NEUROMORPHIC ARCHITECTURE FOR UNSUPERVISED PATTERN DETECTION AND FEATURE LEARNING
First Claim
1. An apparatus for computation comprising:
- a first neuronal module comprising a first plurality of neurons, wherein each neuron in the first plurality of neurons operates with a different learning mechanism selected from a first set of learning mechanisms;
a second neuronal module comprising a second plurality of neurons, wherein each neuron in the second plurality of neurons operates with a different learning mechanism selected from a second set of learning mechanisms; and
an arbitration mechanism operatively connected to the first neuronal module and the second neuronal module.
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Abstract
Embodiments relate to a neuromorphic architecture for unsupervised feature learning using memristive synapses realized using phase-change devices. A spiking neural network architecture for unsupervised pattern learning and a spike-based learning algorithm compatible with phase-change synapses is described, and a feature-learning algorithm capable of performing a sequence of set operations on input patterns is provided. A learning rule for the extraction of certain features of the input that is compatible with spiking neurons and synapses with spike-based plasticity is also provided. The system enables enhanced pattern- and feature-extraction capabilities in neuromorphic systems.
15 Citations
20 Claims
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1. An apparatus for computation comprising:
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a first neuronal module comprising a first plurality of neurons, wherein each neuron in the first plurality of neurons operates with a different learning mechanism selected from a first set of learning mechanisms; a second neuronal module comprising a second plurality of neurons, wherein each neuron in the second plurality of neurons operates with a different learning mechanism selected from a second set of learning mechanisms; and an arbitration mechanism operatively connected to the first neuronal module and the second neuronal module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for pattern detection and feature learning comprising:
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training a first neuronal module, wherein the first neuronal module comprises a first neuron having a first learning mechanism; training a second neuronal module, wherein the second neuronal module comprises a second neuron having a second learning mechanism; providing an arbitration mechanism connected to the first neuronal module and the second neuronal module; and applying an input to the first neuronal module and the second neuronal module. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An apparatus for computation comprising:
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a first neuronal module comprising a first level tuned neuron, wherein the first level tuned neuron has a first learning mechanism; a second neuronal module comprising a second level tuned neuron, wherein the second level tuned neuron has a second learning mechanism; and an arbitration mechanism operatively connected to the first neuronal module and the second neuronal module and comprising a third neuron that provides a level output that modifies the behavior of the first neuronal module and second neuronal module.
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Specification