Glossary · Reliability, calibration, and statistics
VaR / CVaR
Tail-risk functionals: the α-quantile of a loss, and the expected loss beyond it. Useful when severe outcomes matter more than the mean.
Defined in
Handbook · InstrumentAggregation geometryWeighted means assume strengths can offset weaknesses; gates assert some failures are fatal. How criteria combine is a normative decision, so make it explicitly.Where it comes up
- Rare-event assuranceHandbook · Validation
- Notation and formula cardHandbook · Reference