Search Results for author: Terence L van Zyl

Found 7 papers, 0 papers with code

Machine Learning for Socially Responsible Portfolio Optimisation

no code implementations21 May 2023 Taeisha Nundlall, Terence L van Zyl

Socially responsible investors build investment portfolios intending to incite social and environmental advancement alongside a financial return.

Statistics and Deep Learning-based Hybrid Model for Interpretable Anomaly Detection

no code implementations25 Feb 2022 Thabang Mathonsi, Terence L van Zyl

Hybrid methods have been shown to outperform pure statistical and pure deep learning methods at both forecasting tasks, and at quantifying the uncertainty associated with those forecasts (prediction intervals).

Anomaly Detection Prediction Intervals

ConVAEr: Convolutional Variational AutoEncodeRs for incremental similarity learning

no code implementations29 Sep 2021 Jiahao Huo, Terence L van Zyl

We then investigate the viability of generating “embedding” exemplars from a VAE that can protect base knowledge in the intermediate to output layers of the neural networks.

Metric Learning Transfer Learning

Surrogate Assisted Strategies (The Parameterisation of an Infectious Disease Agent-Based Model)

no code implementations19 Aug 2021 Rylan Perumal, Terence L van Zyl

Also, we show that DYnamic COOrdindate Search Using Response Surface Models with XGBoost as a surrogate attains in combination the highest probability of approximating a cumulative synthetic daily infection data distribution and achieves the most significant speedup with regards to our analysis.

Surrogate Assisted Methods for the Parameterisation of Agent-Based Models

no code implementations26 Aug 2020 Rylan Perumal, Terence L van Zyl

We propose an ABMS framework which facilitates the effective integration of different sampling methods and surrogate models (SMs) in order to evaluate how these strategies affect parameter calibration and exploration.

Unique Faces Recognition in Videos

no code implementations10 Jun 2020 Jiahao Huo, Terence L van Zyl

The contribution of this paper is two-fold: to begin, the experiments have established 3-D Convolutional networks and 2-D LSTMs with the contrastive loss on image sequences do not outperform Google/Inception architecture with contrastive loss in top $n$ rank face retrievals with still images.

Face Recognition Metric Learning

Comparison of Recurrent Neural Network Architectures for Wildfire Spread Modelling

no code implementations26 May 2020 Rylan Perumal, Terence L van Zyl

In this paper, we compare the Gated Recurrent Unit (GRU) and the Long Short-Term Memory (LSTM) network.

Time Series Time Series Analysis

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