“…Wood has given examples of the second sub-category, the main representative being based on artificial neural network (NNET) architectures. He has presented the weight-sharing neural networks (LeCun, 1989;LeCun et al 1990), the highorder neural networks (Giles & Maxwell, 1987;Kanaoka et al 1992;Perantonis & Lisboa, 1992;Spirkovska & Reid, 1992), the time-delay neural networks (TDNN) (Bottou et al, 1990;Simard & LeCun, 1992;Waibel et al, 1989) and others. Finally, he has included an additional third sub-category with all the methods which cannot be placed under either the featureextraction feature-classification approach or the parameterised approach.…”