Search Results for author: Tara Julia Hamilton

Found 13 papers, 1 papers with code

Investigation of event-based memory surfaces for high-speed tracking, unsupervised feature extraction and object recognition

no code implementations14 Mar 2016 Saeed Afshar, Gregory Cohen, Tara Julia Hamilton, Jonathan Tapson, Andre van Schaik

This variance motivated the investigation of event-based decaying memory surfaces in comparison to time-based decaying memory surfaces to capture the temporal aspect of the event-based data.

Object Recognition

A Stochastic Approach to STDP

no code implementations13 Mar 2016 Runchun Wang, Chetan Singh Thakur, Tara Julia Hamilton, Jonathan Tapson, André van Schaik

The decay generator will then generate an exponential decay, which will be used by the STDP adaptor to perform the weight adaption.

8k

A compact aVLSI conductance-based silicon neuron

no code implementations3 Sep 2015 Runchun Wang, Chetan Singh Thakur, Tara Julia Hamilton, Jonathan Tapson, Andre van Schaik

We present an analogue Very Large Scale Integration (aVLSI) implementation that uses first-order lowpass filters to implement a conductance-based silicon neuron for high-speed neuromorphic systems.

A neuromorphic hardware architecture using the Neural Engineering Framework for pattern recognition

1 code implementation21 Jul 2015 Runchun Wang, Chetan Singh Thakur, Tara Julia Hamilton, Jonathan Tapson, Andre van Schaik

The architecture is not limited to handwriting recognition, but is generally applicable as an extremely fast pattern recognition processor for various kinds of patterns such as speech and images.

Handwriting Recognition Handwritten Digit Recognition

A Trainable Neuromorphic Integrated Circuit that Exploits Device Mismatch

no code implementations10 Jul 2015 Chetan Singh Thakur, Runchun Wang, Tara Julia Hamilton, Jonathan Tapson, Andre van Schaik

Additionally, we characterise each neuron and discuss the statistical variability of its tuning curve that arises due to random device mismatch, a desirable property for the learning capability of the TAB.

An Online Learning Algorithm for Neuromorphic Hardware Implementation

no code implementations11 May 2015 Chetan Singh Thakur, Runchun Wang, Saeed Afshar, Gregory Cohen, Tara Julia Hamilton, Jonathan Tapson, Andre van Schaik

We propose a sign-based online learning (SOL) algorithm for a neuromorphic hardware framework called Trainable Analogue Block (TAB).

regression

A neuromorphic hardware framework based on population coding

no code implementations2 Mar 2015 Chetan Singh Thakur, Tara Julia Hamilton, Runchun Wang, Jonathan Tapson, André van Schaik

These neuronal populations are characterised by a diverse distribution of tuning curves, ensuring that the entire range of input stimuli is encoded.

FPGA Implementation of the CAR Model of the Cochlea

no code implementations2 Mar 2015 Chetan Singh Thakur, Tara Julia Hamilton, Jonathan Tapson, Richard F. Lyon, André van Schaik

Here, we implement the Cascade of Asymmetric Resonators (CAR) model of the cochlea on an FPGA.

Turn Down that Noise: Synaptic Encoding of Afferent SNR in a Single Spiking Neuron

no code implementations11 Nov 2014 Saeed Afshar, Libin George, Jonathan Tapson, Andre van Schaik, Philip de Chazal, Tara Julia Hamilton

We have added a simplified neuromorphic model of Spike Time Dependent Plasticity (STDP) to the Synapto-dendritic Kernel Adapting Neuron (SKAN).

Racing to Learn: Statistical Inference and Learning in a Single Spiking Neuron with Adaptive Kernels

no code implementations6 Aug 2014 Saeed Afshar, Libin George, Jonathan Tapson, Andre van Schaik, Tara Julia Hamilton

This paper describes the Synapto-dendritic Kernel Adapting Neuron (SKAN), a simple spiking neuron model that performs statistical inference and unsupervised learning of spatiotemporal spike patterns.

Delay Learning Architectures for Memory and Classification

no code implementations6 Nov 2013 Shaista Hussain, Arindam Basu, R. Wang, Tara Julia Hamilton

We present a neuromorphic spiking neural network, the DELTRON, that can remember and store patterns by changing the delays of every connection as opposed to modifying the weights.

Classification General Classification

The Ripple Pond: Enabling Spiking Networks to See

no code implementations13 Jun 2013 Saeed Afshar, Gregory Cohen, Runchun Wang, Andre van Schaik, Jonathan Tapson, Torsten Lehmann, Tara Julia Hamilton

In this paper we present the biologically inspired Ripple Pond Network (RPN), a simply connected spiking neural network that, operating together with recently proposed PolyChronous Networks (PCN), enables rapid, unsupervised, scale and rotation invariant object recognition using efficient spatio-temporal spike coding.

Object Recognition

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