Predicting the performance of a speech recognition task.

• Other Authors: Yau, Pui Yuk.
• Format: Others
• Language: English; Chinese
• Published: 2002
• Subjects: Automatic speech recognition
• Online Access: http://library.cuhk.edu.hk/record=b5891307; http://repository.lib.cuhk.edu.hk/en/item/cuhk-324013

Yau Pui Yuk. === Thesis (M.Phil.)--Chinese University of Hong Kong, 2002. === Includes bibliographical references (leaves 147-152). === Abstracts in English and Chinese. === Chapter 1 --- Introduction --- p.1 === Chapter 1.1 --- Overview --- p.1 === Chapter 1.2 --- Speech Recognition --- p.2 === Chapter 1.2.1 --- How Speech Recognition Works --- p.3 === Chapter 1.2.2 --- Types of Speech Recognition Tasks --- p.4 === Chapter 1.2.3 --- Variabilities in Speech 一 a Challenge for Speech Recog- nition --- p.6 === Chapter 1.3 --- Performance Prediction of Speech Recognition Task --- p.7 === Chapter 1.4 --- Thesis Goals --- p.9 === Chapter 1.5 --- Thesis Organization --- p.10 === Chapter 2 --- Background --- p.11 === Chapter 2.1 --- The Acoustic-phonetic Approach --- p.12 === Chapter 2.1.1 --- Prediction based on the Degree of Mismatch --- p.12 === Chapter 2.1.2 --- Prediction based on Acoustic Similarity --- p.13 === Chapter 2.1.3 --- Prediction based on Between-Word Distance --- p.14 === Chapter 2.2 --- The Lexical Approach --- p.16 === Chapter 2.2.1 --- Perplexity --- p.16 === Chapter 2.2.2 --- SMR-perplexity --- p.17 === Chapter 2.3 --- The Combined Acoustic-phonetic and Lexical Approach --- p.18 === Chapter 2.3.1 --- Speech Decoder Entropy (SDE) --- p.19 === Chapter 2.3.2 --- Ideal Speech Decoding Difficulty (ISDD) --- p.20 === Chapter 2.4 --- Chapter Summary --- p.23 === Chapter 3 --- Components for Predicting the Performance of Speech Recog- nition Task --- p.24 === Chapter 3.1 --- Components of Speech Recognizer --- p.25 === Chapter 3.2 --- Word Similarity Measure --- p.27 === Chapter 3.2.1 --- Universal Phoneme Symbol (UPS) --- p.30 === Chapter 3.2.2 --- Definition of Phonetic Distance --- p.31 === Chapter 3.2.3 --- Definition of Word Pair Phonetic Distance --- p.45 === Chapter 3.2.4 --- Definition of Word Similarity Measure --- p.47 === Chapter 3.3 --- Word Occurrence Measure --- p.62 === Chapter 3.4 --- Chapter Summary --- p.64 === Chapter 4 --- Formulation of Recognition Error Predictive Index (REPI) --- p.65 === Chapter 4.1 --- Formulation of Recognition Error Predictive Index (REPI) --- p.66 === Chapter 4.2 --- Characteristics of Recognition Error Predictive Index (REPI) --- p.74 === Chapter 4.2.1 --- Weakness of Ideal Speech Decoding Difficulty (ISDD) --- p.75 === Chapter 4.2.2 --- Advantages of Recognition Error Predictive Index (REPI) --- p.79 === Chapter 4.3 --- Chapter Summary --- p.82 === Chapter 5 --- Experimental Design and Setup --- p.83 === Chapter 5.1 --- Objectives --- p.83 === Chapter 5.2 --- Experiments Preparation --- p.84 === Chapter 5.2.1 --- Speech Corpus and Speech Recognizers --- p.85 === Chapter 5.2.2 --- Speech Recognition Tasks --- p.93 === Chapter 5.2.3 --- Evaluation Criterion --- p.98 === Chapter 5.3 --- Experiment Categories and their Setup --- p.99 === Chapter 5.3.1 --- Experiment Category 1 一 Investigating and comparing the overall prediction performance of the two predictive indices --- p.102 === Chapter 5.3.2 --- Experiment Category 2 一 Comparing the applicability of the word similarity measures of the two predictive indices on predicting the recognition performance --- p.104 === Chapter 5.3.3 --- Experiment Category 3 - Comparing the applicability of the formulation method of the two predictive indices on predicting the recognition performance --- p.107 === Chapter 5.3.4 --- Experiment Category 4 一 Comparing the performance of different phonetic distance definitions --- p.109 === Chapter 5.4 --- Chapter Summary --- p.111 === Chapter 6 --- Experimental Results and Analysis --- p.112 === Chapter 6.1 --- Experimental Results and Analysis --- p.113 === Chapter 6.1.1 --- Experiment Category 1 - Investigating and comparing the overall prediction performance of the two predictive indices --- p.113 === Chapter 6.1.2 --- Experiment Category 2- Comparing the applicability of the word similarity measures of the two predictive indices on predicting the recognition performance --- p.117 === Chapter 6.1.3 --- Experiment Category 3 一 Comparing the applicability of the formulation method of the two predictive indices on predicting the recognition performance --- p.124 === Chapter 6.1.4 --- Experiment Category 4 - Comparing the performance of different phonetic distance definitions --- p.131 === Chapter 6.2 --- Experimental Summary --- p.137 === Chapter 6.3 --- Chapter Summary --- p.141 === Chapter 7 --- Conclusions --- p.142 === Chapter 7.1 --- Contributions --- p.144 === Chapter 7.2 --- Future Directions --- p.145 === Bibliography --- p.147 === Chapter A --- Table of Universal Phoneme Symbol --- p.153 === Chapter B --- Vocabulary Lists --- p.157 === Chapter C --- Experimental Results of Two-words Speech Recognition Tasks --- p.171 === Chapter D --- Experimental Results of Three-words Speech Recognition Tasks --- p.180 === Chapter E --- Significance Testing --- p.190 === Chapter E.1 --- Procedures of Significance Testing --- p.190 === Chapter E.2 --- Results of the Significance Testing --- p.191 === Chapter E.2.1 --- Experiment Category 1 --- p.191 === Chapter E.2.2 --- Experiment Category 2 --- p.192 === Chapter E.2.3 --- Experiment Category 3 --- p.194 === Chapter E.2.4 --- Experiment Category 4 --- p.196 === Chapter F --- Linear Regression Models --- p.197