1 Introduction  
2 Classification of SSC  
3 CSSC  
3.1 Separated Feature Weighting Algorithms  
3.2 Coupled Feature Weighting Algorithms  
3.3 Simulation on the Toy Dataset  
4 ISSC  
4.1 ISSC based on Multi-weighting K-means  
4.2 ISSC based on Multi-weighting FCM  
4.3 Probability Mixture Model based ISSC  
4.4 ISSC based on Other Models  
4.5 Simulation on the Toy Dataset  
5 XSSC  
5.1 Between-cluster Separation  
5.2 Evolutionary Learning  
5.3 Adaptive Metric  
5.4 Ensemble Learning  
5.5 Multi-view Learning  
5.6 Imbalanced Clusters  
5.7 Subspace Extraction in the Transformed Feature Space  
5.8 Other XSSC Algorithms  
5.9 Simulation on the Toy Dataset  
6 Model Complexity  
7 Experimental Validation  
8 Conclusions