Recidivism, and the Failure of AUC

On average, 40% - 50% of convicted criminals in the U.S. go on to commit another crime (“recidivate”) after they are released.  For nearly 20 years, court systems have used statistical and machine learning algorithms to predict the probability of recidivism, and to guide sentencing…

Comments Off on Recidivism, and the Failure of AUC

Endpoint or Outcome (example: Covid-19 vaccine)

In a randomized experiment, the endpoint or outcome is a formal measure (statistic) of the result of the experiment.  In a randomized clinical trial preparatory to regulatory submission, there is often more than one outcome, due to the time and expense involved in conducting a…

Comments Off on Endpoint or Outcome (example: Covid-19 vaccine)

Aug 4: Statistics in Practice

In this week’s brief, we feature a data-detective story: The Case of the Faulty Generator.  Our spotlight is on our Analytics for Data Science certificate program*. See you in class! *Earn a Bachelor’s Degree in Data Science and Analytics concurrently at Thomas Edison State University.…

Comments Off on Aug 4: Statistics in Practice

Link Function

In generalized linear models, a link function maps a nonlinear relationship to a linear one so that a linear model can be fit (and then mapped to the original form).  For example, in logistic regression, we want to find the probability of success:  P(Y =…

Comments Off on Link Function

Sira-Kvina Hydro Power –The Case of the Faulty Generator

Prepared by Peter Bruce, Mark Smith and Ramon Perez, this case study was originally published at elderresearch.com.   In early 2020, Sira-Kvina Kraftselskap, a large producer of hydroelectric power in Norway, suffered a breakdownof one of its major generators. Company technicians went through established diagnostics…

Comments Off on Sira-Kvina Hydro Power –The Case of the Faulty Generator
Close Menu