Learning Feature Mappings Using Evolutionary Computation
Konsta KoppinenTampere University of Technology
Tampere, FinlandICSI Speech Lunch 1/27/04
Overview
Labeledspeech
Feature pool:-mel-band energy-cepstral coeff-harmonicity-…
ax-h
sey
l v
Sparse neural network
b d e f ey a jh s zPhonetic target neurons
• Training using evolutionary algorithms– mutation
• change weight• add/remove neuron• add/remove connection
– crossover
• Evaluation using frame-level phonetic targets– estimation of performance using sampling– penalty for complexity of network
Neural Network Training
0.10.2
0.10.7
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