemia with excess blasts in transformation (RAEBt). Response rates in the decitabine arm (N=40) were as follow: complete or partial remission, 15 %; hematologic improvement, 15 %; resistant disease, 30 %. RAEBt patients in the decitabine arm had longer progression-free survival (PFS; hazard ratio (HR) 0.30, 95 % confidence interval (CI) 0.18-0.51; median, 6.2 vs 2.8 months) and overall survival (OS; HR 0.68, 95 % CI 0.42-1.11; median, 8.0 vs 6.0 months) than in the BSC arm (N=35). Censoring at allogeneic hematopoietic stem cell transplantation, the OS difference between the treatment groups increased, particularly among patients. [less ▲]

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See detailUna declaración de intenciones: La UE y los países vecinos en la política exterior y de seguridad
Natorski, Michal ULg

in Barbé, Esther (Ed.) La Unión Europea más allá de sus fronteras ¿Hacia la transformación del Mediterráneo y Europa oriental? (2010)

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See detailLa déclaration du risque dans les assurances de dommages
Paris, Catherine ULg

in Paris, Catherine (Ed.) Actualités en droit des assurances - Commission Université Palais, vol. 154 (2014)

Quand une personne, physique ou morale, souhaite conclure un contrat d'assurance auprès d'une entreprise d'assurances, elle est tenue de lui déclarer correctement le risque. L'étendue de cette obligation ... [more ▼]

Quand une personne, physique ou morale, souhaite conclure un contrat d'assurance auprès d'une entreprise d'assurances, elle est tenue de lui déclarer correctement le risque. L'étendue de cette obligation précontractuelle d'information et le régime des sanctions qui l'accompagne est analysée dans la présence contribution à travers un examen complet de la jurisprudence propre aux assurances de dommages et à la lumière de la loi du 4 avril 2014 relative aux assurances. [less ▲]

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See detailLes déclarations non vérifiées de témoins au regard du procès équitable
Michiels, Olivier ULg; Falque, Géraldine ULg

in Journal des Tribunaux (2016), (6656), 485-490

Dans l’arrêt Schatschaschwili contre Allemagne, la Cour européenne des droits de l’homme s’est particulièrement attachée à préciser les principes qui s’appliquent aux déclarations d’un témoin absent au ... [more ▼]

Dans l’arrêt Schatschaschwili contre Allemagne, la Cour européenne des droits de l’homme s’est particulièrement attachée à préciser les principes qui s’appliquent aux déclarations d’un témoin absent au procès, susceptibles de fonder la culpabilité d’un accusé. Les éclaircissements que l’arrêt de la Grande Chambre ambitionne d’apporter à ce sujet retiendront notre attention dès lors que l’équité du procès pourrait être compromise par la déposition d’un témoin que la défense n’a pas pu, directement ou indirectement, faire interroger. Après avoir rappelé le contexte factuel et procédural dans lequel s’inscrit la cause, nous tenterons de dégager les lignes de force de l’arrêt commenté. Enfin, nous nous efforcerons de mettre ces enseignements en perspective avec la jurisprudence de la cour de Cassation relative à l’article 6, § 3, d) de la Convention qui reconnaît notamment le droit à tout accusé d’interroger ou faire interroger un témoin à charge, pour terminer par une brève conclusion. [less ▲]

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See detailDeclared chronic morbidity after 45 years : Results from a population survey in Belgium
Gosset, Christiane ULg; Cartier, P; De Prins, L et al

Conference (1997)

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See detailDéclin cognitif avec l'âge: Réalité, exagération, ou fiction?
Adam, Stéphane ULg

Scientific conference (2013, April 03)

Detailed reference viewed: 49 (6 ULg)
See detailLes déclinaisons de l'identité en Wallonie. Couplage et divorces entre électorats, appartenances et prises de position en matière communautaire et institutionnelle
Jacquemain, Marc ULg; Vandekeere, Michel; Doutrelepont, René

in Frognier, André-Paul; Aish-Van Vaerenberghe, Anne-Marie (Eds.) Elections, la fêlure : enquête sur le comportant électoral des Wallons et des Francopohnes (1994)

The paper synthesizes how different kinds of national/regional affiliations among frenchspeaking belgian public, measured by surveys can affect their electora behaviour and their policy preferences

Detailed reference viewed: 20 (2 ULg)