The Cosmostatistics Initiative

The Cosmostatistics Initiative (COIN) is an international network which aims to create an interdisciplinary environment where collaborations between astronomers, statisticians and machine learning experts can flourish. The group utilizes a management model which can find parallel in technological start-ups:  based on a dynamic, non-hierarchical and people-centric approach.

The LSST Dark Energy Science Collaboration


The LSST Dark Energy Science Collaboration (DESC) is an international collaboration  preparing for a variety of cosmological analyses with the Large Synoptic Survey Telescope (LSST) data. In advance of LSST's first observations, DESC will help prepare for LSST science analysis, make synergistic connections with ongoing cosmological surveys and provide the dark energy community with state of the art analysis tools. 



The REcommendation System for SPECTroscopic follow-up (RESSPECT) is a collaboration between COIN and LSST-DESC which aims to adapt active learning strategies for the construction of optimized training samples for supernova photometric classifcation in the context of LSST. 

The team is formed by researchers from both collaborations who are working together in the development of a recommendation system which will enable informed decisions regarding the allocation of spectroscopic follow-up resources and consequent optimized scientific results from purely photometric samples.

This event is the second face to face meeting of the REESPECT team. Information on our fist encounter, which took place in Clermont Ferrand - France, can be found here.

The logistic of this meeting was inspired in the COIN Residence Programs where tasks and discussions are agreed upon by the team before the meeting. There are no scheduled talks or any kind of formal presentation.




Eiffel Tower, Paris - source Wikipedia

Since the 17th century, Paris has been one of Europe's major centres of finance, diplomacy, commerce, fashion, science and the arts. Paris is especially known for its museums and architectural landmarks: the Louvre was among most visited art museums in the world in 2019, with 9.6 million visitors. The historical district along the Seine in the city centre is classified as a UNESCO Heritage Site, and popular landmarks in the city centre included the Cathedral of Notre Dame de Paris, now closed for renovation after the 15 April 2019 fire. Other popular tourist sites include the Gothic royal chapel of Sainte-Chapelle, both on the Île de la Cité; the Eiffel Tower, constructed for the Paris Universal Exposition of 1889; the Grand Palais and Petit Palais, built for the Paris Universal Exposition of 1900; the Arc de Triomphe on the Champs-Élysées, and the Basilica of Sacré-Coeur on the hill of Montmartre.

The city provides a perfect atmosphere for the friendly and comfortable environment required for an inspire COIN-like meeting happening on spring.


Code of Conduct

RESSPECT is composed of members from around the globe with a diverse set of skills, personalities, and experiences. 

We require participants to follow these guidelines which help steer our interactions and strive to keep this an enlightening experience for all members involved.

This event will be a harassment-free environment for everyone, regardless of gender, gender identity and expression, age, sexual orientation, physical appearance, body size, race, ethinicity, religion (or lack thereof) or technology choices.

Participants violating these rules may be sanctioned or expelled from the meetnig at the discretion of the conference organisers.



Behave professionally. Exclusionary or offensive comments or jokes related to personal attributes are not appropriate.

Be receptive to constructive comment and criticism, as the experiences and skill sets of other members contribute to the whole of our efforts.

Be thoughtful when addressing the efforts of others, keeping in mind that often times the labour was completed simply for the good of the group.

Be good and respectful to each other.

This is a strictly non-smoking event. Smoking is not allowed anywhere inside the venue.

Unacceptable behavior includes, but is not limited to, sustained disruption of talks or other events, unwelcome physical contact, sexual attention or innuendo, intimidation, stalking, and recording of an individual without consent.

Communicate appropriately. Aim for a professional audience including people of many different backgrounds. Sexual language and imagery are not acceptable.

based on policies from  COIN Residence Program and LSST DESC



All participants are expected to engage in discussions throughout all sections of the program.

Check-in is obligatory on Sunday, 15 March after 5pm and check-out is expected on Sunday, 22 March before 11am (on exceptional situations -- previously agreed upon with the organizers -- check-out can be scheduled for Saturday, 21 March).

Monday Tuesday Wednesday Thursday Friday Saturday
9:30h - 10:00h Breakfast Breakfast Breakfast Breakfast Breakfast Breakfast
10:00h - 12:00h Review on project status Hands-on Report on current progress Hands-on Report on simulations and fitters Report on Classifiers and AL strategies
12:00h - 14:00h Lunch Lunch Lunch Lunch Lunch Lunch
14:00 - 17:00h Task assignment Hands-on Social program Hands-on Report on Cosmology pipeline Plan paper and code submission
19:30h-22:00h Group dinner





CNRS - MOMENTUM 2018-2020

Active Learning for Large Scale Sky Surveys