117 citations · 805 across the 109 of their papers we have counts for
6 papers · 1 filter
Predicting Higher Education Throughput in South Africa Using a Tree-Based Ensemble Technique
Rendani Mbuvha, Patience Zondo, Aluwani Mauda +1
We use gradient boosting machines and logistic regression to predict academic throughput at a South African university. The results highlight the significant influence of socio-eco…
Common Mistakes when Applying Computational Intelligence and Machine Learning to Stock Market modelling
E. Hurwitz, T. Marwala
For a number of reasons, computational intelligence and machine learning methods have been largely dismissed by the professional community. The reasons for this are numerous and va…
Estimation of Missing Data Using Computational Intelligence and Decision Trees
George Ssali, Tshilidzi Marwala
This paper introduces a novel paradigm to impute missing data that combines a decision tree with an auto-associative neural network (AANN) based model and a principal component ana…
Finite Element Model Updating Using Bayesian Approach
Tshilidzi Marwala, Lungile Mdlazi, Sibusiso Sibisi
This paper compares the Maximum-likelihood method and Bayesian method for finite element model updating. The Maximum-likelihood method was implemented using genetic algorithm while…
An Integrated Human-Computer System for Controlling Interstate Disputes
Tshilidzi Marwala, Monica Lagazio, Thando Tettey
In this paper we develop a scientific approach to control inter-country conflict. This system makes use of a neural network and a feedback control approach. It was found that by co…
Missing Data: A Comparison of Neural Network and Expectation Maximisation Techniques
Fulufhelo V. Nelwamondo, Shakir Mohamed, Tshilidzi Marwala
The estimation of missing input vector elements in real time processing applications requires a system that possesses the knowledge of certain characteristics such as correlations…