Simulation-based inference with Swyft

Europe/Amsterdam
B0.203 (University of Amsterdam)

B0.203

University of Amsterdam

Science Park 904 1098XH Amsterdam
Christoph Weniger (University of Amsterdam), James Alvey (University of Amsterdam), Noemi Anau Montel (GRAPPA)
Description

Objective

The goal of this in-person workshop is to make progress in tackling the most difficult* parameter inference problems using state-of-the-art simulation-based inference techniques as implemented in Swyft**.

*Difficult = slow simulator/model; dozens, thousands or millions of parameters; complex posterior; unknown optimal summary statistics; ...

**Swyft is a pytorch-lightning-based implementation of truncated marginal neural ratio estimation (TMNRE), which is now successfully used for a diverse set of inference problems.

 

Swyft in action

Further information

The workshop is planned to be in-person. If you are interested to join online, please let us know. Depending on demand, we might change part of the workshop to a hybrid version.


 

Participants
    • 09:00 10:30
      Lecture session: Precision 1 - Sequential inference, truncation & the typical set
    • 10:30 11:20
      Crash-course session
    • 11:20 11:40
      Coffe break 20m
    • 11:40 12:30
      Existing applications
      Convener: Noemi Anau Montel (GRAPPA)
    • 12:30 14:00
      Lunch break 1h 30m
    • 14:00 14:25
      Method session
      Convener: James Alvey (University of Amsterdam)
      • 14:00
        Diffusion models and N-body simulations 25m
        Speaker: Camila Correa (UvA)
    • 14:25 14:50
      New applications
      Convener: James Alvey (University of Amsterdam)
      • 14:25
        Current Nested Sampling methods for Gravitational Lens Modelling 25m
        Speaker: Samuel Lange (Durham University)
    • 14:50 15:15
      Existing applications
      Convener: James Alvey (University of Amsterdam)
    • 15:15 15:45
      Coffee break 30m
    • 15:45 16:10
      New applications
      Convener: Camila Correa (UvA)
      • 15:45
        Shedding light on low-mass subhalo survival and annihilation luminosity with numerical simulations 25m
        Speaker: Alejandra Aguirre-Santaella (Instituto de Física Teórica UAM-CSIC)
    • 16:10 16:35
      Existing applications
      Convener: Camila Correa (UvA)
      • 16:10
        GW parameter inference with Swyft 25m
        Speaker: Uddipta Bhardwaj (GRAPPA, University of Amsterdam)
    • 16:35 17:30
      Discussion session
    • 09:00 10:30
      Lecture session: Precision 2 - Network architectures, noise resampling
    • 10:30 11:20
      Crash-course session
    • 11:20 11:40
      Coffe Break 20m
    • 11:40 12:05
      Method session
      Convener: Will Handley (University Of Cambridge)
    • 12:05 12:30
      Existing applications
      Convener: Will Handley (University Of Cambridge)
      • 12:05
        SN Ia cosmology with TMNRE 25m
        Speaker: Konstantin Karchev (SISSA / GRAPPA)
    • 12:30 14:00
      Lunch break 1h 30m
    • 14:00 14:50
      New applications
      Convener: Guillermo Franco Abellán (Gravitation AstroParticle Physics Amsterdam)
    • 14:50 15:15
      Existing applications
      Convener: Guillermo Franco Abellán (Gravitation AstroParticle Physics Amsterdam)
    • 15:15 15:45
      Coffee break 30m
    • 15:45 16:10
      New applications
      Convener: Guillermo Franco Abellán (Gravitation AstroParticle Physics Amsterdam)
      • 15:45
        Simulation-based inference for axions at colliders 25m
        Speaker: Alessandro Morandini (KIT, IAP)
    • 16:10 17:30
      Discussion session
    • 19:00 22:00
      Workshop dinner 3h
    • 09:00 09:50
      Method session
      Convener: Christopher Eckner (LAPP, CNRS)
    • 09:50 10:50
      New applications
      Convener: Christopher Eckner (LAPP, CNRS)
      • 09:50
        The future of cosmology with Euclid: hopes & challenges 1h
        Speakers: Guadalupe Cañas-Herrera (European Space Research and Technology Centre/European Space Agency), Matteo Martinelli (INAF - Osservatorio Astronomico di Roma), Stéphane Ilic (IJCLab, Orsay, France)
    • 10:50 11:30
      Discussion session
    • 11:30 11:50
      Coffee break 20m
    • 11:50 12:30
      Discussion session: Outlook
    • 12:30 14:00
      Lunch break 1h 30m