Representing and Combining Dynamics in Biologically Plausible Neurons

Tech Report, 2017

Sean Aubin

Abstract

Conceptors, although biologically implausible, admirably capture high dimensional dynamical patterns. This report contains a concise overview of Conceptors and describes how the same dynamical pattern approximation can be achieved, with limitations, in a biologically plausible manner using the Neural Engineering Framework. Two methods are compared to Conceptors with this goal in mind: Rhythmic Dynamic Movement Primitives, both with and without point attractors. In terms of representing a dynamic signal, Dynamic Movement Primitives implemented directly performed well for low-frequency signals, while Conceptors performed well for high-frequency sinusoidal signals. In terms of blending between dynamic signals, Conceptors are distinct from Dynamic Movement Primitives, but this usefulness of this is unclear.

Full text links

PDF

CTN Tech Report

Issn
CTN-TR-20170102-01
Address
Waterloo, ON
Month
01
Supplementary
https://github.com/Seanny123/nef-conceptors
Institution
Centre for Theoretical Neuroscience

Cite

Plain text

BibTeX