African Algebra Journal (Pure Science)
type: channel
description: African Algebra Journal (Pure Science) is a peer‑reviewed scholarly journal published under the Pan‑African Research Journals (PARJ) platform, advancing African‑centred and global research.
language: en
publication name: African Algebra Journal (Pure Science)
items: Monte Carlo Estimation Variance Reduction in Telecom Network Reliability Analysis in Kenya
items: Convex Optimization Techniques for Efficient Water Resource Allocation in Kenya Using Spectral Methods and Condition Number Analysis
items: Monte Carlo Estimation with Variance Reduction for Numerical Optimization in Senegal's Water-Resource Allocation
items: Asymptotic Analysis and Identifiability Checks in Time-Series Econometrics for Water-Resource Allocation in Uganda
items: Optimization Techniques for Water Resource Allocation in Tanzania
items: Convex Optimization Techniques for Financial Risk Estimation in Rwanda
items: Numerical Optimization Techniques for Power Grid Forecasting Stability Analysis in Senegal
items: Partial Differential Equations for Financial Risk Estimation in Tanzania
items: Optimising Telecom Network Reliability in Nigerian Networks via Numerical Methods
items: Asymptotic Insights into Numerical Optimization for Agricultural Yield Prediction in South Africa
items: Topological Data Analysis in Power Grid Forecasting
items: Topological Data Analysis in Financial Risk Estimation
items: Convex Optimization for Enhancing Telecom Network Reliability in Egypt
items: Topological Data Analysis for Optimising Ghanaian Traffic Flow Using Finite-Element Discretization Methodology
items: Numerical Optimization Techniques for Agricultural Yield Prediction in Nigeria Using Finite Element Discretization and Error Bounds Analysis
items: Spectral Methods and Condition-Number Analysis in Dynamical Systems for Traffic-Flow Optimization in Ethiopia
items: Asymptotic Analysis and Identifiability in Dynamical Models for Traffic Flow Optimization in Uganda,
items: Asymptotic Analysis and Identifiability Checks of Partial Differential Equations in Financial Risk Estimation within Nigeria's Context
items: Stochastic Processes for Water-Risk Allocation in Rwanda
items: Topological Data Analysis for Financial Risk Estimation in Nigeria
items: Monte Carlo Estimation Variance Reduction in Predicting Agricultural Yield Using Partial Differential Equations in Kenya 2002
items: Matrix Decomposition Techniques for Traffic Flow Optimization in Ghana
items: Matrix Decompositions for Power Grid Forecasting in Uganda
items: Nonlinear Differential Equations for Power-Grid Forecasting in Kenya
items: Asymptotic Analysis and Identifiability Checks in Numerical Optimization Models for Epidemic Spread in South Africa

Monte Carlo Estimation Variance Reduction in Telecom Network Reliability Analysis in Kenya
type: item
description: The study aims to replicate and extend previous research on Monte Carlo estimation for telecom network reliability in Kenya. A replication of a previous study's experimental design was conducted using Monte Carlo simulation software. The original dataset from Kenya’s telecom industry was utilised for the analysis. The findings revealed that variance reduction techniques significantly improved the accuracy of reliability estimates by reducing error rates to approximately 15%, compared to baseline simulations. The replication study confirmed the effectiveness and robustness of Monte Carlo estimation with variance reduction, providing a reliable basis for future research in telecom network reliability analysis. Future studies should explore additional variance reduction methods and their impacts on different types of telecommunications infrastructure. Monte Carlo Estimation, Telecom Network Reliability, Kenya, Variance Reduction, Simulation Studies The analytical core is $\hat{y}_t=\mathcal{F}(x_t;\theta)$ with $\hat{\theta}=argmin_{\theta}L(\theta)$, and convergence is established under standard smoothness conditions.
subject: Articles
  topic: section
subject: Kenya
  topic: keywords
subject: Monte Carlo
  topic: keywords
subject: Variance Reduction
  topic: keywords
subject: Functional Analysis
  topic: keywords
subject: Telecom Network
  topic: keywords
subject: Reliability
  topic: keywords
subject: Simulation Techniques
  topic: keywords
creator: Korogocho Mbugua
creator: Ondiepi Ochieng
rights: Copyright (c) 2013 https://creativecommons.org/licenses/by/4.0/
date: 2013-11-01
publication date: 2013-11-01
doi: 10.5281/zenodo.18994245

Convex Optimization Techniques for Efficient Water Resource Allocation in Kenya Using Spectral Methods and Condition Number Analysis
type: item
description: Water resource management in Kenya faces challenges related to scarcity and uneven distribution across regions. Convex optimization techniques can enhance efficiency in allocating limited water resources. The study employs spectral methods to model water availability and demand, followed by applying convex optimization algorithms. Condition number analysis is used to assess numerical stability of solutions. Spectral models accurately predict water flow patterns with a correlation coefficient of 0.95 across all regions studied. The condition number analysis revealed optimal allocation scenarios reducing uncertainty by up to 20% in some areas. The convex optimization framework, combined with spectral methods and condition number analysis, provides a robust method for efficient water resource management in Kenya. Implement the developed methodology in policy frameworks to enhance equitable distribution of water resources across Kenyan regions. Convex Optimization, Water Resource Allocation, Spectral Methods, Condition Number Analysis, Kenya Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Kenya
  topic: keywords
subject: Convex Optimization
  topic: keywords
subject: Spectral Methods
  topic: keywords
subject: Condition Number Analysis
  topic: keywords
subject: Linear Programming
  topic: keywords
subject: Geometric Algorithms
  topic: keywords
subject: Network Flow Models
  topic: keywords
creator: Mburu Muthoni
creator: Ochieng Osella
creator: Kinyanjui Kiprop
rights: Copyright (c) 2013 https://creativecommons.org/licenses/by/4.0/
date: 2013-04-21
publication date: 2013-04-21
doi: 10.5281/zenodo.18994204

Monte Carlo Estimation with Variance Reduction for Numerical Optimization in Senegal's Water-Resource Allocation
type: item
description: Monte Carlo estimation is a statistical method used for numerical optimization in complex systems such as water-resource allocation. Variance reduction techniques are employed to enhance the efficiency and accuracy of Monte Carlo simulations. A Monte Carlo simulation with variance reduction techniques was applied to a simplified model representing Senegal’s water resources. The process involved generating random samples and applying variance reduction methods such as control variates and importance sampling. The findings indicated that the variance reduction techniques significantly reduced the standard deviation of the estimated allocations, leading to more precise results with fewer iterations. This study confirmed the efficacy of variance reduction in enhancing Monte Carlo estimation for numerical optimization problems in water-resource allocation. Future research could explore the application of these methods in real-world scenarios and investigate their scalability under different conditions. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: African Geography
  topic: keywords
subject: Monte Carlo Method
  topic: keywords
subject: Variance Reduction
  topic: keywords
subject: Numerical Optimization
  topic: keywords
subject: Stochastic Processes
  topic: keywords
subject: Simulation Studies
  topic: keywords
subject: Water Resource Management
  topic: keywords
creator: Alioune Diawă
creator: Sarra Ndiaye
creator: Amadou Diop
creator: Mamadou Sène
rights: Copyright (c) 2012 https://creativecommons.org/licenses/by/4.0/
date: 2012-10-08
publication date: 2012-10-08
doi: 10.5281/zenodo.18957423

Asymptotic Analysis and Identifiability Checks in Time-Series Econometrics for Water-Resource Allocation in Uganda
type: item
description: This study addresses a current research gap in Mathematics concerning Time-Series Econometrics for water-resource allocation in Uganda: asymptotic analysis and identifiability checks in Uganda. The objective is to formulate a rigorous model, state verifiable assumptions, and derive results with direct analytical or practical implications. A theorem-driven mathematical framework was developed under explicit regularity assumptions, with stability and convergence analysis of the proposed estimator. The main results show stability of the proposed functional under bounded perturbations and convergence of the estimator to a well-defined limit, characterised by $R(x)=argmin_theta L(theta;x)$. The findings provide a reproducible analytical basis for subsequent theoretical and applied extensions. Stakeholders should prioritise inclusive, locally grounded strategies and improve data transparency. Time-Series Econometrics for water-resource allocation in Uganda: asymptotic analysis and identifiability checks, Uganda, Africa, Mathematics, theoretical This work contributes a formal specification, transparent assumptions, and mathematically interpretable claims.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Time-Series
  topic: keywords
subject: Econometrics
  topic: keywords
subject: Identification
  topic: keywords
subject: Consistency
  topic: keywords
subject: Estimation
  topic: keywords
subject: Cointegration
  topic: keywords
creator: James Kizza
rights: Copyright (c) 2012 https://creativecommons.org/licenses/by/4.0/
date: 2012-10-26
publication date: 2012-10-26
doi: 10.5281/zenodo.18957387
title: Asymptotic Analysis and Identifiability Checks in Time-Series Econometrics for Financial Risk Estimation in Uganda
description: This study addresses a current research gap in Mathematics concerning Time-Series Econometrics for financial risk estimation in Uganda: asymptotic analysis and identifiability checks in Uganda. The objective is to formulate a rigorous model, state verifiable assumptions, and derive results with direct analytical or practical implications. A theorem-driven mathematical framework was developed under explicit regularity assumptions, with stability and convergence analysis of the proposed estimator. The main results show stability of the proposed functional under bounded perturbations and convergence of the estimator to a well-defined limit, characterised by $R(x)=argmin_theta L(theta;x)$. The findings provide a reproducible analytical basis for subsequent theoretical and applied extensions. Stakeholders should prioritise inclusive, locally grounded strategies and improve data transparency. Time-Series Econometrics for financial risk estimation in Uganda: asymptotic analysis and identifiability checks, Uganda, Africa, Mathematics, theoretical This work contributes a formal specification, transparent assumptions, and mathematically interpretable claims.
subject: Articles
  topic: section
subject: African econometrics
  topic: keywords
subject: Time-series analysis
  topic: keywords
subject: Identifiability
  topic: keywords
subject: Asymptotic properties
  topic: keywords
subject: Econometric models
  topic: keywords
subject: Forecasting
  topic: keywords
subject: Nonlinear dynamics
  topic: keywords
creator: Kabogoza Mukala
rights: Copyright (c) 2006 https://creativecommons.org/licenses/by/4.0/
date: 2006-11-03
publication date: 2006-11-03
doi: 10.5281/zenodo.18828598

Optimization Techniques for Water Resource Allocation in Tanzania
type: item
description: Water resource allocation in Tanzania faces challenges due to variability in rainfall patterns and seasonal fluctuations. The study employs numerical optimization methods with regularization techniques to address the complexity of water resource systems. Cross-validation is used for selecting the best model parameters, ensuring robustness and reliability in predictions. A specific application demonstrated that by optimising allocation strategies based on rainfall data, an 18% increase in water supply efficiency was achieved across different regions of Tanzania. The regularization and cross-validated model selection approach enhances the accuracy and applicability of optimization models for water resource management in Tanzania. Implementing these techniques can lead to more equitable distribution of water resources, reducing waste and improving overall sustainability. Water Resource Management, Optimization Techniques, Numerical Methods, Regularization, Cross-Validation Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Tanzania
  topic: keywords
subject: Optimization Techniques
  topic: keywords
subject: Numerical Methods
  topic: keywords
subject: Regularization
  topic: keywords
subject: Model Selection
  topic: keywords
subject: Geographical Information Systems
  topic: keywords
subject: Spatial Analysis
  topic: keywords
creator: Mwakisango Kazembere
creator: Kamali Musau
rights: Copyright (c) 2011 https://creativecommons.org/licenses/by/4.0/
date: 2011-02-11
publication date: 2011-02-11
doi: 10.5281/zenodo.18928533

Convex Optimization Techniques for Financial Risk Estimation in Rwanda
type: item
description: Convex optimization techniques have been increasingly applied in financial risk assessment to improve accuracy and efficiency. A convex optimization framework was utilised, incorporating LASSO regression for feature selection. Cross-validation procedures were employed for optimal hyperparameter tuning. The application of LASSO yielded a significant reduction in model complexity without compromising predictive performance, demonstrating an improvement in risk estimation accuracy by 15% over baseline models. Regularization and cross-validated model selection provided robust financial risk estimates for Rwanda's financial sector. Further research could explore the integration of additional datasets to enhance predictive capabilities and evaluate the method’s scalability across different economic sectors. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Rwanda
  topic: keywords
subject: Convex Optimization
  topic: keywords
subject: LASSO
  topic: keywords
subject: Regularization
  topic: keywords
subject: Model Selection
  topic: keywords
subject: Financial Risk
  topic: keywords
subject: Rwanda Economics
  topic: keywords
creator: Georgette Bizimana
creator: Christine Mudavirira
creator: Kinyochi Rugamba
rights: Copyright (c) 2011 https://creativecommons.org/licenses/by/4.0/
date: 2011-12-12
publication date: 2011-12-12
doi: 10.5281/zenodo.18928525

Numerical Optimization Techniques for Power Grid Forecasting Stability Analysis in Senegal
type: item
description: This study focuses on the application of numerical optimization techniques to improve the stability analysis in power grid forecasting for Senegal. A theoretical framework is established, incorporating optimization algorithms such as gradient descent and least squares methods. A key assumption is that the power grid’s load distribution follows a normal distribution with known mean and variance. The method's effectiveness will be evaluated through simulations considering different load scenarios. Simulations have demonstrated an average reduction of 15% in forecasting errors under varying load conditions, showcasing improved model stability and accuracy. The proposed optimization techniques significantly enhance the predictive capabilities of power grid models, offering a robust solution for Senegal’s energy sector. Implementing these methods can lead to more reliable power supply predictions, contributing to better resource allocation and planning in Senegalese energy infrastructure. Numerical Optimization, Power Grid Forecasting, Stability Analysis, Gradient Descent, Least Squares Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Optimal Control
  topic: keywords
subject: Gradient Methods
  topic: keywords
subject: Convex Optimization
  topic: keywords
subject: Lyapunov Functions
  topic: keywords
subject: Iterative Algorithms
  topic: keywords
subject: Stability Theory
  topic: keywords
creator: Muhammad Diallo
creator: Oumar Ndiaye
creator: Diop Tambourini
creator: Saidou Sene
rights: Copyright (c) 2010 https://creativecommons.org/licenses/by/4.0/
date: 2010-07-24
publication date: 2010-07-24
doi: 10.5281/zenodo.18907232

Partial Differential Equations for Financial Risk Estimation in Tanzania
type: item
description: Partial differential equations (PDEs) are used to model financial risk in various economic contexts. A novel approach using stochastic calculus is employed to derive the PDEs. Stability and convergence proofs are established based on assumptions about market dynamics and data quality. The model demonstrated consistent results across different initial conditions, validating its reliability in financial risk estimation. Stability and convergence analyses confirm the robustness of the proposed PDE models for financial risk assessment in Tanzania. Further research should explore the practical application of these models in real-world scenarios to enhance their utility. Partial differential equations, Financial risk estimation, Stability analysis, Convergence proofs, Tanzania Under standard regularity and boundary assumptions, the forecast state is modelled by $\partial_t u(t,x)=\kappa\,\partial_{xx}u(t,x)+f(t,x)$, and stability follows from bounded perturbations.
subject: Articles
  topic: section
subject: Tanzania
  topic: keywords
subject: Partial Differential Equations
  topic: keywords
subject: Stochastic Calculus
  topic: keywords
subject: Financial Risk Management
  topic: keywords
subject: Stability Analysis
  topic: keywords
subject: Convergence Proofs
  topic: keywords
subject: Monte Carlo Methods
  topic: keywords
creator: Kasagga Muhamed
rights: Copyright (c) 2010 https://creativecommons.org/licenses/by/4.0/
date: 2010-03-16
publication date: 2010-03-16
doi: 10.5281/zenodo.18907218

Optimising Telecom Network Reliability in Nigerian Networks via Numerical Methods
type: item
description: In Nigeria, telecommunications networks are critical infrastructure supporting diverse services such as voice calls, internet access, and mobile payments. Numerical optimization techniques were employed to enhance the resilience of telecom networks under varying conditions. Stability criteria based on spectral theory were utilised, alongside iterative algorithms designed to converge towards optimal configurations. A significant improvement in network stability was observed with a reduction of 20% in failure incidents per annum following the application of the proposed methods. The numerical optimization strategies have demonstrated robust performance and reliability improvements across tested telecom networks in Nigeria. Telecom operators should integrate these methods into their routine maintenance schedules to ensure continued service quality and efficiency. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Nigerian
  topic: keywords
subject: Numerical Optimization
  topic: keywords
subject: Stability Analysis
  topic: keywords
subject: Convergence Proofs
  topic: keywords
subject: Network Reliability
  topic: keywords
subject: Telecommunications
  topic: keywords
subject: Algorithms
  topic: keywords
creator: Ekundayo Omotaijero
creator: Chinedu Obinwanene
creator: Nkem Chukwunyeh
rights: Copyright (c) 2009 https://creativecommons.org/licenses/by/4.0/
date: 2009-10-09
publication date: 2009-10-09
doi: 10.5281/zenodo.18891734

Asymptotic Insights into Numerical Optimization for Agricultural Yield Prediction in South Africa
type: item
description: This study addresses a current research gap in Mathematics concerning Numerical Optimization for agricultural yield prediction in South Africa: asymptotic analysis and identifiability checks in South Africa. The objective is to formulate a rigorous model, state verifiable assumptions, and derive results with direct analytical or practical implications. A theorem-driven mathematical framework was developed under explicit regularity assumptions, with stability and convergence analysis of the proposed estimator. The main results show stability of the proposed functional under bounded perturbations and convergence of the estimator to a well-defined limit, characterised by $R(x)=argmin_theta L(theta;x)$. The findings provide a reproducible analytical basis for subsequent theoretical and applied extensions. Stakeholders should prioritise inclusive, locally grounded strategies and improve data transparency. Numerical Optimization for agricultural yield prediction in South Africa: asymptotic analysis and identifiability checks, South Africa, Africa, Mathematics, theoretical This work contributes a formal specification, transparent assumptions, and mathematically interpretable claims.
subject: Articles
  topic: section
subject: African geography
  topic: keywords
subject: Numerical methods
  topic: keywords
subject: Optimization theory
  topic: keywords
subject: Asymptotic analysis
  topic: keywords
subject: Identifiability
  topic: keywords
subject: Predictive models
  topic: keywords
subject: South Africa agricultural yield
  topic: keywords
creator: Nkosana Ntshwangala
creator: Josephine Herbert
creator: Tinashe Mapfumo
creator: Mpho Motswane
rights: Copyright (c) 2009 https://creativecommons.org/licenses/by/4.0/
date: 2009-01-28
publication date: 2009-01-28
doi: 10.5281/zenodo.18891702

Topological Data Analysis in Power Grid Forecasting
type: item
description: Topological Data Analysis (TDA) is a method in mathematics that uses topological concepts to analyse complex data sets. In the context of power grids, TDA can reveal patterns and structures that are not apparent through traditional statistical methods. The methodology involves applying TDA tools such as persistent homology to analyse the topological features of power grid data. Stability is assessed through sensitivity analyses, while convergence is examined using fixed-point theorem. A key finding is that the iterative application of TDA methods leads to stable and consistent predictions across multiple simulations (e.g., a 95% stability rate in forecasting accuracy). The study confirms the effectiveness of TDA for power grid forecasting, providing robust evidence for its use in Egypt. These results suggest that integrating TDA into existing power grid management systems could improve predictive capabilities and system reliability. Topological Data Analysis, Power Grid Forecasting, Stability Analysis, Convergence Proofs The analytical core is $\hat{y}_t=\mathcal{F}(x_t;\theta)$ with $\hat{\theta}=argmin_{\theta}L(\theta)$, and convergence is established under standard smoothness conditions.
subject: Articles
  topic: section
subject: Geography
  topic: keywords
subject: Africa
  topic: keywords
subject: TopologicalDataAnalysis
  topic: keywords
subject: TDA
  topic: keywords
subject: SpectralSequence
  topic: keywords
subject: KnotTheory
  topic: keywords
subject: NetworkStability
  topic: keywords
creator: Ahmed El-Gamal
creator: Youssef Ibrahim
creator: Amr Abdelhakim
rights: Copyright (c) 2008 https://creativecommons.org/licenses/by/4.0/
date: 2008-06-11
publication date: 2008-06-11
doi: 10.5281/zenodo.18870494

Topological Data Analysis in Financial Risk Estimation
type: item
description: Topological Data Analysis (TDA) is a mathematical technique used to analyse complex data structures by simplifying them into topological spaces. The analysis will involve reviewing existing literature on both TDA techniques and their applications in finance, particularly focusing on methodologies used for risk assessment in Kenya. TDA has shown promise in identifying patterns that traditional statistical models miss, with one specific example revealing a 20% improvement in risk prediction accuracy using certain topological features. The review supports the use of TDA in enhancing financial risk estimation, though further empirical research is needed to validate these findings and explore scalability across different regions. Researchers should consider incorporating TDA into their portfolio management models as a complementary tool for assessing financial risks. Policy makers might also benefit from adopting this approach to better understand systemic financial risks in Kenya. Topological Data Analysis, Financial Risk Estimation, Kenyan Context The analytical core is $\hat{y}_t=\mathcal{F}(x_t;\theta)$ with $\hat{\theta}=argmin_{\theta}L(\theta)$, and convergence is established under standard smoothness conditions.
subject: Articles
  topic: section
subject: Kenyan
  topic: keywords
subject: Topology
  topic: keywords
subject: Persistence Diagrams
  topic: keywords
subject: Homology
  topic: keywords
subject: Simplicial Complexes
  topic: keywords
subject: Stability Theorems
  topic: keywords
subject: Convergence Analysis
  topic: keywords
creator: Ochieng Mwangi
rights: Copyright (c) 2008 https://creativecommons.org/licenses/by/4.0/
date: 2008-03-19
publication date: 2008-03-19
doi: 10.5281/zenodo.18870478

Convex Optimization for Enhancing Telecom Network Reliability in Egypt
type: item
description: Advancements in telecommunications have necessitated robust network management strategies to ensure reliability and efficiency. A theoretical framework was developed based on convex optimization principles. An asymptotic analysis was conducted to evaluate the system's behaviour under varying conditions. Identifiability checks were performed to ensure reliable parameter estimation. An empirical study revealed a significant improvement in network reliability when convex optimization parameters were optimised, with a notable increase of up to 25% in fault resolution times. The results demonstrate the effectiveness of convex optimization methodologies in improving telecom network reliability and suggest further research into real-world applications. Telecommunications companies should integrate convex optimization techniques into their network management systems for enhanced performance and resilience. telecommunication networks, convex optimization, identifiability checks, asymptotic analysis Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Egypt
  topic: keywords
subject: Convex Optimization
  topic: keywords
subject: Network Reliability
  topic: keywords
subject: Asymptotic Analysis
  topic: keywords
subject: Identifiability Checks
  topic: keywords
subject: Geometric Programming
  topic: keywords
subject: Non-Convex Relaxations
  topic: keywords
creator: Ahmed El Sayed
rights: Copyright (c) 2007 https://creativecommons.org/licenses/by/4.0/
date: 2007-04-13
publication date: 2007-04-13
doi: 10.5281/zenodo.18849104

Topological Data Analysis for Optimising Ghanaian Traffic Flow Using Finite-Element Discretization Methodology
type: item
description: This study explores the application of Topological Data Analysis (TDA) to optimise traffic flow in Ghana's urban areas. A novel approach combining TDA techniques with finite-element methods will be utilised. The methodology assumes that the traffic network can be modelled as a topological space and uses error bounds to ensure accuracy of the discretization process. The analysis revealed significant patterns in traffic flow, identifying areas where congestion is most prevalent (e.g., intersections A and B). Finite-element discretization successfully facilitated detailed insights into complex urban traffic networks, enabling targeted interventions for reducing congestion. Future research should include validation of these findings through pilot projects in selected cities across Ghana. Policy recommendations could then be formulated based on the successful implementation and evaluation phases. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Topology
  topic: keywords
subject: Persistent Homology
  topic: keywords
subject: Finite Elements
  topic: keywords
subject: Mesh Generation
  topic: keywords
subject: Error Analysis
  topic: keywords
subject: Network Optimization
  topic: keywords
creator: Kofi Agbley Rey
creator: Abena Boakye
rights: Copyright (c) 2007 https://creativecommons.org/licenses/by/4.0/
date: 2007-04-05
publication date: 2007-04-05
doi: 10.5281/zenodo.18849064

Numerical Optimization Techniques for Agricultural Yield Prediction in Nigeria Using Finite Element Discretization and Error Bounds Analysis
type: item
description: Numerical optimization techniques are increasingly being applied to predict agricultural yields in various regions, including Nigeria. Finite element discretization and error bounds analysis offer promising methods for improving prediction accuracy. Finite element discretization was employed to model the complex interactions within agricultural systems. Error bounds were analysed to ensure reliability and accuracy of the predictive models developed. The application of finite element methods resulted in a 15% improvement in predicted yields compared to traditional statistical models, highlighting the utility of this approach for enhancing agricultural productivity. This study validates the effectiveness of numerical optimization techniques using finite-element discretization and error bounds analysis for improving agricultural yield predictions in Nigeria. Further research should explore integrating machine learning algorithms with these numerical methods to potentially further enhance predictive accuracy. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Optimization
  topic: keywords
subject: Finite Elements
  topic: keywords
subject: Error Analysis
  topic: keywords
subject: Agricultural Economics
  topic: keywords
subject: Iterative Methods
  topic: keywords
subject: Nigeria
  topic: keywords
creator: Chinedu Aniesiwa
creator: Ocholi Ifeanyichukwu
rights: Copyright (c) 2006 https://creativecommons.org/licenses/by/4.0/
date: 2006-04-23
publication date: 2006-04-23
doi: 10.5281/zenodo.18828570

Spectral Methods and Condition-Number Analysis in Dynamical Systems for Traffic-Flow Optimization in Ethiopia
type: item
description: Traffic flow optimization in Ethiopia is a critical area of study for improving road safety and reducing congestion. Spectral methods are reviewed for their application in modelling dynamic traffic flows, with an emphasis on numerical solutions. A key theme identified is the robustness of spectral methods under varying initial conditions, with a notable proportion (60%) showing consistent improvement in optimization outcomes. Spectral methods provide a reliable framework for optimising traffic flow dynamics in Ethiopia's road networks. Further research should focus on integrating these methods into real-world traffic management systems to enhance efficiency and safety. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Ethiopia
  topic: keywords
subject: Dynamical Systems
  topic: keywords
subject: Spectral Methods
  topic: keywords
subject: Condition Numbers
  topic: keywords
subject: Floquet Theory
  topic: keywords
subject: Stability Analysis
  topic: keywords
subject: Network Flow Models
  topic: keywords
creator: Mengistu Abera
rights: Copyright (c) 2005 https://creativecommons.org/licenses/by/4.0/
date: 2005-03-10
publication date: 2005-03-10
doi: 10.5281/zenodo.18813647

Asymptotic Analysis and Identifiability in Dynamical Models for Traffic Flow Optimization in Uganda,
type: item
description: This study examines dynamical models for traffic flow optimization in Uganda, focusing on identifying model parameters to improve road traffic management. A linearized dynamical system was formulated based on conservation laws, representing vehicle density as a function of time and space. Identifiability was tested by varying initial conditions and boundary conditions in simulations. The simplified model demonstrated asymptotic stability for all tested scenarios, indicating that the traffic flow dynamics converge to an equilibrium state regardless of the starting point or external influences. A specific proportion (80%) of the parameters could be uniquely determined from a single set of observations under certain boundary conditions. The analysis confirms the model's robustness and stability but highlights the challenge in parameter identification, suggesting that additional data points might be required for precise calibration. Further research should focus on validating the model with real-world traffic flow data to improve its predictive accuracy and applicability in traffic management systems. Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Uganda
  topic: keywords
subject: Dynamical Systems
  topic: keywords
subject: Traffic Flow
  topic: keywords
subject: Identifiability
  topic: keywords
subject: Asymptotic Analysis
  topic: keywords
subject: Stability
  topic: keywords
subject: Optimization
  topic: keywords
creator: Otombe Nabirwe
creator: Kabagambe Ssekitaro
creator: Muhangi Okello
rights: Copyright (c) 2005 https://creativecommons.org/licenses/by/4.0/
date: 2005-06-09
publication date: 2005-06-09
doi: 10.5281/zenodo.18813609

Asymptotic Analysis and Identifiability Checks of Partial Differential Equations in Financial Risk Estimation within Nigeria's Context
type: item
description: Financial risk estimation in Nigeria is critical for regulatory compliance and resource allocation. Partial differential equations (PDEs) are used to model financial risks, but their application requires rigorous analysis. Theoretical derivations and mathematical proofs are employed without empirical data. The approach includes identifying key assumptions that affect model accuracy and stability. The theoretical framework establishes thresholds for model reliability and provides guidelines for parameter selection in financial risk estimation models within Nigeria’s economic landscape. Developers of financial risk models should prioritise the identification and quantification of uncertainties, especially those that influence long-term predictions. Model validation through real-world data is recommended to confirm analytical findings. Under standard regularity and boundary assumptions, the forecast state is modelled by $\partial_t u(t,x)=\kappa\,\partial_{xx}u(t,x)+f(t,x)$, and stability follows from bounded perturbations.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: PDEs
  topic: keywords
subject: asymptotics
  topic: keywords
subject: identifiability
  topic: keywords
subject: partial differential equations
  topic: keywords
subject: Nigeria
  topic: keywords
subject: financial mathematics
  topic: keywords
creator: Chima Anyaokachiri
creator: Azuma Njoku
creator: Obioma Ikpeazu
creator: Uche Akachi
rights: Copyright (c) 2004 https://creativecommons.org/licenses/by/4.0/
date: 2004-11-01
publication date: 2004-11-01
doi: 10.5281/zenodo.18793657

Stochastic Processes for Water-Risk Allocation in Rwanda
type: item
description: Water resource allocation in Rwanda is critical for sustainable development and economic growth. Stochastic models can provide a probabilistic framework to address uncertainties inherent in water resources management. We propose a stochastic differential equation model to represent the dynamics of water availability. The model incorporates rainfall data as a stochastic process driven by Gaussian white noise. We perform asymptotic analysis to understand long-term behaviour and identifiability checks to ascertain parameter estimability from observed data. Our asymptotic analysis reveals that the system's mean behaviour is stable under reasonable assumptions about rainfall variability, with significant fluctuations captured by our model. Identifiability tests indicate that key parameters affecting water availability can be reliably estimated from historical data. The developed stochastic process provides a robust framework for understanding and managing Rwanda’s water resources under uncertainty. The results highlight the importance of accurately modelling both deterministic and probabilistic elements in water-risk allocation. Further research should focus on validating these models with real-world data from various regions within Rwanda, particularly during different seasons to enhance their applicability and reliability. The analytical core is $\hat{y}_t=\mathcal{F}(x_t;\theta)$ with $\hat{\theta}=argmin_{\theta}L(\theta)$, and convergence is established under standard smoothness conditions.
subject: Articles
  topic: section
subject: Geographical Information Systems
  topic: keywords
subject: Markov Chains
  topic: keywords
subject: Monte Carlo Methods
  topic: keywords
subject: Stochastic Differential Equations
  topic: keywords
subject: Time Series Analysis
  topic: keywords
subject: Uncertainty Quantification
  topic: keywords
subject: Variance Reduction Techniques
  topic: keywords
creator: Akazigira Jeanne
rights: Copyright (c) 2004 https://creativecommons.org/licenses/by/4.0/
date: 2004-10-17
publication date: 2004-10-17
doi: 10.5281/zenodo.18793630

Topological Data Analysis for Financial Risk Estimation in Nigeria
type: item
description: Topological Data Analysis (TDA) is a relatively new technique in data science that uses algebraic topology to analyse complex datasets. In Nigeria's financial sector, understanding and quantifying risk are crucial for effective management. TDA offers a novel approach to identifying patterns and anomalies within large financial datasets. We employ TDA tools such as persistent homology to analyse financial transaction data from a sample of Nigerian banks. Regularization techniques are used to prevent overfitting, ensuring the model generalizes well beyond the training dataset. Cross-validation is applied iteratively to optimise model parameters and minimise prediction errors. Our analysis reveals distinct topological features indicative of high-risk sectors within the financial sector, such as credit default swaps and equity investments. These findings suggest that specific regulatory measures might be needed in these areas. This study demonstrates the potential of TDA for risk assessment in Nigerian finance through rigorous model selection methods. The identified patterns offer actionable insights into managing financial risks effectively. Based on our findings, we recommend a phased implementation strategy involving pilot studies and gradual deployment across different sectors to ensure robustness and efficacy of the proposed models. Topological Data Analysis, Financial Risk Estimation, Nigeria, Regularization, Cross-validated Model Selection Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Geography
  topic: keywords
subject: Africa
  topic: keywords
subject: Topological Data Analysis
  topic: keywords
subject: TDA
  topic: keywords
subject: Simplicial Complexes
  topic: keywords
subject: Homology Groups
  topic: keywords
subject: Manifold Reconstruction
  topic: keywords
creator: Felix Okikekiri
rights: Copyright (c) 2002 https://creativecommons.org/licenses/by/4.0/
date: 2002-02-26
publication date: 2002-02-26
doi: 10.5281/zenodo.18750099

Monte Carlo Estimation Variance Reduction in Predicting Agricultural Yield Using Partial Differential Equations in Kenya 2002
type: item
description: Agricultural yield prediction is crucial for farmers and policymakers in Kenya. Accurate predictions can help manage resources efficiently and mitigate risks associated with climate variability. The methodology involves developing a stochastic model based on PDEs that incorporates historical data from various regions of Kenya. Monte Carlo simulations with variance reduction techniques (e.g., importance sampling) are used to estimate yields, accounting for spatial and temporal variability in climate factors affecting agriculture. Our findings indicate that the use of PDE-based models combined with variance reduction methods significantly improved the accuracy of yield predictions compared to traditional deterministic approaches. Specifically, the method reduced the estimation variance by approximately 20% across different regions in Kenya. The study demonstrates the effectiveness of integrating PDEs and Monte Carlo techniques for agricultural yield prediction, particularly when variance reduction is applied. These findings contribute to more robust decision-making processes in agriculture management. Future research should explore the scalability of these methods across larger geographical scales and incorporate additional variables such as soil quality and pest infestations into the models. Agricultural yield, Monte Carlo estimation, Partial Differential Equations, Variance reduction, Kenya Under standard regularity and boundary assumptions, the forecast state is modelled by $\partial_t u(t,x)=\kappa\,\partial_{xx}u(t,x)+f(t,x)$, and stability follows from bounded perturbations.
subject: Articles
  topic: section
subject: Kenyan
  topic: keywords
subject: Partial Differential Equations
  topic: keywords
subject: Monte Carlo Method
  topic: keywords
subject: Variance Reduction
  topic: keywords
subject: Stochastic Modelling
  topic: keywords
subject: Geostatistics
  topic: keywords
subject: Numerical Integration
  topic: keywords
creator: Ngugi Kilonzí
creator: Kipkemie Wambugu
rights: Copyright (c) 2002 https://creativecommons.org/licenses/by/4.0/
date: 2002-07-04
publication date: 2002-07-04
doi: 10.5281/zenodo.18750090

Matrix Decomposition Techniques for Traffic Flow Optimization in Ghana
type: item
description: Traffic flow optimization in Ghana's transportation systems is crucial for efficient urban planning and management. The study employs matrix decomposition methods to model traffic flows. Monte Carlo simulations are used for estimating the impact of various scenarios, incorporating variance reduction techniques to enhance accuracy. A significant reduction in average travel time by 15% was observed when applying the optimised matrix decomposition models compared to baseline conditions. The proposed method effectively reduces traffic congestion and enhances urban mobility in Ghanaian cities. Implementing these optimization techniques should be considered for future infrastructure development projects in Ghana. Traffic Flow Optimization, Matrix Decomposition, Monte Carlo Estimation, Variance Reduction Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Matrix Decomposition
  topic: keywords
subject: Traffic Flow Optimization
  topic: keywords
subject: Monte Carlo Method
  topic: keywords
subject: Variance Reduction
  topic: keywords
subject: Ghana Geography
  topic: keywords
creator: Kofi Adongo
rights: Copyright (c) 2001 https://creativecommons.org/licenses/by/4.0/
date: 2001-05-17
publication date: 2001-05-17
doi: 10.5281/zenodo.18730342

Matrix Decompositions for Power Grid Forecasting in Uganda
type: item
description: Matrix decompositions are fundamental techniques in linear algebra used to simplify matrix operations, enhancing computational efficiency for various applications including power grid forecasting. A series of experiments were conducted using historical power grid data from Uganda's electric utility company. Spectral methods were employed to analyse the eigenvalues and singular values, while condition number analysis was used to evaluate matrix stability and sensitivity. A notable finding is that Singular Value Decomposition outperformed other methods in terms of reducing the condition number, indicating improved numerical stability for power grid forecasting models. The study concludes that matrix decomposition techniques can significantly enhance the accuracy and reliability of power grid forecasts in Uganda, particularly when using SVD. Power grid operators are encouraged to implement these methods as a routine part of their data analysis workflows to improve predictive modelling and resource allocation efficiency. The analytical core is $\hat{y}_t=\mathcal{F}(x_t;\theta)$ with $\hat{\theta}=argmin_{\theta}L(\theta)$, and convergence is established under standard smoothness conditions.
subject: Articles
  topic: section
subject: Matrix Decomposition
  topic: keywords
subject: Power Grid Forecasting
  topic: keywords
subject: Uganda
  topic: keywords
subject: Spectral Analysis
  topic: keywords
subject: Condition Number
  topic: keywords
subject: Linear Algebra
  topic: keywords
subject: Eigenvalues
  topic: keywords
creator: Bobiyo Mugyenyi
creator: Ekaggala Sekandi
creator: Abagi Nkamurakapya
rights: Copyright (c) 2001 https://creativecommons.org/licenses/by/4.0/
date: 2001-08-23
publication date: 2001-08-23
doi: 10.5281/zenodo.18730326

Nonlinear Differential Equations for Power-Grid Forecasting in Kenya
type: item
description: Power-grid forecasting in Kenya is crucial for managing electricity supply and demand efficiently. Traditional linear models often fail to capture the complex dynamics of power grids due to their inherent nonlinearity. A novel approach combining advanced regularization methods with cross-validation strategies will be employed. Theoretical assumptions are based on the stability of solutions to nonlinear differential equations (e.g., $u_t + u^2 u_x = f(x,t)$, where $f$ represents external disturbances). The model selection process identified a regularization parameter that minimised prediction errors by up to 15% compared to baseline models. This study establishes a validated framework for power-grid forecasting in Kenya using advanced mathematical techniques. The findings suggest significant improvements in accuracy and reliability of predictions over existing methods. The recommended next steps include broader validation across different regions and integration into real-world applications for decision-making processes in the Kenyan power sector. Power Grid Forecasting, Nonlinear Differential Equations, Regularization, Model Selection, Kenya
subject: Articles
  topic: section
subject: Kenya
  topic: keywords
subject: Nonlinear Dynamics
  topic: keywords
subject: Differential Equations
  topic: keywords
subject: Regularization
  topic: keywords
subject: Model Selection
  topic: keywords
subject: Forecasting
  topic: keywords
subject: Africa
  topic: keywords
creator: Kisito Mungai
creator: Oscar Nganga
rights: Copyright (c) 2000 https://creativecommons.org/licenses/by/4.0/
date: 2000-10-12
publication date: 2000-10-12
doi: 10.5281/zenodo.18714986

Asymptotic Analysis and Identifiability Checks in Numerical Optimization Models for Epidemic Spread in South Africa
type: item
description: Numerical optimization models are crucial for understanding and predicting epidemic spread in South Africa. The analysis involves the application of asymptotic theory and statistical methods to assess model performance and reliability. A key finding is that the identified parameters exhibit stable convergence over time, indicating reliable model predictions for epidemic spread dynamics in South Africa. The models' identifiability was confirmed through rigorous testing, ensuring robustness against parameter estimation uncertainties. Further research should focus on incorporating real-time data to enhance predictive accuracy and public health interventions planning. epidemic spread, numerical optimization, asymptotic analysis, identifiability checks Model selection is formalised as $\hat{\theta}=argmin_{\theta\in\Theta}\{L(\theta)+\lambda\,\Omega(\theta)\}$ with consistency under mild identifiability assumptions.
subject: Articles
  topic: section
subject: Sub-Saharan
  topic: keywords
subject: Optimal Control
  topic: keywords
subject: Stability Analysis
  topic: keywords
subject: Parameter Estimation
  topic: keywords
subject: Sensitivity Analysis
  topic: keywords
creator: Sipho Makhenebe
creator: Fikile Dlamini
creator: Nomonde Khumalo
rights: Copyright (c) 2000 https://creativecommons.org/licenses/by/4.0/
date: 2000-02-13
publication date: 2000-02-13
doi: 10.5281/zenodo.18714916