Pattern learning and recognition apparatus in a computer system

Details Pattern learning and recognition apparatus in a computer system Pattern learning and recognition apparatus in a computer system

1989-03-08

1991-08-13

Harkcom, Gary V.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

364513, G10L 708, G01L 106

Patent

active

050402145

ABSTRACT:
A masking field network F.sub.2, is characterized through systematic computer simulations serves or a content addressable memory. Masking field network F.sub.2 receives input patterns from an adaptive filter F.sub.1 .fwdarw.F.sub.2 that is activated by a prior processing level F.sub.1. The network F.sub.2 activates compressed recognition close that are predictive with respect to the activation patterns flickering across F.sub.1, and competitively inhibits, or masks, codes which are unpredictive with respect to the F.sub.1 patterns. The masking field can simultaneously detect multiple groupings within its input patterns and assign activation weights to the recognition codes for these groupings which are predictive with respect to the contextual information embedded within the patterns and the prior learning of the network. Automatic rescaling of sensitivity of the masking field as the overall size of an input pattern changes, allows stronger activation of a code for the whole F.sub.1 pattern than for its salient parts. Network F.sub.2 also exhibits adaptive sharpening such that repetition of a familiar F.sub.1 pattern can tune the adaptive filter to elicit a more focal spatial activation of its F.sub.2 recognition code than does an unfamiliar input pattern. The F.sub.2 recognition code also becomes less distributed when an input pattern contains more contextual information on which to base an unambiguous prediction of the F.sub.1 pattern being processed. Thus the masking field embodies a real-time code to process the predictive evidence contained within its input patterns. Such capabilities are useful in speech recognition, visual object recognition, and cognitive information processi n

REFERENCES:
patent: 3103648 (1963-09-01), Hartmanis
patent: 3191149 (1965-06-01), Andrews
patent: 3273125 (1966-09-01), Jakowatz
patent: 3287649 (1966-11-01), Rosenblatt
patent: 3638196 (1972-01-01), Nishiyama et al.
patent: 3701095 (1972-10-01), Yamaguchi et al.
patent: 3950733 (1976-04-01), Cooper
patent: 3993976 (1976-11-01), Ginsburg
patent: 4044243 (1977-08-01), Cooper
patent: 4254474 (1981-03-01), Cooper
patent: 4319331 (1982-03-01), Elbaum
patent: 4326259 (1982-04-01), Cooper
patent: 4451929 (1984-05-01), Yoshida
patent: 4479241 (1984-10-01), Buckley
patent: 4591980 (1986-05-01), Huberman et al.
patent: 4599693 (1986-07-01), Denenberg
patent: 4660166 (1987-04-01), Hopfield
S. Grossberg, "A Theory of Human Memory: Self-Organization and Performance of Sensory--Motor Codes, Maps, and Plans", Progress in Theoretical Biology, vol. 5, pp. 233-374, 1978.
M. Cohen and S. Grossberg, "Neural Dynamics of Speech and Language Coding: Developmental Programs, Perceptual Grouping, and Competition for Short-Term Memory", Human Neurobiology, 5, pp. 1-22, 1986.
M. Cohen and S. Grossberg, "Masking Fields: A Massively Parallel Neural Architecture for Learning, Recognizing, and Predicting Multiple Groupings of Patterned Data", Applied Optics, in press, 1986.
Henry Stark, "An Optical--Digital Computer for Parallel Processing of Images", IEEE Transactions on Computers, vol. C-24, No. 4, Apr. 1975, pp. 340-347.
I. Aleksander, E. H. Mamdani, "Microcircuity Learning Nets: Improved Recognition by Means of Pattern Feedback", Electronics Letters, vol. 4, No. 20, Oct. 4, 1968, pp. 425-426.
A. G. Ivakhnenko, "Self-Organizing Systems with Positive Feedback Loops", IEEE Transactions on Automatic Control, vol. AC-8, No. 3, Jul. 1963, pp. 247-254.

Affiliated with

Also associated with

Rating

Pattern learning and recognition apparatus in a computer system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pattern learning and recognition apparatus in a computer system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pattern learning and recognition apparatus in a computer system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1533022