Search Results for author: Benjamin van Niekerk

Found 9 papers, 3 papers with code

Towards unsupervised phone and word segmentation using self-supervised vector-quantized neural networks

no code implementations14 Dec 2020 Herman Kamper, Benjamin van Niekerk

We specifically constrain pretrained self-supervised vector-quantized (VQ) neural networks so that blocks of contiguous feature vectors are assigned to the same code, thereby giving a variable-rate segmentation of the speech into discrete units.

Towards localisation of keywords in speech using weak supervision

no code implementations14 Dec 2020 Kayode Olaleye, Benjamin van Niekerk, Herman Kamper

Of the two forms of supervision, the visually trained model performs worse than the BoW-trained model.

Online Constrained Model-based Reinforcement Learning

no code implementations7 Apr 2020 Benjamin van Niekerk, Andreas Damianou, Benjamin Rosman

The environment's dynamics are learned from limited training data and can be reused in new task instances without retraining.

Gaussian Processes Model-based Reinforcement Learning +2

If dropout limits trainable depth, does critical initialisation still matter? A large-scale statistical analysis on ReLU networks

no code implementations13 Oct 2019 Arnu Pretorius, Elan van Biljon, Benjamin van Niekerk, Ryan Eloff, Matthew Reynard, Steve James, Benjamin Rosman, Herman Kamper, Steve Kroon

Our results therefore suggest that, in the shallow-to-moderate depth setting, critical initialisation provides zero performance gains when compared to off-critical initialisations and that searching for off-critical initialisations that might improve training speed or generalisation, is likely to be a fruitless endeavour.

Will it Blend? Composing Value Functions in Reinforcement Learning

no code implementations12 Jul 2018 Benjamin van Niekerk, Steven James, Adam Earle, Benjamin Rosman

An important property for lifelong-learning agents is the ability to combine existing skills to solve unseen tasks.

reinforcement-learning reinforcement Learning

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