N-TUPLE OR RAM BASED NEURAL NETWORK CLASSIFICATION SYSTEM AND METHOD

摘要

The invention relates to a system and a method of training a computer classification system which can be defined by a network comprising a number of n-tuples or Look Up Tables (LUTs), with each n-tuple or LUT comprising a number of rows corresponding to at least a subset of possible classes and comprising columns being addressed by signals or elements of sampled training input data examples, each column being defined by a vector having cells with values, the method comprising determining the column vector cell values based on one or more training sets of training input data examples for different classes so that at least part of the cells comprise or point to information based on the number of times the corresponding cell address is sampled from one or more sets of training input examples, and determining weight cell values corresponding to one or more column vector cells being addressed or sampled by the training examples to thereby allow weighting of one or more column vector cells of positive value during a classification process, said weight cell values being determined based on the information of at least part of the determined column vector cell values and by use of at least part of the training set(s) of input examples. A second aspect of the invention is a system and a method for determining - in a computer classification system - weight cell values corresponding to one or more column vector cells being addressed by the training examples, wherein the determination is based on the information of at least part of the determined vector cell values, said determination allowing weighting of column vector cells having a positive value or a non-positive value. Finally the invention provides a method and a system for classifying input data examples into a plurality of classes using the computer classification systems.