Results 41 to 50 of about 226,078 (183)

Some Characterizations of the Distribution of the Condition Number of a Complex Gaussian Matrix

open access: yesSpecial Matrices, 2020
The objective of this paper is to characterize the distribution of the condition number of a complex Gaussian matrix. Several new distributional properties of the distribution of the condition number of a complex Gaussian matrix are given.
Shakil M., Ahsanullah M.
doaj   +1 more source

Evidence for a Waalian thermomer pollen record from the research borehole Heidelberg UniNord, Upper Rhine Graben, Baden-Württemberg [PDF]

open access: yesEiszeitalter und Gegenwart, 2009
A pollen record from the borehole Heidelberg UniNord, in the northern Upper Rhine Graben shows evidence for one of the rare Waalian thermomers. The record may not comprise the complete thermomer it certainly reflects a sort of succession, initiated by ...
J. Hahne, D. Ellwanger, R. Stritzke
doaj   +1 more source

Shannon Information in K-records for Pareto-type Distributions

open access: yesJournal of Statistical Theory and Applications (JSTA), 2018
Pareto distributions provides models for many applications in the social, natural and physical sciences. In this paper, we derive the Shannon information contained in upper (lower) k-record values and associated k-record times of Pareto-type ...
Zohreh Zamani, Mohsen Madadi
doaj   +1 more source

Extropy and Some of Its More Recent Related Measures for Concomitants of K-Record Values in an Extended FGM Family

open access: yesMathematics, 2023
This study uses an effective, recently extended Farlie–Gumbel–Morgenstern (EFGM) family to derive the distribution of concomitants of K-record upper values (CKRV).
Mohamed A. Abd Elgawad   +6 more
doaj   +1 more source

Maximum Likelihood Estimation of Parameters in Exponential Power Distribution with Upper Record Values

open access: yes, 2017
The exponential power (EP) distribution is a very important distribution that was used by survival analysis and related with asymmetrical EP distribution. Many researchers have discussed statistical inference about the parameters in EP distribution using
Zhi, Tianchen
openaire   +4 more sources

Reconstructing Nitrogen Sources to Earth’s Earliest Biosphere at 3.7 Ga

open access: yesFrontiers in Earth Science, 2021
Earth’s sedimentary record has preserved evidence of life in rocks of low metamorphic grade back to about 3.2–3.5 billion years ago (Ga). These lines of evidence include information about specific biological metabolisms, permitting the reconstruction of ...
Eva E. Stüeken   +5 more
doaj   +1 more source

ON CHARACTERIZATIONS OF CONTINUOUS DISTRIBUTIONS BY CONDITIONAL EXPECTATIONS OF UPPER RECORD VALUES

open access: yesJournal of the Chungcheong Mathematical Society, 2012
In this paper, general classes of continuous distributions are characterized by considering the conditional expectations of functions of upper record statistics. The specific distribution considered as a particular case of the general class of distribution are Exponential, Exponential Power(EP), Inverse Weibull, Beta Gumbel, Modified Weibull(MW ...
Hyun-Woo Jin, Min-Young Lee
openaire   +1 more source

On weighted cumulative past (residual) inaccuracy for record values

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we propose the weighted cumulative past (residual) inaccuracy for record values. For this concept, we obtain some properties and characterization results such as relationships with other reliability functions, bounds, stochastic ordering ...
Safieh Daneshi   +2 more
doaj   +1 more source

Statistical Inference Based on Upper Record Values

open access: yes, 2013
The goal of this thesis is to examine methods of statistical inference based on upper record values. This includes estimation of parameters based on samples of record values and prediction of future record values. We first define and discuss record times
Luckett, Daniel J.
core   +1 more source

Technical note: False low turbidity readings from optical probes during high suspended-sediment concentrations [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Turbidity, a measure of water clarity, is monitored for a variety of purposes including (1) to help determine whether water is safe to drink, (2) to establish background conditions of lakes and rivers and detect pollution caused by construction ...
N. Voichick   +2 more
doaj   +1 more source

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