Forecasting Monthly Rainfall using Neural Networks – A Case of Mbombela

Researcher: Naledi Mogane, University of the Witwatersrand, Johannesburg
Supervisors: Dr Ritesh Ajoodha and Dr Ashwini Jadhav, University of the Witwatersrand, Johannesburg

Forecasting rainfall is a critical technique for preventing climate-related risks and ensuring long-term management. This study presents the application of neural networks to predict rainfall. To accomplish this, we used a Long Short-Term Memory (LSTM), a type of recurrent neural network (RNN), and we compared the results with the Autoregressive Integrated Moving Average (ARIMA) model. The statistical effectiveness of the models reveals that the LSTM model can predict monthly rainfall in the catchment with reasonable accuracy.


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Don’t be caught unprepared!

Researcher: Kudzai Sibanda, University of the Witwatersrand, Johannesburg
Supervisor: Dr Tapiwa Gundu, Sol Plaatje University

In a digital world where we put our lives on our gadgets, we deserve assurance that our data is safe from any external entities. We want our gadgets to notify us of any threat to our privacy and a way to deal with these threats. We need intrusion detection systems.


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Electronic Discharge summary completion: assessing the field completion rate at the Chris Hani Baragwanath Academic Hospital as a surrogate marker of end user acceptance

Researcher: Palesa Khoza, University of the Witwatersrand, Johannesburg
Supervisor: TBA

This study reviewed 18128 discharge records issued in the department of surgery at Chris Hani Baragwanath Academic Hospital and examined 28 fields to assess the field completion rate of electronic discharge summaries.  To evaluate the quality of information in electronic discharge summaries, a word count of three clinically significant fields was conducted.


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Measuring police response to public protest in South Africa

Researcher: Emma Smith, University of the Witwatersrand, Johannesburg
Supervisor: Prof. Rod Alence , University of the Witwatersrand, Johannesburg

South Africa experiences high levels of protest across various sectors. Police response to protests is varied and can lead to scenarios where excessive force is used on seemingly small or unthreatening protests.  This research report asks the following: Which protest characteristics increase the likelihood of a protest being met with police repression?


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Demand and Supply Variables Leads to the Worst BTC Return Predictions

Researcher: Andre Kleynhans, University of Pretoria
Supervisor: Prof. Ritesh Ajoodha, University of the Witwatersrand, Johannesburg

Bitcoin (BTC) return prediction is a fairly difficult task. Past literature focuses on models to ensure the best return prediction. Little focus is on discovering the best features for bitcoin return prediction.  This research report attempts to bridge this gap. This research report finds the most important features from commonly used features used in the literature.


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Analysis of risk factors that contribute to mortality due to cancer in South Africa

Researcher: Moloko Legodi, University of Limpopo
Supervisor: TBA

A report by World Health Organization support that cancer is the global health problem, responsible for roughly 10 million deaths in 2020. The goal of this research is to look at factors that may lead to death in people with cancer. The goals of this study is to (a) analyze the data using the Poisson regression model, Negative Binomial regression, and Zero Inflated Poisson to see which model best fit the data, and (b) look for factors that lead to death in cancer patients. Data from Statistics South Africa (StatsSA) on causes of death was analyzed, and the study looked at 22441 people who died from cancer as reported by the Department of Home Affairs in South Africa in 2015 (SA). Descriptive statistics and model fitting were used to analyze the data. The data was analyzed first using the Poisson regression model, then an detection of over dispersion in count variable Negative Binomial regression, and ZIP, where negative binomial was the best model to fit the data. The model fitted from Negative binomial revealed that the age group, place of death, province of death, and smoking status have a significant contribution on the number of cancer deaths at a 5\% significant level, while the variable gender was in significant to the model. Cancer patients should use nursery homes in the future so that they can be closely monitored while undergoing treatment. The country’s health department should strengthen cancer education for youth for the sake of the country’s cancer future state, as youth are the country’s future.


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Support vector regression is the best method in predicting volatility of Ethereum in the next two days

Researcher: Rambevha Vhukhudo, University of Venda
Supervisor: Dr Wilbert Chagwiza, University of the Witwatersrand, Johannesburg

Volatility is an essential factor to consider when one is trading or investing in cryptocurrency Ethereum.
Cryptocurrency as a digital currency in which transactions are verified and records make use of a decentralized system. This study focuses on forecasting the volatility of the price of Ethereum.


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Evidence from West Africa that Education Aid does not Promote Educational Development

Researcher: Nnaemeka Ohamadike, University of the Witwatersrand, Johannesburg
Supervisor: Dr Ekeminiabasi Eyita-Okon, University of the Witwatersrand, Johannesburg

This study ascertained whether education aid to West African countries facilitates educational development. This was undertaken given the increased aid to the region since the Millennium Declaration was signed; the shift in development policy at the new Millennium; and the inadequacy of literature on the subject matter in West Africa.  To do this, two research questions were formed:

What impact has education aid had on educational development?

What has been the state of education sectors in West Africa?


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Detecting potential genes that contribute towards development of mental health disorder: Schizophrenia

Researcher: Mutobvu Ronewa, University of Limpopo
Supervisor: TBA

Mental health problems encompass our overall well-being.  These are the most formidable problems than any other health condition and remain widely under-reported.  This study focuses on performing differential gene expression secondary analysis on Schizophrenia.  Schizophrenia is a mental health disorder that can be characterized by hallucinations, delusions, and abnormal social behavior (Xu et al., 2012).  RNA-seq is a technology that is used to study the complex disease associated with genes expression variations.


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