Kayode S. Adekeye
YOU?
Author Swipe
View article: Process capability indices for Marshall–Olkin inverse log-logistic distribution
Process capability indices for Marshall–Olkin inverse log-logistic distribution Open
Process capability analysis is a vital tool in quality management that enables organizations to evaluate and enhance their processes. Real-world data are mostly non-normal, they often deviate from the assumption of normality. The estimator…
View article: Improved Non-Parametric Double Homogenously Weighted Moving Average Control Chart for Monitoring Changes in Process Location
Improved Non-Parametric Double Homogenously Weighted Moving Average Control Chart for Monitoring Changes in Process Location Open
Parametric control charts' statistical performance often raises concerns when dealing with processes that lack a predefined probability distribution. In such cases, non-parametric control charts emerge as a viable alternative. Additionally…
View article: Hotelling T<sup>2</sup> control chart based on minimum vector variance for monitoring high‐dimensional correlated multivariate process
Hotelling T<sup>2</sup> control chart based on minimum vector variance for monitoring high‐dimensional correlated multivariate process Open
Multivariate control charts are practical tools that simultaneously monitor several correlated quality characteristics in a process. Monitoring high‐dimensional data structures is challenging because, in most cases, the process sample size…
View article: On logistic regression versus support vectors machine using vaccination dataset
On logistic regression versus support vectors machine using vaccination dataset Open
The performance of two classification techniques, logistic regression and Support Vector Machines (SVMs), in assessing vaccination data is investigated in this study. The model was trained based on leave-out-one cross validation to obtain …
View article: Modelling the response rate of Apache web server using extreme value theory
Modelling the response rate of Apache web server using extreme value theory Open
Delay in response is associated with servers used in processing data particularly when there is large number of users. Consequently, the performance of web servers plays a crucial role in the digital ecosystem, necessitating analysing thei…
View article: Course Delivery Evaluation as an Instrument for Quality Enhancement in Higher Education Institutions
Course Delivery Evaluation as an Instrument for Quality Enhancement in Higher Education Institutions Open
Course delivery evaluation of programmes by students in higher education institutions has become a global phenomenon for improving the quality of teaching and learning. From the past, it has been discovered that the quality of effective te…
View article: Regularized Models for Fitting Zero-Inflated and Zero-Truncated Count Data: A Comparative Analysis
Regularized Models for Fitting Zero-Inflated and Zero-Truncated Count Data: A Comparative Analysis Open
Generalized Linear Models (GLMs) are widely recognized for their efficacy in fitting count data, superior to the Ordinary Least Squares (OLS) approach.The incapability of OLS to suitably handle count data can be attributed to its tendency …
View article: On the Performance of Dirichlet Prior Mixture of Generalized Linear Mixed Models for Zero Truncated Count Data
On the Performance of Dirichlet Prior Mixture of Generalized Linear Mixed Models for Zero Truncated Count Data Open
In this study, the performance of Dirichlet Process Mixture of Generalized Linear Mixed Models (DPMGLMMs) was
\nexamined against some competing models for fitting zero-truncated count data. The Bayesian models such as Monte Carlo Markov
\n…
View article: Generalized Gamma-CUSUM control chart with application of COVID-19 deaths
Generalized Gamma-CUSUM control chart with application of COVID-19 deaths Open
The increase in the number of infections and the worrisome state of mortality linked to the COVID-19 pandemic demand an optimal statistical model and efficient monitoring scheme to analyze the deaths. This paper aims to model the COVID-19 …
View article: A Topic-Specific Evaluation of Students’ Attitudes Towards Statistics
A Topic-Specific Evaluation of Students’ Attitudes Towards Statistics Open
This study involves an evaluation of students’ attitudes towards various topics in statistics. The purpose of the study is to determine how students’ attitudes towards statistics vary across different topics and to determine possible chang…
View article: On Determination of Behavioural Characteristics Responsible for Psychopathic Personality Traits
On Determination of Behavioural Characteristics Responsible for Psychopathic Personality Traits Open
Abnormal and irrational behaviour called psychopathic traits has eroded our society; it increases daily, thus leading to increased crime. The study focuses on determining behavioural characteristics that may be responsible for psychopathic…
View article: A Bayesian Generalized Regression Approach for estimating parameters in the Item Sum Technique of sensitive surveys
A Bayesian Generalized Regression Approach for estimating parameters in the Item Sum Technique of sensitive surveys Open
Most respondents find it difficult to respond to sensitive questions in surveys especially providing information that require one to disclose behaviors that are possibly against social norms. This study involves solving the problem of non-…
View article: On Pooled OLS and Panel Regression Models for Assessing the Contributions of Electronic Payment System on Commercial Banks Profitability
On Pooled OLS and Panel Regression Models for Assessing the Contributions of Electronic Payment System on Commercial Banks Profitability Open
This study examined the impact of electronic payment system on the profitability of commercial banks in Nigeria. Pooled OLS and Panel regression models were fitted on the data extracted from the banks’ annual reports, Nigerian interbank se…
View article: INTEGRATION OF BAYESIAN MODEL AND ADAPTIVE CLUSTERED SAMPLING INTO CONTACT TRACING TO CURB THE SPREAD OF COVID -19 CASES
INTEGRATION OF BAYESIAN MODEL AND ADAPTIVE CLUSTERED SAMPLING INTO CONTACT TRACING TO CURB THE SPREAD OF COVID -19 CASES Open
Covid-19 is a communicable virus that causes serious illness (Severe acutepiratory syndrome (SARS)) and middle east respiratory syndrome (MARS)). İts outbreak started in Wuhan, China on December 8, 2019. Fever, cough, tiredness are its sig…
View article: A Review of Change Point Estimation Methods for Process Monitoring
A Review of Change Point Estimation Methods for Process Monitoring Open
When one or more observations fall outside the control limits, the chart signals the existence of a change in the process. Change point detection is helpful in modelling and prediction of time series and is found in broader areas of applic…
View article: X and R control charts based on marshall-olkin inverse log-logistic distribution for positive skewed data
X and R control charts based on marshall-olkin inverse log-logistic distribution for positive skewed data Open
The fundamental assumption of variable control charts is that the data are normally distributed and spread randomly about the mean. Process data are not always normally distributed, hence there is need to set up appropriate control charts …
View article: On Performance of Two-Parameter Gompertz-Based <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mover accent="true"><mml:mi>X</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:mrow></mml:math> Control Charts
On Performance of Two-Parameter Gompertz-Based Control Charts Open
In this paper, two methods of control chart were proposed to monitor the process based on the two-parameter Gompertz distribution. The proposed methods are the Gompertz Shewhart approach and Gompertz skewness correction method. A simulatio…
View article: Mathematical Analysis of a Reactive Viscous Flow through a Channel Filled with a Porous Medium
Mathematical Analysis of a Reactive Viscous Flow through a Channel Filled with a Porous Medium Open
An investigation has been carried out to study entropy generation in a viscous, incompressible, and reactive fluid flowing steadily through a channel with porous materials. Approximate solutions for both velocity and temperature fields are…