ML for Scientists: L12

 

Carol(ina) Cuesta-Lazaro

This week in AI4Science

Autoregressive in Frequency

["CosmoFlow: Scale-Aware Representation Learning for Cosmology with Flow Matching" Kannan, Qiu, Cuesta-Lazaro, Jeong (in prep)]

Mean relative velocity

k Nearest neighbours

Pair separation

Pair separation

Varying cosmological parameters

Physics as a testing ground: Well-understood summary statistics enable rigorous validation of generative models

Reproducing summary statistics

\mathrm{R} \sim p(\theta|x)
\mathrm{F} \sim \hat{p}(\theta|x)

Real or Fake?

How good is my generative model?

["A Practical Guide to Sample-based Statistical Distances for Evaluating Generative Models in Science" Bischoff et al 2024
arXiv:2403.12636]

Has my model learned the underlying density?

["Generalization in diffusion models arises from geometry-adaptive harmonic representations" Kadkhodaie et al (2024)]

Split training set into non-overlapping

S_1, S_2
https://parti.research.google​​​​​​​

A portrait photo of  a kangaroo wearing an orange hoodie and blue sunglasses standing on the grass in front of the Sydney Opera House holding a sign on the chest that says Welcome Friends!

Money plot - Nov 18th -> Discuss in class Nov 19th

Transformer from scratch - Nov 4th

Nov 5th discuss in class

Interpretability with Sebastian Oct 29th

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By carol cuesta

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