Engineering Explainer

Uncertainty

Calibration, confidence, and knowing how much to trust a model.

Quant + trading

VaR for the day you can't sell

A portfolio can look safe on a return basis and still become extraordinarily expensive to exit. Illiquidity-at-Risk gives that danger its own tail-risk number — and finds it spikes in ways continuous models miss entirely.

arXiv:2609.00943

Uncertainty

The error bars on rain are lying to you

Traditional weather uncertainty methods claim ninety percent confidence on rainfall but catch the truth only a third of the time. A distribution-free fix lands where forecasting begins.

arXiv:2606.27001