Search Results - "Marazzi, Alfio"

Improving the Efficiency of Robust Estimators for the Generalized Linear Model by Marazzi, Alfio

“…The distance constrained maximum likelihood procedure (DCML) optimally combines a robust estimator with the maximum likelihood estimator with the purpose of…”
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Robust Estimation of the Generalized Loggamma Model: The R Package robustloggamma by Agostinelli, Claudio, Marazzi, Alfio, Yohai, Víctor J., Randriamiharisoa, Alex

“…robustloggamma is an R package for robust estimation and inference in the generalized loggamma model. We briefly introduce the model, the estimation procedures…”
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Increase of sudden cardiac deaths in Switzerland during the 2002 FIFA World Cup by Katz, Eugène, Metzger, Jacques-Thierry, Marazzi, Alfio, Kappenberger, Lukas

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Impact of job insecurity on sexual desire: an exploratory analysis by Domenighetti, Gianfranco, Tomada, Angelo, Marazzi, Alfio, Abazi, Ornela, Quaglia, Jacqueline

“…To explore, for the first time, the impact of job insecurity on sexual desire. Cross-sectional analysis of a nationally representative sample of 7247…”
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Robust parametric indirect estimates of the expected cost of a hospital stay with covariates and censored data by Locatelli, Isabella, Marazzi, Alfio

“…We consider the problem of estimating the mean hospital cost of stays of a class of patients (e.g., a diagnosis‐related group) as a function of patient…”
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A meta-analysis of acupuncture for chronic pain by Patel, M, Gutzwiller, F, Paccaud, F, Marazzi, A

“…Results of 14 randomized controlled trials of acupuncture for chronic pain were pooled in a meta-analysis and analysed in three subgroups according to site of…”
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Using past experience to optimize audit sampling design by Marazzi, Alfio, Tillé, Yves

“…Optimal sampling designs for audit, minimizing the mean squared error of the estimated amount of the misstatement, are proposed. They are derived from a…”
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Validation of the Potentially Avoidable Hospital Readmission Rate as a Routine Indicator of the Quality of Hospital Care by Halfon, Patricia, Eggli, Yves, Pêtre-Rohrbach, Isaline, Meylan, Danielle, Marazzi, Alfio, Burnand, Bernard

“…Background: The hospital readmission rate has been proposed as an important outcome indicator computable from routine statistics. However, most commonly used…”
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A robust conditional maximum likelihood estimator for generalized linear models with a dispersion parameter by Marazzi, Alfio, Valdora, Marina, Yohai, Victor, Amiguet, Michael

“…Highly robust and efficient estimators for generalized linear models with a dispersion parameter are proposed. The estimators are based on three steps. In the…”
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Robust estimators of accelerated failure time regression with generalized log-gamma errors by Agostinelli, Claudio, Locatelli, Isabella, Marazzi, Alfio, Yohai, Víctor J.

“…The generalized log-gamma (GLG) model is a very flexible family of distributions to analyze datasets in many different areas of science and technology…”
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Robust Estimators of the Generalized Log-Gamma Distribution by Agostinelli, Claudio, Marazzi, Alfio, Yohai, Victor J

“…We propose robust estimators of the generalized log-gamma distribution and, more generally, of location-shape-scale families of distributions. A (weighted) Qτ…”
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Evaluation of the consistency of Acute Physiology and Chronic Health Evaluation (APACHE II) scoring in a surgical intensive care unit by Berger, M M, Marazzi, A, Freeman, J, Chioléro, R

“…To determine the applicability of the Acute Physiology and Chronic Health Evaluation (APACHE II) scoring system in a Swiss ICU, and to evaluate its utility in…”
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Robust accelerated failure time regression by Locatelli, Isabella, Marazzi, Alfio, Yohai, Victor J.

“…Robust estimators for accelerated failure time models with asymmetric (or symmetric) error distribution and censored observations are proposed. It is assumed…”
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Dissecting the compression of mortality in Switzerland, 1876-2005 by Cheung, Siu Lan Karen, Robine, Jean-Marie, Paccaud, Fred, Marazzi, Alfio

“…This paper aims to examine changes in common longevity and variability of the adult life span, and attempts to answer whether or not the compression of…”
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Robust Response Transformations Based on Optimal Prediction by Marazzi, Alfio, Villar, Ana J., Yohai, Victor J.

“…Nonlinear regression problems can often be reduced to linearity by transforming the response variable (e.g., using the Box-Cox family of transformations). The…”
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High hyperdiploid acute lymphoblastic leukemia in adults shows clonal heterogeneity and chromosomal instability at diagnosis and during the course of the disease by Talamo, Anna, Marazzi, Alfio, Rovo, Alicia, Schanz, Urs, Tichelli, André, Chalandon, Yves, Jotterand, Martine

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Neurofibromatosis of von Recklinghausen: A Quantitative Study of the Epidermal Keratinocyte and Melanocyte Populations by Frenk, Edgar, Marazzi, Alfio

“…The numerical keratinocyte to melanocyte relation was studied in café au lait spots and adjacent normally pigmented skin of 9 patients with classical…”
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Fitting the Distributions of Length of Stay by Parametric Models by Marazzi, Alfio, Paccaud, Fred, Ruffieux, Christiane, Beguin, Claire

“…Objectives. The purpose of this study was to assess the adequacy of three widely used models-Lognormal, Weibull, and Gamma-for describing the distribution of…”
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Optimal robust estimates using the Hellinger distance by Marazzi, Alfio, Yohai, Victor J

“…Optimal robust M-estimates of a multidimensional parameter are described using Hampel's infinitesimal approach. The optimal estimates are derived by minimizing…”
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Adaptively truncated maximum likelihood regression with asymmetric errors by Marazzi, Alfio, Yohai, Victor J

“…We consider robust estimators for the linear regression model with asymmetric (or symmetric) error distribution. We assume that the error model belongs to a…”
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