Search Results for author: Ella M. Gale

Found 6 papers, 1 papers with code

Are there any 'object detectors' in the hidden layers of CNNs trained to identify objects or scenes?

1 code implementation2 Jul 2020 Ella M. Gale, Nicholas Martin, Ryan Blything, Anh Nguyen, Jeffrey S. Bowers

We find that the different measures provide different estimates of object selectivity, with precision and CCMAS measures providing misleadingly high estimates.

General Classification Image Classification +1

Under what circumstances do local codes emerge in feed-forward neural networks

no code implementations25 Sep 2019 Ella M. Gale, Nicolas Martin

Pseudo-deep networks (2 hidden layers) which have many LCs lose them when common aspects of deep-NN research are applied (large training data, ReLU activations, early stopping on training accuracy and softmax), suggesting that LCs may not be found in deep-NNs.

Selectivity metrics can overestimate the selectivity of units: a case study on AlexNet

no code implementations27 Sep 2018 Ella M. Gale, Anh Nguyen, Ryan Blything, Nicholas Martin and Jeffrey S. Bowers

These findings highlight the problem with current selectivity measures and show that new measures are required in order to provide a better assessment of learned representations in NNs.

When and where do feed-forward neural networks learn localist representations?

no code implementations ICLR 2018 Ella M. Gale, Nicolas Martin, Jeffrey S. Bowers

We find that the number of local codes that emerge from a NN follows a well-defined distribution across the number of hidden layer neurons, with a peak determined by the size of input data, number of examples presented and the sparsity of input data.

Spiking memristor logic gates are a type of time-variant perceptron

no code implementations8 Jan 2018 Ella M. Gale

Memristors are low-power memory-holding resistors thought to be useful for neuromophic computing, which can compute via spike-interactions mediated through the device's short-term memory.

Vocal Bursts Type Prediction

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