Completing the Results of the 2013 Boston Marathon
Flashback to the 2013 Boston Marathon. It was a beautiful day; the runners were nearing completion of an exhausting 26-mile run when suddenly two bombs detonated near the finish line, resulting in three deaths and several hundred injuries. Over 6,000 runners were unable to finish the race after this horrific incident.
We were approached by the marathon's organizers, the Boston Athletic Association (BAA), and asked to recommend a procedure for projecting finish times for the runners who could not complete the race. With assistance from the BAA... Read more about Biostats: Francesca Dominici & Matthew Cefalu
Feature allocations, probability functions, and paintboxes
The problem of inferring a clustering of a data set has been the subject of much research in Bayesian analysis, and there currently exists a solid mathematical foundation for Bayesian approaches to clustering. In particular, the class of probability distributions over partitions of a data set has been characterized in a number of ways, including via exchangeable partition probability functions (EPPFs) and the Kingman paintbox. Here, we develop a generalization of the clustering problem, called feature allocation, where we allow each... Read more about MachineLearn: Tamara Broderick