Title :
Signal segmentation using self-organizing maps
Author_Institution :
Dept. of Comput. & Appl. Math., Univ. of the Witwatersrand, Johannesburg, South Africa
Abstract :
Segmenting signals into homogeneous regions is performed in many applications. In geophysical well-log segmentation, the data sets consist of various physical measurements made at different depths down a borehole and the task is to segment the data into geologically meaningful units. The self-organizing map is a realization of an artificial neural network and finds wide application in unsupervised classification and pattern recognition problems. The author proposes using a self-organizing map for signal segmentation and demonstrate the technique by segmenting a bore-hole log
Keywords :
Bayes methods; geophysical prospecting; geophysical signal processing; learning (artificial intelligence); pattern recognition; self-organising feature maps; Bayesian learning; Bayesian training; artificial neural network; bore-hole log; borehole; data segmentation; data sets; depths; geophysical well-log segmentation; homogeneous regions; pattern recognition; physical measurements; self-organizing maps; signal segmentation; unsupervised classification; Artificial neural networks; Geologic measurements; Geology; Geophysical measurements; Geophysics computing; Neurofeedback; Neurons; Pattern recognition; Self organizing feature maps; Topology;
Conference_Titel :
Communications and Signal Processing, 1993., Proceedings of the 1993 IEEE South African Symposium on
Conference_Location :
Jan Smuts Airport
Print_ISBN :
0-7803-1292-9
DOI :
10.1109/COMSIG.1993.365841