Self organizing general pattern class separator and identifier

Details Self organizing general pattern class separator and identifier Self organizing general pattern class separator and identifier

G - Physics

06

F

354/143

G06F 15/18 (2006.01) G06K 9/66 (2006.01)

Patent

CA 1157159

ABSTRACT A system is provided for the separation into and the identification of classes of events wherein each of the events is represented by a signal vector comprising the signals s, sz...,sj...,sN. The system comprises a plurality of assemblies, each of the assemblies in- cluding a matrix of junction elements for respectively receiving as inputs the different respective signals of a vector. The junction elements provide a transfer of information Aijs,; i.e., the product of the transfer function of the element and the signal input applied thereto. The information transferred by the junction elements is summed in each assembly. In the training mode of operation information summed in each assembly is applied to a scalar multiplier and the resulting information is in turn applied to a threshold stage which is actuated to produce an output if the input applied thereto attains a prescribed value. Con- currently, the summed outputs of the junction elements are fed back to these elements to modify their transfer functions. The outputs of the threshold stages are finally processed for identification of the classes of events. In the training mode of operation the occurence of ambiguous and undesired identifications cause feedback to the pertinent scalar multipliers to decrease their multiplication factors. Such decreases are made until no further ambiguous and undesired identifications occur. At the completion of the training for a particular group of related classes of events, the values of the transfer functions of the junction elements as well as the multipliers have attained final desired values. Then, in the trained mode of operation for the separation and identification of the group of classes for which the system has been trained, the feedback to the junction elements, and the scalar multipliers with their feedback arrangements are not employed or are removed.

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