Data Science

Why you shouldn’t “hold-out” data in survival-model predictions

When predicting event times in the future, you should include that information in the training data.

Data Science in Mental Health

I review two applications of predictive modeling in mental health, one successful and the other not: identifying school shootings before they happen and prioritizing callers to a crisis hotline.

Record linkage: An Adventure in Graph Theory

How to efficiently standardize names and link observations from different sources using graphs.