1. Introduction

2. Background
2.1. Graph Theoretical Notation of the Network
2.2. Community Detection
2.3. Community Detection Techniques

3. Methodology
3.1. Data Collection
3.3. CiteSpace: an Overview

4. Results and Discussion
4.1. Author Collaborative Network Analysis
4.2. Author Co-Citation Network Analysis
4.3. Journal Co-Citation Network Analysis
4.4. Document Co-Citation Network Analysis
4.5. Collaborative Country Network Analysis
4.6. Collaborative Institution Network Analysis

5. Summary of the Results

6. Conclusion