About


I am a lecturer in Applied Mathematics at Stellenbosch University, South Africa. I recently completed my PhD in Applied Mathematics (dissertation), where I focused on computational efficiency and likelihood reliability in continuous-time normalising flows. My research interests lie in deep generative models and computer vision, with a particular focus on 3D computer vision.

Before transitioning to academia, I worked as a software engineer in telecommunications, where I developed complex event processing applications and enhanced the frameworks supporting them. Additionally, I contributed to database integration, focusing on optimising data workflows.

Teaching


Below is a list of courses I am currently teaching and have taught in the past.

Currently Teaching Taught in the Past
Probability Theory and Statistics 114 Applied Mathematics B124
Computer Vision 792 Applied Mathematics B252
Mathematics for Machine Learning 811 Introduction to Deep Learning

Publication and preprints


  1. Multimodal base distributions in conditional flow matching generative models
    Shane Josias, Willie Brink
    British Machine Vision conference (BMVC), paper 492, 2024
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  2. Multimodal base distributions for continuous-time normalising flows
    Shane Josias, Willie Brink
    The Symbiosis of Deep Learning and Differential Equations Workshop at NeurIPS, 2023
    html | poster

  3. Deep learning approaches to landmark detection in tsetse wing images
    Dylan Geldenhuys, Shane Josias, Willie Brink, and Mulanga Makhubele, Cang Hui, Pietro Landi, Jeremy Bingham, John Hargrove, Marijn Hazelbag
    PLOS Computational Biology, 2023
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  4. Jacobian norm regularisation and conditioning in neural ODEs
    Shane Josias, Willie Brink
    Communications in Computer and Information Science, 2022
    html | slides | poster

  5. Class-selective mini-batching and multitask learning for visual relationship recognition
    Shane Josias, Willie Brink
    SAIEE Africa Research Journal, 2021
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  6. Batch construction and multitask learning in visual relationship recognition
    Shane Josias, Willie Brink
    International SAUPEC/RobMech/PRASA Conference, 2020
    html | slides