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 first face to face meeting of the REESPECT team.

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.


This meeting will be followed by a traditional workshop on Optimizing spectroscopic samples for Supernova photometric classification.


Clermont-Ferrand is a city and commune of France, in the Auvergne-Rhône-Alpes region, with a population of 141,569 (2012).  It is the prefecture (capital) of the Puy-de-Dôme department and sits on the plain of Limagne in the Massif Central, surrounded by a major industrial area. The city is known for the chain of volcanoes, the Chaîne des Puys surrounding it, including the dormant volcano Puy de Dôme (10 kilometres (6 miles), one of the highest, topped by communications towers, and visible from the city. 

Clermont-Ferrand's most famous public square is Place de Jaude, on which stands a grand statue of Vercingetorix sitting imperiously on a horse and holding a sword. The inscription reads: J'ai pris les armes pour la liberté de tous (I took up arms for the liberty of all). This statue was sculpted by Frédéric Bartholdi, who also created the Statue of Liberty.

The city also hosts the Université Clermont Auvergne (UCA) and the Laboratoire de Physique de Clermont (LPC) with a dynamic type Ia SN astronomy group working on LSST, ZTF, SNFactory and COIN

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



Monday Tuesday Wednesday
9:30h - 10:00h Breakfast Breakfast Breakfast
10:00h - 11:00h Review on previous telecon Evaluation of Monday's goals Report on feature extraction
11:00h - 12:30h Division of tasks Hands-on Reports on metrics and classifiers
12:30h - 14:00h Lunch Lunch Lunch
14:00 - 15:30h Hands-on Hands-on Report on active learning strategies
15:30h-17:00h Hands-on Hands-on Plan for next steps
19:30h-22:00h Group dinner


Emille E. O. Ishida
CNRS/UCA, France

Rafael S. de Souza


U.Lisbon, Portugal

Mi Dai
Rutgers U., USA




CNRS - MOMENTUM 2018-2020

Active Learning for Large Scale Sky Surveys