Summary
Overview
Work History
Education
Skills
Ai Machine Learning Projects
Websites
Publications Presentations
Workshops Conferences Summer Schools
Volunteer Experience
Certification
Accomplishments
References
Timeline
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SAMUEL WINBONO-MPAABA

Johannesburg

Summary

Dynamic Data Science Researcher with a proven track record at the University of Witwatersrand, proficient in Python and advanced statistical analysis to identify critical predictors in health data. Expertise in creating interactive visualizations and optimizing machine learning models enhances the ability to deliver impactful insights in biomedical research. Strong collaboration and problem-solving skills contribute to driving innovative solutions within interdisciplinary teams.

Overview

4
4
years of professional experience
1
1
Certification

Work History

Data Science Researcher

University of Witwatersrand
01.2024 - Current
  • The research project focused on investigating the potential of heart rate variability as a potential biomarker for dementia
  • Preprocessed the data by addressing missing values, one-hot encoded categorical variables, scaled features for model training and calculated the RR Interval feature from the baseline heart rate variable from the dataset
  • Implemented Recursive Feature Elimination (RFE) with cross-validation to identify key predictors and optimized models
  • Evaluated the key predictors using logistic regression, support vector machine, AdaBoost, perceptron, decision tree, random forest, gradient boosting, extra trees and XGboost
  • Fine-tuned the best-performing models using grid search
  • Utilized accuracy, roc-auc, precision, recall and F1-score as key performance metrics
  • Built interactive graphs and charts using Seaborn and Matplotlib to understand trends in data

Freelance Data Analyst & AI Developer

Self-employed
Johannesburg
01.2023 - Current
  • Implemented statistical techniques to predict outcomes for diverse business needs.
  • Conducted advanced statistical analysis utilizing SPSS.
  • Developed interactive dashboards and data reports using Python, Seaborn, Matplotlib, and SPSS.

National Service Personnel

University of Ghana Medical Centre Ltd
01.2022 - 01.2023
  • Assisted as a Biomedical Engineer in national service contributions
  • Designed a Medical Equipment Inventory Management Application (MEIMS) with Django and Tailwind CSS
  • Proposed the integration of AI-powered anomaly detection to predict medical equipment failures and develop an automated report generation system using GPT-based AI models

Research Associate

University of Ghana
01.2022 - 12.2022
  • Undergraduate dissertation focused on monitoring heart rate and oxygen saturation (SpO2) using wearable devices
  • Worked within a four-member engineering team to assess the feasibility of monitoring physiological signs using wearable devices
  • Designed and implemented a web application for clinicians to monitor real-time heart rate and SpO2 data from Xiaomi Mi Band 6 and Fitbit Versa 2
  • Utilized Figma for UI/UX design and developed the frontend with HTML, CSS, JavaScript and Bootstrap Backend integration using Python and the Django framework, with data storage managed in a PostgreSQL database

Remote Research Intern

Worcester Polytechnic Institute
01.2021 - 12.2021
  • Company Overview: Virtual Internship in biomedical engineering (VIBE) to refine my research capabilities and establish my professional identity
  • Worked with three colleagues on a Biomedical Engineering (BME) design challenge focused on 'Orthopedic wearable with infrared light for bone healing.'
  • 12 light-emitting diodes (LED) were simulated at 820 nm on Proteus, incorporating a resistance of 50 ohms and a voltage of 5 volts
  • Published a presentation video on YouTube explaining the 'Orthopedic wearable device integrating infrared light for bone healing stimulation' concept
  • Virtual Internship in biomedical engineering (VIBE) to refine my research capabilities and establish my professional identity

Education

Master of Science - Computer Science

University of The Witwatersrand
true
12-2025

Bachelor of Science - Biomedical Engineering

University of Ghana
Legon, Ghana
11-2022

Skills

  • Python
  • PyTorch
  • SQL
  • Django
  • HTML5
  • Javascript
  • Bootstrap
  • Excel
  • SPSS
  • Seaborn
  • Regression
  • Classification and Prediction
  • Data Analysis
  • Reinforcement Learning
  • Artificial Intelligence
  • Pandas
  • NumPy
  • Scikit-learn
  • Matplotlib
  • Git

Ai Machine Learning Projects

  • Reinforcement Learning for Decision-Making, Implemented Deep Q-Network (DQN) and Successive Representation Agents to optimize decision-making in simulated environments., Benjamin Rosman
  • Computer Vision for Image Classification, Developed deep learning models (CNNs) using TensorFlow and PyTorch for image classification tasks., Richard Klein
  • Brain Tumors Classification with Convolutional Neural Networks, Developed and trained a CNN model to classify brain tumors from medical images., Clint Van Alten
  • Chess Agent to Play Against Opposing Agents, Designed a reinforcement learning-based chess agent to compete with various AI models., Steven James
  • Photo cartoonization using Generative Adversarial Networks, Built a GAN model to transform real-world images into artistic cartoon representations., Hairong Bau
  • Training a Perceptron on a Binary Task Using the MNIST Dataset, Implemented and trained a perceptron model to classify handwritten digits., Annik Yalnizyan-Carson

Publications Presentations

  • Investigating the Potential of Heart Rate Variability as a Potential Biomarker for Dementia, 05/24, Poster presentation at the Wits Innovation Day
  • Feasibility of Leveraging Consumer Wearable Devices with Data Platform Integration for Patient Vitals Monitoring in Low-Resource Settings., 05/23, Published in Hindawi International Journal of Telemedicine and Applications
  • Training the Perceptron For Binary Classification Using the Mnist Dataset, 05/23, Presented research at IBRO-Simons Computational Neuroscience Imbizo (ISICNI)
  • Detection of Brain Tumors Using Deep Learning, 05/23, Presented research at IBRO-Simons Computational Neuroscience Imbizo (ISICNI)
  • Orthopedic Wearable Device with Infrared Light to Stimulate Bone Healing, 05/21, Published a YouTube presentation video for the Virtual Internship in Biomedical Engineering.

Workshops Conferences Summer Schools

  • Deep Learning Indaba Conference, Dakar, Senegal, 05/24
  • Deep Learning IndabaX Conference, Johannesburg, South Africa, 05/24
  • Deep Learning Indaba Conference, Accra, Ghana, 05/23
  • ISMRM African Chapter Workshop, Accra, Ghana, 05/23
  • IBRO-Simons Computational Neuroscience Imbizo (ISICNI), Cape Town, South Africa, 05/23

Volunteer Experience

  • Deep Learning Indaba, Workshop Organiser, 05/24, Organized a workshop on NeuroAI.
  • Breast Screening Outreach, BME Team Aid, 05/23, Assisted with vital signs measurements.
  • Qatar Charity Pediatric Cardiological Interventional Surgery, BME Team Aid, 05/23, Coordinated all medical equipment requirements for the project.

Certification

Deep Learning 2024 | September 2024

IBRO-Simons Computational Neuroscience Imbizo | May 2023

Basic Life Support (BLS) | February 2023

Python, Kaggle | July 2022

Intro to Machine Learning, Kaggle | July 2022

Virtual Internship in Biomedical Engineering | July 2021

National Web Development Training Program | September 2020

Accomplishments

    Google DeepMind Scholarship at the University of the Witwatersrand | 2023

References

References available upon request.

Timeline

Data Science Researcher

University of Witwatersrand
01.2024 - Current

Freelance Data Analyst & AI Developer

Self-employed
01.2023 - Current

National Service Personnel

University of Ghana Medical Centre Ltd
01.2022 - 01.2023

Research Associate

University of Ghana
01.2022 - 12.2022

Remote Research Intern

Worcester Polytechnic Institute
01.2021 - 12.2021

Master of Science - Computer Science

University of The Witwatersrand

Bachelor of Science - Biomedical Engineering

University of Ghana
SAMUEL WINBONO-MPAABA