My PhD Thesis, 1997

Author: Don Colton

thesis.pdf, 1997, 161p, 98 MB scanned, This is a copy from the official repository posted by Oregon Graduate Institute, now a branch of Oregon Health and Sciences University.

OHSU Official Repository: but does not seem to be working today (2011-09-04):
http://content.ohsu.edu/cgi-bin/showfile.exe?CISOROOT=/etd&CISOPTR=21

Confidence and Rejection in Automatic Speech Recognition

Larry Don Colton

B.S., Brigham Young University, 1976 M.B.A., Brigham Young University, 1978

A dissertation submitted to the faculty of the Oregon Graduate Institute of Science and Technology in partial fulfillment of the requirements for the degree Doctor of Philosophy in Computer Science and Engineering

August 1997

Contents

Dedication ... iv
Acknowledgements ... v
Abstract ... xiii
1 Introduction ... 1
1.1 Research Goals ... 1
1.2 Male / Female Versus Last Names ... 2
1.3 Scaling Up: 58 Phrases ... 4
1.4 Vocabulary Independence ... 5
1.5 Thesis Overview ... 6
1.6 Tutorial on Automatic Speech Recognition ... 7
1.6.1 A Setting for Automatic Speech Recognition ... 7
1.6.2 Overview of SpeechRecognition ... 8
1.6.3 Artificial Neural Network ... 12
1.6.4 Context-Dependent Modeling ... 13
1.6.5 Viterbi Search Example ... 14
1.6.6 What Can Go Wrong? ... 17
1.6.7 Wanted: Absolute Probabilities ...18
1.7 Definitions Used in This Thesis ... 19
1.7.1 Speech Recognition ... 19
1.7.2 Confidence Measurement ... 23
1.7.3 Algorithm Names ... 25
1.7.4 Miscellaneous Terms ... 26
(more not transcripted yet)