A radial basis network for seismic signal discrimination

Author

Goodman, Stephen D.

Author_Institution

Dept. of Electr. Eng., West Virginia Inst. of Technol., Montgomery, WV, USA

fYear

1993

fDate

7-9 Mar 1993

Firstpage

348

Lastpage

351

Abstract

An application of the radial basis function network to seismic waveform classification is presented. The network performs generalization and discrimination of input patterns using an external teacher. Modifications to this scheme are described. They include: (1) changing the size of the spheres; (2) using a random walk scheme during testing; (3) gradually decreasing the initial radii to avoid overlap of two distinct regions; (4) a conflict resolution mechanism; and (5) a simple means of decreasing the sphere radius. The applications to seismic signals include using the moments over a sliding window and the first several points of a wavelet. The speed of training of this network exceeds that of backpropagation with the same error rate

Keywords

Gaussian processes; feedforward neural nets; generalisation (artificial intelligence); geophysical signal processing; learning (artificial intelligence); pattern classification; seismic waves; waveform analysis; wavelet transforms; Gaussian spheres; conflict resolution; external teacher; generalization; moments; radial basis function network; random walk scheme; seismic signal discrimination; seismic waveform classification; sliding window; speed of training; wavelet; Backpropagation; Error analysis; Extraterrestrial measurements; Feeds; Filling; Neural networks; Pattern recognition; Radial basis function networks; Signal resolution; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1993. Proceedings SSST '93., Twenty-Fifth Southeastern Symposium on

Conference_Location

Tuscaloosa, AL

ISSN

0094-2898

Print_ISBN

0-8186-3560-6

Type

conf

DOI

10.1109/SSST.1993.522800

Filename

522800