Chapter 9 System Diagnosis and Quality Checks for A/B Tests
9.1 System Validation using A/A Test
9.2 Sample Ratio Mismatch
9.3 Trigger and Filter Condition
9.4 Interaction Detection
9.5 Metric Denominator Mismatch
- Diagnosis
- AA test and retroAA test,
- p-value should be uniform!
- Check performance balance!
- SRM, common reason
- Linkedin and Yahoo! both published paper, also our own papers
- trigger condition issue
- Check metric distribution, outlier
- MDM
- Trigger and filter compliment
- Interaction detection
- AA test and retroAA test,