Results 11 to 20 of about 100,609 (297)

IMPROVEMEnTS In ASSESSInG THE FORECASTS ACCURACY - A CASE STUDY FOR ROMAnIAn MACROECOnOMIC FORECASTS [PDF]

Serbian Journal of Management, 2013
The objective of this study is to introduce new forecasts’ accuracy measures for two types of predictions: point forecasts (radical of order n of the mean of squared errors, mean for the differencebetween each predicted value and the mean of the ...
Mihaela (Simionescu) Bratu
doaj   +1 more source

Some laws of a system with a constant amount of energy [PDF]

Science of Sintering, 2008
In this paper, different relationships and functional dependences of a system with a constant energy U=const., have been analyzed. The combinatorial nature of this analysis enables the conclusion that a family of entropy curves i.e.
Blagojević D., Popović H., Popović Z., Stefanović D., Stefanović I.   +4 more
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U-Statistics based on spacings [PDF]

Journal of Statistical Planning and Inference, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tung, David D, Jammalamadaka, S Rao
openaire   +3 more sources

New classes at Specific Age: Properties and Testing hypotheses [PDF]

Journal of Statistical Theory and Applications (JSTA), 2013
In this article we introduce new classes of life distributions namely new better (worse) than used in expectation at specific age t0 NBUE-t0 (NWUE-t0) and harmonic new better (worse) than used in expectation at specific age t0 HNBUE-t0 (HNWUE-t0).
M.A.W. Mahmoud, M.E. Moshref, A.M. Gadallah, A.I. Shawky   +3 more
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A retrospective cross-sectional study for predicting 72-h mortality in patients with serum aspartate aminotransferase levels ≥ 3000 U/L

Scientific Reports, 2021
Risk factors associated with 72-h mortality in patients with extremely high serum aspartate aminotransferase levels (AST; ≥ 3000 U/L) are unknown. This single-centre, retrospective, case-controlled, cross-sectional study obtained data from medical ...
Kai Saito, Hitoshi Sugawara, Tamami Watanabe, Akira Ishii, Takahiko Fukuchi   +4 more
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U-Statistic for Multivariate Stable Distributions

Journal of Probability and Statistics, 2017
A U-statistic for the tail index of a multivariate stable random vector is given as an extension of the univariate case introduced by Fan (2006). Asymptotic normality and consistency of the proposed U-statistic for the tail index are proved theoretically.
Mahdi Teimouri, Saeid Rezakhah, Adel Mohammadpour   +2 more
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Checking Heteroscedasticity in Partially Linear Single-Index Models Using Pairwise Distance

IEEE Access, 2020
In this article, a new test is proposed for partially linear single-index models (PLSIM) based on the pairwise distances of the sample points, to test heteroscedasticity.
Jian-Qiang Zhao, Jianquan Li, Yan-Yong Zhao, Junyan He, Waled Khaled   +4 more
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On the combination of the sign and Maesono tests for simmetry and its efficiency

Statistica, 2007
We propose a new test for the simmetry hypothesis which is a combination of the sign statistic and the Wr Maesono statistic. The latter generalizes the Wilcoxon statistic and coincides with it for r = 2. The proposed statistic belongs to the class of non-
Giuseppe Burgio, Yakov Yu. Nikitin
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The detection of the methylated Wif-1 gene is more accurate than a fecal occult blood test for colorectal cancer screening.

PLoS ONE, 2014
BackgroundThe clinical benefit of guaiac fecal occult blood tests (FOBT) is now well established for colorectal cancer screening. Growing evidence has demonstrated that epigenetic modifications and fecal microbiota changes, also known as dysbiosis, are ...
Aurelien Amiot, Hicham Mansour, Isabelle Baumgaertner, Jean-Charles Delchier, Christophe Tournigand, Jean-Pierre Furet, Jean-Pierre Carrau, Florence Canoui-Poitrine, Iradj Sobhani, CRC group of Val De Marne   +9 more
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Anomaly-Background Separation and Geochemical Map Generation for Pb and Zn in Parkam District Based on U–Statistical Method, Kerman, Iran [PDF]

International Journal of Economic and Environment Geology, 2013
There are several statistical methodologies presented for separating anomalous values from background values leading to determination of anomalous areas.
S.S. Ghannadpour, A. Hezarkhani, E. Farahbakhsh   +2 more
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