Bd. 1 Nr. 4 (2024): International Journal of Development Mathematics (IJDM)

Articles

• Derivation of Four-Point Integrator for the Solutions of Second-order Oscillatory Problems

  Lydia J. Kwari, Joshua Sunday, Joel N. Ndam (Autor/in)

  001 - 019

  • PDF (Englisch)

• Numerical Simulation of Lake Pollution Model via Crank-Nicolson Finite Difference Scheme

  Auwal Abdullahi, Auwal Ahmad (Autor/in)

  020 - 025

  • PDF (Englisch)

• A Hybrid of Direct Computational and Homotopy Analysis Methods for Solving Volterra-Fredholm Integro-Differential Equations

  SURAJO LAWAN BICHI, ABUBAKAR SADIQ AHMAD (Autor/in)

  026 - 037

  • PDF (Englisch)

• Formulation of Variable Step Block Backward Differentiation Formula for the Computation of Nonlinear Fuzzy Differential Equations

  Anthony C. Onyekonwu, Joshua Sunday, Joel N. Ndam (Autor/in)

  038 - 060

  • PDF (Englisch)

• Numerical Solutions for Radiative MHD Casson Nanofluid Flow with Slip, Heat Source, and Chemical Reactions over a Stretching Surface

  Soluade Joseph Aroloye (Autor/in); Olugbenga Fenuga, Isreal Abiala (Übersetzer/in)

  061 - 073

  • PDF (Englisch)

• Mathematical Model on the Dynamics of Crimes of Murder Incorporating Amnesty and Rehabilitation as Control Strategies

  Bello Bashir Lamido, Samuel Musa, Shuaibu Ahijo Abdullahi, Aliyu M. Awwal, Ibrahim A. Mohammed (Autor/in)

  074 - 089

  • PDF (Englisch)

• Computing the Order, Conjugacy Classes and Character Table of the Full Non-Rigid Group of Cyclopentane Chemical Compound using Wreath Product of Cyclic groups

  Samuel Tsok, Sabo Hamma, Muhammad S. Adamu (Autor/in)

  090 - 098

  • PDF (Englisch)

• Effects of Interfacial Parameters and Temperature on Effective Schottky Barrier Height of Metal-Wrapped (Al-Gan) Nanowire Schottky Diode

  Dogari John, Adam Usman, Yerima Benson (Autor/in)

  099 - 111

  • PDF (Englisch)

• An Assessment of Statistical Power for Analysis of Variance with Missing Data using Multiple Imputation

  aladespeter47@gmail.com Alade, Abraham Okolo, Supo Akinrefon, John Dike (Autor/in)

  112 - 123

  • PDF (Englisch)

• A Three-Parameter Exponential Frechet Distribution: Theory and Application

  Emmanuel Remi Omoboriowo, Biodun T. Efuwape, Timothy O. Olatayo (Autor/in)

  124 - 134

  • PDF (Englisch)

• Statistical Analysis of Poisson Bifurcated Autoregressive Modeling

  Emmanuel A. Ayanlowo, David Ifeoluwa Oladapo, Olayinka Olusegun Oladipupo, Timothy O. Olatayo (Autor/in)

  135 - 151

  • PDF (Englisch)

• Effect of Relaxation Times on Magnetization of Blood Proton Spins at Steady State using Improved Bloch NMR Fluid Flow Equation

  Lateef Rasheed, Usman Adam, Timtere Pascal, Agada L. Emeka, Rilwan Salau (Autor/in)

  152 - 165

  • PDF (Englisch)

• The Analysis of Hypo-Exponential and Hyper-Exponential Distributions in Solving Performance Measures for General Phase Type Distributions

  Sunday Olanrewaju Agboola (Autor/in); Abayomi Ayoade, Dekera Washachi, Mohammed Abdullahi (Übersetzer/in)

  177 - 190

  • PDF (Englisch)

• Handling Multicollinearity and Outliers: A Comparative Study of Some One and Two–Parameter Estimators Using Real-Life Data

  Kamoru Oyeleke, Timothy O. Olatayo, Biodun T. Efuwape (Autor/in)

  177 - 190

  • PDF (Englisch)

• This paper introduces a robust two-parameter estimator that is customized for logistic regression models, which tend to be sensitive to severe multicollinearity problems. Inflated standard errors and unreliability in the results stem from the problem of multicollinearity characterized by high correlations among predictor variables, which makes the parameter estimates in logistic regression unstable. Traditional approaches like the Maximum Likelihood Estimator (MLE) and one-parameter ridge-type estimators often perform poorly under these settings, thus calling for the development of more robust approaches. This new proposal is called New Biased Two Parameter (NBTP), which extends the ridge regression framework by introducing additional biasing parameters customized for an extreme multicollinear problem. The paper combines a theoretical analysis with extensive Monte Carlo simulations and real application to Pena data. It demonstrates that the new estimator, New Biased Two Parameter (NBTP), provides much more stable and accurate parameter estimates than previous methods. The results underscore the importance of using robust estimation methods within logistic regression, especially when multicollinearity may be widespread in fields such as medical research, finance, and the social sciences.

  David Ifeoluwa Oladapo, Biodun Efuwape, Timothy Olatayo (Autor/in)

  191 - 200

  • PDF (Englisch)

• Sim-Boxing Fraud Detection System Using Artificial Neural Network

  Bello M. Thaddeus, Murtala Muhammad, Yusuf M. Malgwi, Emmanuel Teman Martin (Autor/in)

  201 - 213

  • PDF (Englisch)

• Facial Detection and Recognition Analysis using Ontology-Driven Machine Learning Model

  Kayode Oluborode, Gregory M. Wajiga, Yusuf M. Malgwi (Autor/in)

  214 - 226

  • PDF (Englisch)

• Contagious Bovine Pleuropneumonia Prediction Using Random Forest Technique

  Adamu Musa, Bala P. Bulus (Autor/in)

  227 - 235

  • PDF (Englisch)

• Enhancing Security and Accessibility of Personal Records in Nigeria using Blockchain Technology: A Case Study of Modibbo Adama University, Yola

  Suleiman Sa'ad, Abubakar Chul Sani, Mohammed Bashir Ribadu, Abubakar Mohammed (Autor/in)

  236 - 248

  • PDF (Englisch)

• Foreign Exchange Prediction using Decision Tree Algorithm: A Machine Learning Approach

  Androcles Murray, DR. Asabe Ahmadu (Autor/in)

  249 - 270

  • PDF (Englisch)

• Modeling University Student Academic Performance in Nigeria: A Comparison of Seemingly Unrelated Regression Equations (Sure) and Multivariate Regression

  Abdulganiy A. Abdullahi, Olateju Alao Bamigbala, Ifeoma Ilochi, Magaji A. Umar (Autor/in)

  271 - 286

  • PDF (Englisch)