College of Arts & Sciences: Recent submissions
Now showing items 801-820 of 3630
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The cycle-complete graph Ramsey number r ( C 8 , K 8 )
( Tokyo University of Science , 2007 , Article)The cycle-complete graph Ramsey number r ( C m , K n ) is the smallest integer N such that every graph G of order N contains a cycle C m on m vertices or has independent number α ( G ) ≥ n . ... -
The basis number of the strong product of paths and cycles with bipartite graphs
( Central Missouri State University , 2007 , Article)The basis number of a graph G is defined to be the least integer d such that there is a basis B of the cycle space of G such that each edge of G is contained in at most d members of B. MacLane [13] proved that a graph G ... -
The theta-complete graph Ramsey number r(θk, K5); k = 7, 8, 9
( Forum-Editrice Universitaria Udinese SRL , 2021 , Article)Finding the Ramsey number is an important problem of the well-known family of the combinatorial problems in Ramsey theory. In this work, we investigate the Ramsey number r(θs, K5) for s = 7, 8, 9 where θs is the set of ... -
Large sample and bootstrap intervals for the gamma scale parameter based on grouped data
( Wayne State University , 2006 , Article)Interval estimation of the scale parameter of the gamma distribution using grouped data is considered in this article. Exact intervals do not exist and approximate intervals are needed Recently, Chen and Mi (2001) proposed ... -
Improved Likelihood Inference Procedures for the Logistic Distribution
( MDPI , 2022 , Article)We consider third-order likelihood inferences for the parameters, quantiles and reliability function of the logistic distribution. This theory involves the conditioning and marginalization of the likelihood function. The ... -
Confidence intervals for quantiles using record values from the generalized exponential distribution
( Nova Science Publishers, Inc. , 2012 , Book chapter)Likelihood-based and bootstrap confidence intervals for the quantiles of the generalized exponential distribution based on record values are developed. Intervals for the difference of quantiles based on two independent ... -
Confidence intervals for the two-parameter exponential reliability with type II censored data
( Taylor and Francis Ltd. , 2016 , Article)We consider interval estimation of the reliability of the two-parameter exponential distribution.We consider asymptotic intervals, Bayesian, as well as intervals based on the generalized pivot variable. Transformations to ... -
Interval Estimation in Lifetime Distributions Using Progressively Type II Censored Data
( World Scientific , 2022 , Article)In this paper, we developed a method for constructing confidence intervals for the parameters of lifetime distributions based on progressively type II censored data. The method produces closed form expressions for the ... -
A simple method for finding empirical likelihood type intervals for the ROC curve
( Wayne State University , 2007 , Article)Interval estimation of the ROC curve is considered using the empirical likelihood techniques. Suggested is a procedure that is very simple computationally and avoids the constrained optimization problems usually faced with ... -
Refined Inference on the Scale Parameter of the Generalized Logistic Distribution Based on Adjusted Profile Likelihood Functions
( MDPI , 2022 , Article)We consider inference based on the profile likelihood function for the scale parameter of the generalized logistic distribution. This distribution is a generalization of the logistic distribution, a symmetric distribution ... -
Inference in simple regression for the intercept utilizing prior information on the slope
( Wayne State University , 2011 , Article)Shrinkage type estimators are developed for the intercept parameter of a simple linear regression model and the case when it is suspected a priori that the slope parameter is equal to some specific value is considered. ... -
Interval estimation of the stress-strength reliability in the two-parameter exponential distribution based on records
( Taylor and Francis Ltd. , 2014 , Article)We consider interval estimation of the stress-strength reliability in the two-parameter exponential distribution based on records. We constructed Bayesian intervals, Bootstrap intervals and intervals using the generalized ... -
Confidence intervals for the quantiles of the Weibull distribution based on record values
( Nova Science Publishers Inc , 2008 , Article)We consider likelihood-based and bootstrap confidence intervals for the quantiles based on record values from the Weibull distribution. We developed also intervals for the difference of quantiles based on two independent ... -
Empirical likelihood inference for population quantiles with unbalanced ranked set samples
( Taylor & Francis Group , 2011 , Article)We consider nonparametric interval estimation for the population quantiles based on unbalanced ranked set samples. We derived the large sample distribution of the empirical log likelihood ratio statistic for the quantiles. ... -
Preliminay test estimation in the two parameter exponential distribution based on record values
(2010 , Article)We considered estimation of the parameters of the exponential distribution based on record data in the presence of prior information. Preliminary test and shrinkage estimators are developed and their properties are ... -
Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar
( BMJ Publishing Group , 2023 , Article)Objective To assess the evolution of COVID-19 severity and fatality in a unique setting that consistently applied, throughout the pandemic, rigorous and standardised criteria for defining severe COVID-19 outcomes. Methods ... -
Maximum Likelihood Estimation in the Inverse Weibull Distribution with Type II Censored Data
( Horizon Research Publishing , 2022 , Article)We consider maximum likelihood estimation for the parameters and certain functions of the parameters in the Inverse Weibull (IW) distribution based on type II censored data. The functions under consideration are the Mean ... -
An attribute control chart for the inverse Weibull distribution under truncated life tests
( Elsevier Ltd , 2022 , Article)Statistical Process Control (SPC) is applied to monitor production processes in order to discover any problems or issues that may arise during the production process and to help in finding solutions for these issues. In ... -
Coins from Al-Zubarah, Qatar: A historical-scientific study
( Magnus Group LLC , 2021 , Conference)A surface archaeological coins “Zu/111 found at the old town of Al-Zubarah, Qatar” has been analysed complementarily using historic and scientific characterization techniques. For example, a scanning electron microscope ... -
ESTIMATION OF THE LOCATION-SCALE PARAMETERS BASED ON RANKED SET SAMPLING COMBINED WITH ADDITIONAL BINOMIAL INFORMATION
( ISOSS PUBLICATIONS , 2023 , Article)In this paper, we propose a modified version of ranked set sample which allows for the incorporation of more information in the inference procedure at almost no cost. This procedure is studied for the location-scale family ...
