Fredagskollokvium: Machine Learning techniques applied to Astronomy: The Merging Systems Identification Algorithm

Martin de los Rios, The ICTP South American Institute for Fundamental Research

photo portrait of a young man, brown hair, blue eyes

Martin de los Rios, postdoctoral fellow at the International Center for Theoretical Physics South American Institute for fundamental research.

Machine Learning techniques are one of the most promising tools for analyzing big datasets and will be essential for the studies of the next generation of surveys (LSST, SKA, etc.). These methods are very useful and powerful tools to find patterns and relations between the variables that are involved in a specific problem.

In the first part of the seminar, I will give a brief introduction to Machine Learning techniques focusing on supervised learning.

Then I will present an overview of some of the most important applications of these techniques in Astronomy over the last years.

Finally, I will introduce the MeSsI (Merging Systems Identification) Algorithm ( This software (developed during my PhD in collaboration with Mariano Dominguez, Dante Paz & Manuel Merchan) allows you to identify candidates to merging clusters in an automatic way using a random forest that was trained and testes in cosmological simulations. This software can also be used as a framework for future analysis of interacting systems as it allows to add new statistics as features inside the Machine Learning method.

space, galaxies merging
Artist’s impression of the merging galaxies B14-65666 located 13 billion light years-away. Credits: NAOJ.

Please join via Zoom at

Meeting ID: 652 1881 5496
Passcode: 733620

Attendees will be muted during the colloquium, but will have the
opportunity to ask questions at the end by clicking on the "raise hand”
button (or send a request to me via chat).

Emneord: fredagskollokvium, institute seminar, Machine Learning, galaxy clusters
Publisert 28. mai 2020 10:01 - Sist endret 2. mars 2021 10:32