Search Results for author: Terence van Zyl

Found 9 papers, 2 papers with code

Improving Cause-of-Death Classification from Verbal Autopsy Reports

no code implementations31 Oct 2022 Thokozile Manaka, Terence van Zyl, Deepak Kar

We present a system that relies on two transfer learning paradigms of monolingual learning and multi-source domain adaptation to improve VA narratives for the target task of the COD classification.

Classification Domain Adaptation +1

Using Machine Learning to Fuse Verbal Autopsy Narratives and Binary Features in the Analysis of Deaths from Hyperglycaemia

1 code implementation26 Apr 2022 Thokozile Manaka, Terence van Zyl, Alisha N Wade, Deepak Kar

Lower-and-middle income countries are faced with challenges arising from a lack of data on cause of death (COD), which can limit decisions on population health and disease management.

BIG-bench Machine Learning Management

Deep Reinforcement Learning and Convex Mean-Variance Optimisation for Portfolio Management

no code implementations13 Feb 2022 Ruan Pretorius, Terence van Zyl

By incorporating specific investor preferences into our RL models' reward functions, a more comprehensive comparison could be made to traditional methods in risk-return space.

Management reinforcement-learning +1

Investigating Transfer Learning in Graph Neural Networks

no code implementations1 Feb 2022 Nishai Kooverjee, Steven James, Terence van Zyl

Graph neural networks (GNNs) build on the success of deep learning models by extending them for use in graph spaces.

Graph Classification Node Classification +1

Surrogate Parameters Optimization for Data and Model Fusion of COVID-19 Time-series Data

no code implementations9 Sep 2021 Timilehin Ogundare, Terence van Zyl

We examine the development of a system named ADRIANA for the simulation using South Africa as a case study.

Management Time Series +1

The efficient frontiers of mean-variance portfolio rules under distribution misspecification

no code implementations19 Jun 2021 Andrew Paskaramoorthy, Tim Gebbie, Terence van Zyl

Mean-variance portfolio decisions that combine prediction and optimisation have been shown to have poor empirical performance.

A Framework for Online Investment Algorithms

1 code implementation30 Mar 2020 Andrew Paskaramoorthy, Terence van Zyl, Tim Gebbie

This article provides a workflow that can in-turn be embedded into a process level learning framework.

Management

Inter- and Intra-domain Knowledge Transfer for Related Tasks in Deep Character Recognition

no code implementations2 Jan 2020 Nishai Kooverjee, Steven James, Terence van Zyl

In this paper we analyse the effectiveness of using deep transfer learning for character recognition tasks.

Transfer Learning

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