Seminar on three linked problems of the synoptic-survey era: classifying the zoo of variable stars and transients, recognizing fast new events with little human involvement, and deciding when to spend scarce follow-up, illustrated with the Palomar Transient Factory's discovery of SN 2011fe.
A 2pm seminar in the Rose Center's Perkin Room, listed with its abstract on the department's public calendar (linked above), two hours after his talk at Columbia.