Instituto de Física y Astronomía

January 26, 2015. IFA  News

On January 15  Dr. Pavlos Protopapas from the U. of Harvard visited the Instituto de Física y Astronomía to share developments in his work. Dr. Protopapas, world expert on "time domain astrophysics" gave a Seminar on his ambitious project for "classifying everything everywhere in the Universe"  in Sala 11-A of the Facultad de Ciencias of our University. This event was attended by professors and exchange students  for the U. de Chile, PUC and Harvard, program which the  Universidad de Valparaiso hopes to join in the near future. More details on the Seminar:

"Classifying everything in the sky", Dr. Pavlos Protopapas, Harvard School of Engineering and Applied Sciences.

Abstract: In this talk I will present an ambitious goal of classifying all observed objects in the sky. In order to do so, we have been building the necessary methodologies and tools. This is multidisciplinary effort requires knowledge from astronomy, machine learning, statistics, signal processing, data management and software engineering. I will present the efforts of Phase1 that for now only includes mainly optical and time information (lightcurves). We are building classifiers that can deal with uncertain features, building efficient ensemble classifiers, using deep networks for feature extraction, period determination, outlier detection, imputing missing data, sequential learning for follow up recommendation etc.[Enero 26, 2015]