188 citations · 273 across the 20 of their papers we have counts for
6 papers · 1 filter
Multivariate Location and Scatter Matrix Estimation Under Cellwise and Casewise Contamination
Andy Leung, Victor J. Yohai, Ruben H. Zamar
We consider the problem of multivariate location and scatter matrix estimation when the data contain cellwise and casewise outliers. Agostinelli et al. (2015) propose a two-step ap…
Robust regression estimation and inference in the presence of cellwise and casewise contamination
Andy Leung, Hongyang Zhang, Ruben H. Zamar
Cellwise outliers are likely to occur together with casewise outliers in modern data sets with relatively large dimension. Recent work has shown that traditional robust regression…
Propagation of outliers in multivariate data
Fatemah Alqallaf, Stefan Van Aelst, Victor J. Yohai +1
We investigate the performance of robust estimates of multivariate location under nonstandard data contamination models such as componentwise outliers (i.e., contamination in each…
Discussion: Conditional growth charts
Matias Salibian-Barrera, Ruben H. Zamar
Discussion of Conditional growth charts [math.ST/0702634]
Robust nonparametric inference for the median
Victor J. Yohai, Ruben H. Zamar
We consider the problem of constructing robust nonparametric confidence intervals and tests of hypothesis for the median when the data distribution is unknown and the data may cont…
Uniform asymptotics for robust location estimates when the scale is unknown
Matias Salibian-Barrera, Ruben H. Zamar
Most asymptotic results for robust estimates rely on regularity conditions that are difficult to verify in practice. Moreover, these results apply to fixed distribution functions.…