| 摘要 | 第5-6页 |
| Abstract | 第6-7页 |
| Contents | 第8-11页 |
| Abbreviations | 第11-12页 |
| List of Tables | 第12-13页 |
| List of Figures | 第13-15页 |
| Chapter 1 Introduction | 第15-21页 |
| 1.1 Research background | 第15-17页 |
| 1.2 Objectives and significance of the study | 第17页 |
| 1.3 Rationale behind the research | 第17-19页 |
| 1.4 Outline of the thesis | 第19-21页 |
| Chapter 2 Literature Review | 第21-29页 |
| 2.1 Studies about English modal verbs | 第21-22页 |
| 2.1.1 Linguistic studies on English modal verbs | 第21-22页 |
| 2.1.2 Studies of English modal verbs in natural language processing | 第22页 |
| 2.2 Studies about word sense disambiguation | 第22-25页 |
| 2.2.1 Studies on word sense disambiguation abroad | 第23-24页 |
| 2.2.2 Studies on word sense disambiguation at home | 第24-25页 |
| 2.3 Previous studies on formal concept analysis | 第25-26页 |
| 2.4 Space for this study | 第26-29页 |
| Chapter 3 Methodology and Data Collection | 第29-35页 |
| 3.1 Research method | 第29-30页 |
| 3.2 Data collection | 第30-32页 |
| 3.3 Software used in the study | 第32-33页 |
| 3.4 Procedures of the study | 第33-35页 |
| Chapter 4 Semantic Categorization of English Modal Verb Might | 第35-41页 |
| 4.1 Reasons for choosing might as research object | 第35-36页 |
| 4.2 Sense categorization of might | 第36-40页 |
| 4.2.1 Sense categorization according to Coates | 第36-37页 |
| 4.2.2 Sense definitions in dictionaries | 第37-38页 |
| 4.2.3 Sense classification of English modal verb might | 第38-40页 |
| 4.3 Summary | 第40-41页 |
| Chapter 5 Construction of the Fine-grain Word Sense Disambiguation Model of English Modal Verb Might | 第41-77页 |
| 5.1 General description of construction of word sense disambiguation model | 第41-42页 |
| 5.2 Manual tagging of the corpus | 第42-43页 |
| 5.3 Construction of one training set and two testing sets | 第43-44页 |
| 5.4 Feature selection from the context | 第44-50页 |
| 5.4.1 Brief introduction of context | 第45页 |
| 5.4.2 Selection of contextual features | 第45-50页 |
| 5.5 Vectorization of linguistic features | 第50-53页 |
| 5.6 Interval division of the mutual information values | 第53-63页 |
| 5.7 Construction of the first word sense disambiguation model | 第63-67页 |
| 5.7.1 Formation of formal context | 第63-65页 |
| 5.7.2 Generation of SPOAD for the training set | 第65页 |
| 5.7.3 Accuracy of the first model | 第65-67页 |
| 5.8 Construction of the second word sense disambiguation model | 第67-69页 |
| 5.9 Rule extraction according to the second model | 第69-75页 |
| 5.10 Summary | 第75-77页 |
| Chapter 6 Interactive Relations of Contextual Features | 第77-89页 |
| 6.1 Semantic intension and extension of English modal verb might | 第77-86页 |
| 6.1.1 Observation of layer distribution | 第77-84页 |
| 6.1.2 Extension and intension of senses of might | 第84-86页 |
| 6.2 Patterns of interactive relations of contextual features | 第86-87页 |
| 6.3 Summary | 第87-89页 |
| Chapter 7 Conclusion | 第89-93页 |
| 7.1 Main findings | 第89-90页 |
| 7.2 The implications | 第90页 |
| 7.3 Limitations and suggestions for further study | 第90-93页 |
| References | 第93-99页 |
| Appendix I | 第99-171页 |
| Appendix II | 第171-173页 |
| Acknowledgements | 第173-175页 |
| 作者简介 | 第175页 |
