Resultats globals: 3 registres trobats en 0.02 segons.
Articles, 3 registres trobats
Articles 3 registres trobats  
1.
22 p, 372.7 KB Estimation of cut-off points under complex-sampling design data / Iparragirre, Amaia (Universidad del País Vasco) ; Barrio Beraza, Irantzu (Universidad del País Vasco. Basque Center for Applied Mathematics) ; Aramendi, Jorge (Eustat - Euskal Estatistika Erakundea - Instituto Vasco de Estadística) ; Arostegui, Inmaculada (Universidad del País Vasco. Basque Center for Applied Mathematics)
In the context of logistic regression models, a cut-off point is usually selected to dichotomize the estimated predicted probabilities based on the model. The techniques proposed to estimate optimal cut-off points in the literature, are commonly developed to be applied in simple random samples and their applicability to complex sampling designs could be limited. [...]
2022 - 10.2436/20.8080.02.121
SORT : statistics and operations research transactions, Vol. 46 Núm. 1 (2022) , p. 137-158 (Articles)  
2.
18 p, 391.2 KB On the optimism correction of the area under the receiver operating characteristic curve in logistic prediction models / Iparragirre, Amaia (Universidad del País Vasco. Departamento de Matemáticas) ; Barrio Beraza, Irantzu (Universidad del País Vasco. Departamento de Matemáticas) ; Rodríguez-Álvarez, María Xosé (BCAM-Basque Center for Applied Mathematics (Bilbao, País Basc))
When the same data are used to fit a model and estimate its predictive performance, this estimate may be optimistic, and its correction is required. The aim of this work is to compare the behaviour of different methods proposed in the literature when correcting for the optimism of the estimated area under the receiver operating characteristic curve in logistic regression models. [...]
2019 - 10.2436/20.8080.02.82
SORT : statistics and operations research transactions, Vol. 43 Núm. 1 (January-June 2019) , p. 145-162 (Articles)  
3.
20 p, 289.0 KB Comparison of two discrimination indexes in the categorisation of continuous predictors in time-to-event studies / Barrio Beraza, Irantzu (Universidad del País Vasco. Departamento de Matemáticas) ; Rodríguez-Álvarez, María Xosé (Universidade de Vigo. Departamento de Estatística e Investigación Operativa) ; Meira-Machado, Luis (Universidade do Minho (Braga, Portugal). Centre of Mathematics and Department of Mathematics and Applications) ; Esteban, Cristóbal (Hospital de Galdakao (Usansolo, Biscaia)) ; Arostegui, Inmaculada (Universidad del País Vasco. Departamento de Matemáticas)
The Cox proportional hazards model is the most widely used survival prediction model for analysing time-to-event data. To measure the discrimination ability of a survival model the concordance probability index is widely used. [...]
2017 - 10.2436/20.8080.02.51
SORT : statistics and operations research transactions, Vol. 41 Núm. 1 (January-June 2017) , p. 73-92 (Articles)  

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