Title :
Invariant property of spatio-temporal feature maps using gated neuronal architecture
Author :
Chandrasekaran, V. ; Palaniswani, M. ; Caelli, Terry M.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Melbourne Univ., Parkville, Vic., Australia
Abstract :
In this paper it is shown that the spatio-temporal signature generated for any input pattern on a topologically ordered feature map using a gated neuronal architecture is invariant over a neighbourhood of the input pattern provided the input patterns lie in the interior of the decision space and the regions of competition created by n-dimensional spatial grating function at any given spatial frequency are open. The spatio-temporal signature in a Gated Neuronal Architecture uniquely represents a collection of disjoint regions in the feature space. For pattern classification the labeling of the set of disjoint regions represented by the spatio-temporal signature is obtained by using Bayes conditional probabilities. Simulation results indicate improved performance
Keywords :
Bayes methods; neural net architecture; pattern classification; probability; self-organising feature maps; unsupervised learning; Bayes conditional probabilities; decision space; disjoint regions; feature space; gated neuronal architecture; input pattern; pattern classification; performance; simulation results; spatial frequency; spatial grating function; spatio-temporal feature maps; spatio-temporal signature; topologically ordered feature map; Computer architecture; Computer science; Extraterrestrial measurements; Frequency; Gratings; Labeling; Neurons; Pattern analysis; Pattern classification; Visualization;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389582