• Investigation of a simplified open boundary condition for coastal and shelf sea hydrodynamic models 

      Shabangu, Patrick Eminet (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT : In general, coastal and shelf hydrodynamic modelling is undertaken with limited area numerical models such as Delft3D or Mike 21. To conduct successful numerical simulations these programmes require ...
    • Link prediction in knowledge graphs using latent feature modelling and neural tensor factorisation 

      Magangane, Luyolo (Stellenbosch : Stellenbosch University, 2020-12)
      ENGLISH ABSTRACT: Reasoning over knowledge expressed in natural language is a problem at the forefront of artificial intelligence. Question answering is one of the core tasks of this problem, and is concerned with giving ...
    • The localization game on Cartesian products 

      Boshoff, Jeandre (Stellenbosch : Stellenbosch University, 2020-12)
      ENGLISH ABSTRACT: The localization game is played by two players: a Cop with a team of k cops, and a Robber. The game is initialised by the Robber choosing a vertex r 2 V , unknown to the Cop. Thereafter, the game proceeds ...
    • Modelling the South African fresh fruit export supply chain 

      Ortmann, Frank Gerald (Stellenbosch : University of Stellenbosch, 2005-12)
      ENGLISH ABSTRACT : The process of modelling the fruit export infrastructure capacity of South Africa formed part of a larger project called the Fruit Logistics Infrastructure Capacity Optimisation Study," which was ...
    • Modelling the spread of waterborne disease in salmon farms by means of a Lagrangian particle tracking model 

      Kennealy, Meghan (Stellenbosch : Stellenbosch University, 2020-12)
      ENGLISH ABSTRACT: This study sets out to model the spread of a waterborne disease between cages within an open water salmon farm, by means of a Lagrangian particle tracking model. The study modelled the flow through and ...
    • Modifying and generalising the Radon transform for improved curve-sensitive feature extraction 

      Fick, Carlien (Stellenbosch : Stellenbosch University, 2017-12-01)
      ENGLISH ABSTRACT : In this thesis a novel and generic feature extraction protocol that is based on the well-known standard discrete Radon transform (SDRT) is presented. The SDRT is traditionally associated with computerised ...
    • Multitask learning and data distribution search in visual relationship recognition 

      Josias, Shane (Stellenbosch : Stellenbosch University., 2020-03)
      ENGLISH ABSTRACT: An image can be described by the objects within it, as well as the interactions between those objects. A pair of object labels together with an interaction label can be assembled into what is known as ...
    • Pore-scale modelling for fluid transport in 2D porous media 

      Cloete, Maret (Stellenbosch : University of Stellenbosch, 2006-12)
      In the present study, a model to predict the hydrodynamic permeability of viscous flow through an array of solid phase rectangles of any aspect ratio is derived. This also involves different channel widths in the streamwise ...
    • Predicting the effect of biofilm growth on the pressure drop over a biofilter 

      van Jaarsveld, Jacoline (Stellenbosch : Stellenbosch University, 2017-12)
      ENGLISH ABSTRACT : Hydrogen sulphide is a poisonous gas produced by several industries. It is therefore crucial to investigate and mathematically model the environmentally friendly biofiltration process, which has the ...
    • A probabilistic graphical model approach to solving the structure and motion problem 

      Streicher, Simon Frederik (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: Probabilistic graphical models show great promise in resolving uncertainty within large systems by using probability theory. However, the focus is usually on problems with a discrete representation, or ...
    • Shark identification using the notches in the dorsal fin 

      Marais, Tessa (Stellenbosch : Stellenbosch University, 2016-12)
      ENGLISH ABSTRACT : In order to protect endangered species, such as the Great White shark, a reliable estimate of the population is needed. In counting animals, it is necessary to be able to distinguish between individuals. ...
    • Short-term stream flow forecasting and downstream gap infilling using machine learning techniques 

      Steyn, Melise (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT : Stream flow is an important component in the hydrological cycle and plays a vital role in many hydrological applications. Accurate stream flow forecasts may be used for the study of various hydro-environmental ...
    • The study of similarity score calculation methods for minutia-based fingerprint matching algorithms 

      De Kock, Antonie Johannes (Stellenbosch : Stellenbosch University, 2016-11)
      ENGLISH ABSTRACT : This study aims to establish guidelines for calculating the similarity score between two minutia point representations of ngerprints for minutia-based ngerprint matching. Existing research does not ...
    • Systems level cancer disease target identification using tumor microenvironment dynamics 

      Makinde, Funmilayo Lydia (Stellenbosch : Stellenbosch University, 2018-12)
      ENGLISH ABSTRACT : Cancer is the second driving reasons for death around the world. It is an abnormal growth of cells which can migrate and recreate cellular microenvironment and can also be caused by successive alterations ...
    • Text detection in natural images using convolutional neural networks 

      Grond, Marco Marten (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT : In this study we attempt to solve the problem of text detection in natural images. This requires us to identify regions in a natural image that contain text. Possible applications range from assistive ...
    • Thermal and colour data fusion for people detection and tracking 

      Joubert, Pierre (Stellenbosch : Stellenbosch University, 2014-04)
      ENGLISH ABSTRACT: In this thesiswe approach the problem of tracking multiple people individually in a video sequence. Automatic object detection and tracking is non-trivial as humans have complex and mostly unpredictable ...
    • Time series analysis of data measured in the nearshore area 

      Mphasha, Rosa (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT : Factors that lead to the generation of currents in the nearshore area within the Natal Bight were investigated. The investigation was carried out on data that spans from the 6th June 2012 to the 16th ...
    • Tracking with context 

      Du Toit, Carlo (Stellenbosch : Stellenbosch University, 2016-12-01)
      ENGLISH ABSTRACT : Tracking in an unconstrained environment presents a difficult challenge. Abrupt object motion, appearance changes, non-rigid objects and occlusion are but a few of the trials faced. To overcome these ...
    • Transcriptomic profile based cancer disease prediction and patient survival time differentiation 

      Ofosu Mensah, Samuel (Stellenbosch : Stellenbosch University, 2018-12)
      ENGLISH ABSTRACT : Cancer disease is an abnormal growth of cells, which may be caused by mutations in genes which, as a result, alter the way cells function mainly in the way they grow and divide. Cancer cells are regulated ...
    • Video classification using deep learning 

      Newman, Gregory (Stellenbosch : Stellenbosch University., 2020-03)
      ENGLISH ABSTRACT: To help analyse, classify, and monitor video data we need scalable algorithms that can handle video sequences of various lengths. Existing approaches tend to be both computationally expensive and ...