| 摘要 | 第1-6页 |
| ABSTRACT | 第6-7页 |
| List of tables | 第7-8页 |
| List of figures | 第8-11页 |
| Chapter 1 Introduction | 第11-16页 |
| ·Research background | 第11-12页 |
| ·Significance of the research | 第12-13页 |
| ·The purpose of the study | 第13-14页 |
| ·The layout of the thesis | 第14-16页 |
| Chapter 2 Literature review | 第16-36页 |
| ·A short history of the study of collocation | 第16-20页 |
| ·Collocation studies in the 1950s | 第16-17页 |
| ·Collocation studies in the 1960s | 第17-18页 |
| ·Collocation studies in the 1970s | 第18-19页 |
| ·Collocation studies from 1980s till now | 第19-20页 |
| ·The notion of collocation | 第20-23页 |
| ·Definition of collocation by different scholars | 第20-22页 |
| ·The working definition of collocation in this study | 第22-23页 |
| ·Characteristics and properties of collocation | 第23-27页 |
| ·Typical features of collocation | 第23-24页 |
| ·Properties and functions of collocation | 第24-25页 |
| ·Linguistic subclasses of collocation | 第25-27页 |
| ·Previous Studies on collocation Extraction | 第27-36页 |
| ·Corpus-based approaches to collocation extraction | 第27-29页 |
| ·Algorithms used for collocation extraction | 第29-36页 |
| ·Mutual Information | 第29-30页 |
| ·Hypothesis Testing | 第30-36页 |
| Chapter 3 Research Methodology | 第36-42页 |
| ·The Corpora used in this study | 第36-37页 |
| ·An introduction to BNC corpus | 第36页 |
| ·The sub-corpora of BNC | 第36-37页 |
| ·The sub-corpora of different registers | 第36-37页 |
| ·The sub-corpora of different sizes | 第37页 |
| ·Tools for data collection | 第37-38页 |
| ·Procedures for data collection and data analysis | 第38-42页 |
| ·Tokenization | 第38页 |
| ·Lemmatization | 第38-39页 |
| ·Extraction of Bigrams and collocations | 第39页 |
| ·Evaluation of the extraction efficiency | 第39-42页 |
| Chapter 4 Data Analysis and Discussion | 第42-60页 |
| ·Extraction results from corpus of different registers | 第42-49页 |
| ·Comparison of the precision values | 第42-45页 |
| ·Comparison of the recall value | 第45-47页 |
| ·Detailed comparison of the extraction efficiency for corpus ofdifferent registers | 第47-49页 |
| ·Extraction results from corpus of different sizes | 第49-58页 |
| ·Comparison of the precision values | 第49-53页 |
| ·Comparison of the recall values | 第53-55页 |
| ·Detailed comparison of the extraction efficiency for corpus ofdifferent sizes | 第55-58页 |
| ·Discussion | 第58-60页 |
| Chapter 5 Conclusion | 第60-62页 |
| ·Major Findings | 第60-61页 |
| ·Limitation and suggestions for further study | 第61-62页 |
| Reference | 第62-66页 |
| Appendix | 第66-70页 |
| Acknowledgement | 第70-71页 |
| Resume | 第71页 |
