An Improved Method for Cross-Project Defect Prediction by Simplifying Training Data

Table 3

The mappings between different values and their effectiveness levels.

Effect size	d
Very small	0.01	0.008
Small	0.20	0.147
Medium	0.50	0.33
Large	0.80	0.474
Very large	1.20	0.622
Huge	2.0	0.811