Overview
Syllabus
Intro
the ACDM view of the Universe
the Large Synoptic Survey Telescope
what does it look like?
the challenge for modern surveys
example of application: gravitational time delays
automated lens searches: Ring Finder (Gavazzi et al. 2014)
Conventional Convolutional Neural Network
Bottleneck residual units
Pre-activation ResNet
I performance on simulations
Euclid strong lens finding challenge
impact of galaxy morphology
Auto-Encoding Variational Bayes (Kingma & Welling 2014)
recognition model and variational lower bound
the reparameterization trick
Conditional Variational AutoEncoder (CVAE)
testing the conditional generation
morphological statistics
take away message
intrinsic alignment of galaxies
hydrodynamical simulations
inpainting intrinsic aligments on Nbody simulations
spectral theory on graphs
spectral graph convolutions
Graph Convolutional Networks (Kipf & Welling 2017)
results on the galaxy inpainting problem
conclusion
Taught by
Alan Turing Institute