Articles with "gamma distribution" as a keyword



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Large Deviations for Sums of Bounded Functions of a Normalized Sample Under Gamma Distribution

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Published in 2017 at "Journal of Mathematical Sciences"

DOI: 10.1007/s10958-017-3499-9

Abstract: We study large deviations of a widely used class of scale-free statistics under gamma distribution. We show that the constraints on the functions defining these statistics can be relaxed with respect to the previously obtained… read more here.

Keywords: sums bounded; deviations sums; gamma distribution; bounded functions ... See more keywords
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Ages of cited references and growth of scientific knowledge: an explication of the gamma distribution in business and management disciplines

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Published in 2021 at "Scientometrics"

DOI: 10.1007/s11192-020-03761-6

Abstract: The purpose of this study was to assess the gamma distribution as a model of the distribution of ages of cited references in corpora of scientific literature, and to derive inferences from the parameters of… read more here.

Keywords: ages cited; cited references; gamma distribution; growth ... See more keywords
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Approximations for the inverse cumulative distribution function of the gamma distribution used in wireless communication

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Published in 2020 at "Heliyon"

DOI: 10.1016/j.heliyon.2020.e05523

Abstract: The use of quantile functions of probability distributions whose cumulative distribution is intractable is often limited in Monte Carlo simulation, modeling, and random number generation. Gamma distribution is one of such distributions, and that has… read more here.

Keywords: cumulative distribution; distribution; gamma distribution; distribution function ... See more keywords
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Modelling caprine age-at-death profiles using the Gamma distribution

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Published in 2018 at "Journal of Archaeological Science"

DOI: 10.1016/j.jas.2018.08.015

Abstract: Abstract Age-at-death profiles constructed from archaeozoological data have been used for decades to infer the goals of prehistoric herd management strategies. Several ‘ideal’ profiles have been proposed as models for the optimal kill-off profiles that… read more here.

Keywords: age death; using gamma; age; death profiles ... See more keywords
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Approximation of the median of the gamma distribution

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Published in 2017 at "Journal of Number Theory"

DOI: 10.1016/j.jnt.2016.11.019

Abstract: Abstract In this paper, we provide continued fraction sequences and other sequences to approximate the median of the gamma distribution. Furthermore, we consider the approximation of the Ramanujan sequence. read more here.

Keywords: median gamma; approximation median; gamma distribution;
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Precipitation assimilation from gauge and satellite products by a Bayesian method with Gamma distribution

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Published in 2020 at "International Journal of Remote Sensing"

DOI: 10.1080/01431161.2020.1823037

Abstract: ABSTRACT A novel multiple precipitation assimilation framework based on Bayesian merging with Gamma distribution (BMG) is proposed in this study. Thirty-four rainfall events are collected from 2010 to 2015 over Jinhua River watershed, China. Seven… read more here.

Keywords: gauge; precipitation; rainfall; gamma distribution ... See more keywords
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A bimodal gamma distribution: properties, regression model and applications

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Published in 2020 at "Statistics"

DOI: 10.1080/02331888.2020.1764560

Abstract: ABSTRACT In this paper, we propose a bimodal gamma distribution using a quadratic transformation based on the alpha-skew-normal model. We discuss several properties of this distribution such as mean, variance, moments, hazard rate and entropy… read more here.

Keywords: bimodal gamma; regression model; model; distribution properties ... See more keywords
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Inference for IZAWA’S Bivariate Gamma Distribution

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Published in 2018 at "Communications in Statistics - Theory and Methods"

DOI: 10.1080/03610926.2018.1494288

Abstract: Abstract In this article, we aim to establish some theoretical properties of Izawa’s bivariate gamma distribution having equal shape parameters. First, we propose a procedure to obtain the maximum likelihood estimates and derive an expression… read more here.

Keywords: bivariate gamma; maximum likelihood; gamma distribution; izawa bivariate ... See more keywords
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Fast and Accurate Approximation of the Full Conditional for Gamma Shape Parameters

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Published in 2019 at "Journal of Computational and Graphical Statistics"

DOI: 10.1080/10618600.2018.1537929

Abstract: Abstract The gamma distribution arises frequently in Bayesian models, but there is not an easy-to-use conjugate prior for the shape parameter of a gamma. This inconvenience is usually dealt with by using either Metropolis–Hastings moves,… read more here.

Keywords: shape; approximation; full conditional; gamma distribution ... See more keywords
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Machine Learning Approach-Based Gamma Distribution for Brain Tumor Detection and Data Sample Imbalance Analysis

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2018.2878276

Abstract: Recently, artificial intelligence applications in magnetic resonance imaging have been applied in several clinical studies. The analysis of brain tumors without human intervention is considered a significant area of research because the extracted brain images… read more here.

Keywords: gamma distribution; learning approach; tumor; machine learning ... See more keywords
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Weighted Analogue of Inverse Gamma Distribution: Statistical Properties, Estimation and Simulation Study

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Published in 2019 at "Pakistan Journal of Statistics and Operation Research"

DOI: 10.18187/pjsor.v15i1.2238

Abstract: In this article we propose a new weighted version of inverse Gamma distribution known as Weighted Inverse Gamma distribution (WIGD). We examine the Length biased and Area biased versions of Weighted Inverse Gamma distribution. Basic… read more here.

Keywords: gamma distribution; inverse gamma; simulation study;