Possible duplicated SDSS files in Zenodo dataset

Hi, thank you for releasing DeepAstroUDA.

I am trying to reproduce the SDSS → DECaLS experiment from the paper, but I noticed several issues regarding the released SDSS dataset on Zenodo.

Specifically:

1`sdss_1.h5` and `sdss_2.h5` appear to be completely identical (same MD5 hash).
2 The class distributions seem inconsistent with the paper description. For example, one class contains only a few dozen samples, while the paper mentions that most classes should contain 1k–2.6k images, with the smallest class containing 334 images.
3 The paper describes the gravitational lens class as a target-only unknown class, but the released source-domain data appears to contain all 10 classes.

Because of this, I am unsure whether:

1. the uploaded SDSS files are duplicated accidentally,
2. the released dataset is only a reduced/demo subset,
3. or some preprocessing/splitting step is missing from the repository.

Could you clarify which dataset should be used for reproducing the SDSS → DECaLS experiment, or whether the full source-domain dataset is available somewhere else?

Thank you very much.