Table 4 The proportion between classes in the IDT preprocessing stages
From: A framework to improve churn prediction performance in retail banking
Stage | Total customers | Churned | Retained |
|---|---|---|---|
Original set | 3,283,332 (100.00%) | 73,798 (2.25%) | 3,209,534 (97.75%) |
After IDT-Over ADASYN | 3,298,107 (100.45%) | 88,573 (2.70%) | 3,209,534 (97.75%) |
After IDT-Over ADASYN+ IDT-Under NEARMISS | 177.146 (5.40%) | 88,573 (2.70%) | 88,573 (2.70%) |