Release CosmoH2G dataset on Hugging Face

Hi @Hong-xiang-cv 🤗

I'm Niels and work as part of the open-source team at Hugging Face. I discovered your work through Hugging Face Daily Papers: https://huggingface.co/papers/2609.07498
The paper page lets people discuss about your paper and lets them find artifacts about it (your dataset for instance),
you can also claim the paper as yours which will show up on your public profile at HF, add Github and project page URLs.

I noticed on your project page that the CosmoH2G dataset and code are coming soon. Would you like to host the dataset on Hugging Face when it is released?
Hosting on Hugging Face will give you more visibility and enable better discoverability. People will be able to do:

```python
from datasets import load_dataset

dataset = load_dataset("your-hf-org-or-username/cosmoh2g")
```

If you're interested, a guide is available here: https://huggingface.co/docs/datasets/loading.
We also support Webdataset, which can be useful for large video or point cloud datasets: https://huggingface.co/docs/datasets/en/loading#webdataset.

Besides that, the [dataset viewer](https://huggingface.co/docs/hub/en/datasets-viewer) allows people to quickly explore the first few rows in the browser. After uploading, we can also link the dataset to the paper page (see [linking a paper](https://huggingface.co/docs/hub/en/model-cards#linking-a-paper)) so people can discover your work easily.

Let me know if you're interested or need any guidance—I'd be happy to help!

Kind regards,

Niels
ML Engineer @ HF 🤗

Start with the CosmoH2G project page and the linked Hugging Face Datasets loading, WebDataset, dataset viewer, and paper-linking guidance. Clarify whether the dataset is ready for release and what artifact should be hosted; done means the dataset is available on Hugging Face and linked to the paper page.

Written by the indexing model from the issue text.