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FAIR Universe - NeurIPS 2025 Weak Lensing Uncertainty Challenge

This dataset is a HF mirror of the official challenge training data for this challenge:

https://www.codabench.org/competitions/8934/

To ease the split along the nuisance parameter axis, the dataset challenge has been reordered as

ncosmo, np, ... -> np, ncosmo, ... 

To get started:

import datasets

dset = datasets.load_dataset("cosmostat/neurips-wl-challenge")
dset = dset.with_format('torch')

example = dset['train'][0]
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