Search Results for author: Rendani Mbuvha

Found 11 papers, 2 papers with code

Healing Gaussian Process Experts

no code implementations ICML 2020 samuel cohen, Rendani Mbuvha, Tshilidzi Marwala, Marc Deisenroth

Gaussian processes (GPs) are nonparametric Bayesian models that have been applied to regression and classification problems.

Gaussian Processes General Classification +2

MphayaNER: Named Entity Recognition for Tshivenda

1 code implementation8 Apr 2023 Rendani Mbuvha, David I. Adelani, Tendani Mutavhatsindi, Tshimangadzo Rakhuhu, Aluwani Mauda, Tshifhiwa Joshua Maumela, Andisani Masindi, Seani Rananga, Vukosi Marivate, Tshilidzi Marwala

Named Entity Recognition (NER) plays a vital role in various Natural Language Processing tasks such as information retrieval, text classification, and question answering.

Information Retrieval named-entity-recognition +6

Imputation of Missing Streamflow Data at Multiple Gauging Stations in Benin Republic

no code implementations17 Nov 2022 Rendani Mbuvha, Julien Yise Peniel Adounkpe, Wilson Tsakane Mongwe, Mandela Houngnibo, Nathaniel Newlands, Tshilidzi Marwala

We show by simulating missingness in a testing period that GESS forecasts have a significant bias that results in low predictive skill over the ten Beninese stations.

Decision Making Imputation +3

Antithetic Riemannian Manifold And Quantum-Inspired Hamiltonian Monte Carlo

no code implementations5 Jul 2021 Wilson Tsakane Mongwe, Rendani Mbuvha, Tshilidzi Marwala

The Riemannian Manifold Hamiltonian Monte Carlo algorithm improves on Hamiltonian Monte Carlo by taking into account the local geometry of the target, which is beneficial for target densities that may exhibit strong correlations in the parameters.

Predicting Higher Education Throughput in South Africa Using a Tree-Based Ensemble Technique

no code implementations12 Jun 2021 Rendani Mbuvha, Patience Zondo, Aluwani Mauda, Tshilidzi Marwala

We use gradient boosting machines and logistic regression to predict academic throughput at a South African university.

regression

Forecasting The JSE Top 40 Using Long Short-Term Memory Networks

no code implementations20 Apr 2021 Adam Balusik, Jared de Magalhaes, Rendani Mbuvha

This paper uses a long-short term memory network to perform financial time series forecasting on the return data of the JSE Top 40 index.

Time Series Time Series Forecasting

Healing Products of Gaussian Processes

1 code implementation14 Feb 2021 samuel cohen, Rendani Mbuvha, Tshilidzi Marwala, Marc Peter Deisenroth

Gaussian processes (GPs) are nonparametric Bayesian models that have been applied to regression and classification problems.

Gaussian Processes General Classification +2

An Automatic Relevance Determination Prior Bayesian Neural Network for Controlled Variable Selection

no code implementations6 Jan 2020 Rendani Mbuvha, Illyes Boulkaibet, Tshilidzi Marwala

We present an Automatic Relevance Determination prior Bayesian Neural Network(BNN-ARD) weight l2-norm measure as a feature importance statistic for the model-x knockoff filter.

Feature Importance Variable Selection

On the Performance of Network Parallel Training in Artificial Neural Networks

no code implementations18 Jan 2017 Ludvig Ericson, Rendani Mbuvha

Artificial Neural Networks (ANNs) have received increasing attention in recent years with applications that span a wide range of disciplines including vital domains such as medicine, network security and autonomous transportation.

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