Title
Spiking Linear Dynamical Systems on Neuromorphic Hardware for Low-Power Brain-Machine Interfaces.
Abstract
Neuromorphic architectures achieve low-power operation by using many simple spiking neurons in lieu of traditional hardware. Here, we develop methods for precise linear computations in spiking neural networks and use these methods to map the evolution of a linear dynamical system (LDS) onto an existing neuromorphic chip: IBMu0027s TrueNorth. We analytically characterize, and numerically validate, the discrepancy between the spiking LDS state sequence and that of its non-spiking counterpart. These analytical results shed light on the multiway tradeoff between time, space, energy, and accuracy in neuromorphic computation. To demonstrate the utility of our work, we implemented a neuromorphic Kalman filter (KF) and used it for offline decoding of human vocal pitch from neural data. The neuromorphic KF could be used for low-power filtering in domains beyond neuroscience, such as navigation or robotics.
Year
Venue
Field
2018
arXiv: Neural and Evolutionary Computing
Linear dynamical system,Computer science,Filter (signal processing),Neuromorphic engineering,Chip,Kalman filter,Computational science,Artificial intelligence,Decoding methods,Spiking neural network,Machine learning,TrueNorth
DocType
Volume
Citations 
Journal
abs/1805.08889
0
PageRank 
References 
Authors
0.34
7
4
Name
Order
Citations
PageRank
David G. Clark100.34
Jesse A. Livezey2323.97
Edward Chang312.71
Kristofer E Bouchard4188.99