CCS Concepts  
• General and reference $\rightarrow$ Surveys and overviews ;  
$\bullet$ Computing methodologies $\rightarrow$ Knowledge representation and reasoning ; Neural networks ; Classification and regression trees .  

ACM Reference Format:  

1 INTRODUCTION  

2 NON-HYBRID: NNs AND DTs COOPERATED APPROACHES  

3 SEMI-HYBRID: NNs LEVERAGING CLASS HIERARCHIES  

4 HYBRID: NEURAL DECISION TREES  

5 ANALYSIS AND PROSPECTS  

6 CONCLUSION