Crime Prediction Algorithms Aren't Very Good At Predicting Crimes

Some courts in the U.S., particularly in states from California to New Jersey, use crime-predicting algorithms to determine if a defendant is likely to commit another crime in the future. While the software helps judges decide who gets bail, who goes to jail and who can walk away free, it appears the technology isn't very reliable and opens doors to a more unfair justice system. Dartmouth College researchers Julia Dressel and Hany Farid tackled the issue with the so-called risk assessment algorithms in a paper published in Science Advances. The study examined one popular risk-assessment algorithm, called Compas, and pointed out how the software's recidivism predictions are no different from the answers random people give to online surveys. Farid, who teaches computer science at Dartmouth, and Dressel, who majored in computer science and gender studies at the same school, used Amazon Mechanical Turk in the study.