Results 1 to 10 of about 314 (54)

On the use of L-functionals in regression models

Open Mathematics, 2023
In this article, we survey and unify a large class or LL-functionals of the conditional distribution of the response variable in regression models.
Hössjer Ola, Karlsson Måns
doaj   +1 more source

Step-up simultaneous tests for identifying active effects in orthogonal saturated designs [PDF]

, 2007
A sequence of null hypotheses regarding the number of negligible effects (zero effects) in orthogonal saturated designs is formulated. Two step-up simultaneous testing procedures are proposed to identify active effects (nonzero effects) under the ...
Wang, Weizhen, Wu, Samuel S.
core   +4 more sources

Fast implementation of the Tukey depth [PDF]

, 2016
Tukey depth function is one of the most famous multivariate tools serving robust purposes. It is also very well known for its computability problems in dimensions $p \ge 3$.
Liu, Xiaohui
core   +1 more source

Quantifying identifiability in independent component analysis [PDF]

, 2014
We are interested in consistent estimation of the mixing matrix in the ICA model, when the error distribution is close to (but different from) Gaussian.
Falkeborg, Benjamin, Maathuis, Marloes H., Sokol, Alexander   +2 more
core   +2 more sources

Robust improper maximum likelihood: tuning, computation, and a comparison with other methods for robust Gaussian clustering [PDF]

, 2016
The two main topics of this paper are the introduction of the "optimally tuned improper maximum likelihood estimator" (OTRIMLE) for robust clustering based on the multivariate Gaussian model for clusters, and a comprehensive simulation study comparing ...
Coretto, Pietro, Hennig, Christian
core   +4 more sources

Adaptive confidence balls [PDF]

, 2006
Adaptive confidence balls are constructed for individual resolution levels as well as the entire mean vector in a multiresolution framework. Finite sample lower bounds are given for the minimum expected squared radius for confidence balls with a ...
Cai, T. Tony, Low, Mark G.
core   +3 more sources

Disaggregation behavior in the terrestrial isopod Porcellionides pruinosus as a new ecotoxicological endpoint for assessing infochemical disrupting activity

Ecological Indicators
Among rapid ecotoxicological bioassays for screening soil quality, avoidance behavior tests on gregarious edaphic species such as Porcellionides pruinosus are widely used.
Lorenzo Federico, Gianna Serafina Monti, Susana Loureiro, Sara Villa   +3 more
doaj   +1 more source

Nonquadratic estimators of a quadratic functional [PDF]

, 2005
Estimation of a quadratic functional over parameter spaces that are not quadratically convex is considered. It is shown, in contrast to the theory for quadratically convex parameter spaces, that optimal quadratic rules are often rate suboptimal.
Cai, T. Tony, Low, Mark G.
core   +4 more sources

Uniform asymptotics for robust location estimates when the scale is unknown

, 2004
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.
Salibian-Barrera, Matias, Zamar, Ruben H.   +1 more
core   +1 more source

Comparison of robust tests for genetic association using case-control studies

, 2006
In genetic studies of complex diseases, the underlying mode of inheritance is often not known. Thus, the most powerful test or other optimal procedure for one model, e.g. recessive, may be quite inefficient if another model, e.g.
Freidlin, Boris, Gastwirth, Joseph L., Zheng, Gang   +2 more
core   +1 more source