1. Introduction  
1.1. Brief Knowledge  
1.2. The Development of WSI Analysis Using ANN  
1.3. Motivation of This Review  
1.4. Structure of This Review  
2. Common ANNs Methods  
3. Datasets and Evaluation Methods  
3.1. Publicly Available Datasets about WSI  
3.2. Evaluation Method  
3.3. Summary  
4. Traditional Neural Network Method  
5. Deep Neural Network Method  
5.1. Segmentation Methods  
5.2. Classification Methods  
5.3. Detection Methods  
5.4. Other Deep Learning Methods  
6. Methodology Analysis  
7. Potential Methods for WSI  
7.1. Attention Mechanism  
7.2. Visual Transformer  
7.3. Other Potential Methods Applied to WSI Technology  
8. Conclusions and Future Work