Qin Chao. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references (leaves 77-82). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Overview of Speaker Authentication --- p.1 / Chapter 1.2 --- Goals of this Research --- p.6 / Chapter 1.3 --- Thesis Outline --- p.7 / Chapter 2 --- Speaker Verification --- p.8 / Chapter 2.1 --- Introduction --- p.8 / Chapter 2.2 --- Front-End Processing --- p.9 / Chapter 2.2.1 --- Acoustic Feature Extraction --- p.10 / Chapter 2.2.2 --- Endpoint Detection --- p.12 / Chapter 2.3 --- Speaker Modeling --- p.12 / Chapter 2.3.1 --- Likelihood Ratio Test for Speaker Verification --- p.13 / Chapter 2.3.2 --- Gaussian Mixture Models --- p.15 / Chapter 2.3.3 --- UBM Adaptation --- p.16 / Chapter 2.4 --- Experiments on Cantonese Speaker Verification --- p.18 / Chapter 2.4.1 --- Speech Databases --- p.19 / Chapter 2.4.2 --- Effect of Endpoint Detection --- p.21 / Chapter 2.4.3 --- Comparison of the UBM Adaptation and the Cohort Method --- p.22 / Chapter 2.4.4 --- Discussions --- p.25 / Chapter 2.5 --- Summary --- p.26 / Chapter 3 --- Verbal Information Verification --- p.28 / Chapter 3.1 --- Introduction --- p.28 / Chapter 3.2 --- Utterance Verification for VIV --- p.29 / Chapter 3.2.1 --- Forced Alignment --- p.30 / Chapter 3.2.2 --- Subword Hypothesis Test --- p.30 / Chapter 3.2.3 --- Confidence Measure --- p.31 / Chapter 3.3 --- Sequential Utterance Verification for VIV --- p.34 / Chapter 3.3.1 --- Practical Security Consideration --- p.34 / Chapter 3.3.2 --- Robust Interval --- p.34 / Chapter 3.4 --- Application and Further Improvement --- p.36 / Chapter 3.5 --- Summary --- p.36 / Chapter 4 --- Model Design for Cantonese Verbal Information Verification --- p.37 / Chapter 4.1 --- General Considerations --- p.37 / Chapter 4.2 --- The Cantonese Dialect --- p.37 / Chapter 4.3 --- Target Model Design --- p.38 / Chapter 4.4 --- Anti-Model Design --- p.38 / Chapter 4.4.1 --- Role of Normalization Techniques --- p.38 / Chapter 4.4.2 --- Context-dependent versus Context-independent Antimodels --- p.40 / Chapter 4.4.3 --- General Approach to CI Anti-modeling --- p.40 / Chapter 4.4.4 --- Sub-syllable Clustering --- p.41 / Chapter 4.4.5 --- Cohort and World Anti-models --- p.42 / Chapter 4.4.6 --- GMM-based Anti-models --- p.44 / Chapter 4.5 --- Simulation Results and Discussions --- p.45 / Chapter 4.5.1 --- Speech Databases --- p.45 / Chapter 4.5.2 --- Effect of Model Complexity --- p.46 / Chapter 4.5.3 --- Comparisons among different Anti-models --- p.47 / Chapter 4.5.4 --- Discussions --- p.48 / Chapter 4.6 --- Summary --- p.49 / Chapter 5 --- Integration of SV and VIV --- p.50 / Chapter 5.1 --- Introduction --- p.50 / Chapter 5.2 --- Voting Method --- p.53 / Chapter 5.2.1 --- Permissive Test vs. Restrictive Test --- p.54 / Chapter 5.2.2 --- Shared vs. Speaker-specific Thresholds --- p.55 / Chapter 5.3 --- Support Vector Machines --- p.56 / Chapter 5.4 --- Gaussian-based Classifier --- p.59 / Chapter 5.5 --- Simulation Results and Discussions --- p.60 / Chapter 5.5.1 --- Voting Method --- p.60 / Chapter 5.5.2 --- Support Vector Machines --- p.63 / Chapter 5.5.3 --- Gaussian-based Classifier --- p.64 / Chapter 5.5.4 --- Discussions --- p.66 / Chapter 5.6 --- Summary --- p.67 / Chapter 6 --- Conclusions and Suggested Future Works --- p.68 / Chapter 6.1 --- Conclusions --- p.68 / Chapter 6.2 --- Summary of Findings and Contributions of This Thesis --- p.70 / Chapter 6.3 --- Future Perspective --- p.71 / Chapter 6.3.1 --- Integration of Keyword Spotting into VIV --- p.71 / Chapter 6.3.2 --- Integration of Prosodic Information --- p.71 / Appendices --- p.73 / Chapter A --- A Cantonese VIV Demonstration System --- p.73 / Bibliography --- p.77
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_325194 |
| Date | January 2005 |
| Contributors | Qin, Chao., Chinese University of Hong Kong Graduate School. Division of Electronic Engineering. |
| Source Sets | The Chinese University of Hong Kong |
| Language | English, Chinese |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, xii, 82 leaves : ill. ; 30 cm. |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
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