Title :
Analytical feature extraction and spectral summation
Author :
Windeatt, Terry ; Tebbs, Robert
Author_Institution :
Dept. of Electron. Eng., Surrey Univ., Guildford, UK
Abstract :
We propose a formalism for analysing multilayer perceptron (MLP) networks as propagations of binary transitions along excitatory and inhibitory sensitised paths. By characterising a Boolean function as sets of detected transitions, we produce a spectral summation and construct a network from the derived weight constraints. We build hidden node feature detectors by incorporating k-monotonicity checks in the partitioning step of a constructive algorithm. Propagation constraints are also used in an MLP network using gradient descent learning to limit hyperplane movement in weight space. Results for a pattern classification task represented as a binary-to-binary mapping show improved convergence and generalisation performance
Keywords :
Boolean functions; character recognition; feature extraction; learning (artificial intelligence); multilayer perceptrons; pattern classification; spectral analysis; Boolean function; analytical feature extraction; binary transitions; character recognition; generalisation; gradient descent learning; hidden node feature detectors; hyperplane movement; k-monotonicity checks; multilayer perceptron; pattern classification; propagation constraints; spectral representation; spectral summation; weight constraints; weight space; Backpropagation; Boolean functions; Computer vision; Convergence; Detectors; Feature extraction; Hypercubes; Logic; Network synthesis; Partitioning algorithms;
Conference_Titel :
Pattern Recognition, 1996., Proceedings of the 13th International Conference on
Conference_Location :
Vienna
Print_ISBN :
0-8186-7282-X
DOI :
10.1109/ICPR.1996.547437