نتایج جستجو برای: theil
تعداد نتایج: 675 فیلتر نتایج به سال:
Changes in vegetation activity are driven by multiple natural and anthropogenic factors, which can be reflected by Normalized Difference Vegetation Index (NDVI) derived from satellites. In this paper, NDVI trends from 1982 to 2012 are first estimated by the Theil–Sen median slope method to explore their spatial and temporal patterns. Then, the impact of climate variables and human activity on t...
We characterize the Theil ordering of income inequality by means of ordinal axioms only.
In this article, we propose the use of the Mahalanobis depth to construct fully affine equivalent Theil-Sen estimators of parameters in a multiple linear model. Our construction includes the spatial depth-based Theil-Sen estimators as a special case. We exhibit that the efficiency of the proposed estimators relative to the least squares estimators increases with the number of parameters under i...
In this article, we propose the Theil-Sen estimators of parameters in a multiple linear regression model based on a multivariate median, generalizing the Theil-Sen estimator in a simple linear regression model. The proposed estimator is shown to be robust, consistent and asymptotically normal under mild conditions, and super-efficient when the error distribution is discontinuous. It can be chos...
Marc A. Willaredt, Kerstin Hasenpusch-Theil, Humphrey Gardner, Igor Kitanovic, Vera Hirschfeld-Warneken, Christian Gojak, Karin Gorgas, C. Lulu Bradford, Joachim Spatz, Stefan Woelfl, Thomas Theil, Kerry L. Tucker 1 Interdisciplinary Center for Neurosciences, University of Heidelberg, Heidelberg, Germany 2 Dept. of Anatomy, University of Heidelberg, Heidelberg, Germany 3 Centres for Neuroscienc...
Marc A. Willaredt, Kerstin Hasenpusch-Theil, Humphrey Gardner, Igor Kitanovic, Vera Hirschfeld-Warneken, Christian Gojak, Karin Gorgas, C. Lulu Bradford, Joachim Spatz, Stefan Woelfl, Thomas Theil, Kerry L. Tucker 1 Interdisciplinary Center for Neurosciences, University of Heidelberg, Heidelberg, Germany 2 Dept. of Anatomy, University of Heidelberg, Heidelberg, Germany 3 Centres for Neuroscienc...
Marc A. Willaredt, Kerstin Hasenpusch-Theil, Humphrey Gardner, Igor Kitanovic, Vera Hirschfeld-Warneken, Christian Gojak, Karin Gorgas, C. Lulu Bradford, Joachim Spatz, Stefan Woelfl, Thomas Theil, Kerry L. Tucker 1 Interdisciplinary Center for Neurosciences, University of Heidelberg, Heidelberg, Germany 2 Dept. of Anatomy, University of Heidelberg, Heidelberg, Germany 3 Centres for Neuroscienc...
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