Datasets:
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README.md
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license: mit
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dataset_info:
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- config_name: full_0
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features:
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- split: test
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path: sub50_66/test-*
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---
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---
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license: mit
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size_categories:
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- 10K<n<100K
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tags:
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- astronomy
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- multimodal
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- classification
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arxiv:
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- arXiv:2411.08842
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dataset_info:
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- config_name: full_0
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features:
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- split: test
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path: sub50_66/test-*
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---
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# AstroM3Dataset
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## Description
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AstroM3Processed is a time-series astronomy dataset containing photometry, spectra, and metadata features for variable stars.
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The dataset includes multiple subsets (`full`, `sub10`, `sub25`, `sub50`) and supports different random seeds (`42`, `66`, `0`, `12`, `123`).
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Each sample consists of:
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- **Photometry**: Light curve data of shape `(N, 9)` (time, flux, flux\_error, amplitude, period, lksl_statistic, rfr_score, mad, delta_t).
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- **Spectra**: Spectra observations of shape `(3, 2575)` (wavelength, flux, flux\_error).
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- **Metadata**: List of metadata values of shape `(34,)`
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- **Label**: The class name as int.
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## Corresponding paper and code
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- Paper: [AstroM<sup>3</sup>: A self-supervised multimodal model for astronomy](https://arxiv.org/abs/2411.08842)
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- Code Repository: [GitHub: AstroM<sup>3</sup>](https://github.com/MeriDK/AstroM3/)
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- Original Data: [MeriDK/AstroM3Dataset](https://huggingface.co/datasets/MeriDK/AstroM3Dataset/)
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## Subsets and Seeds
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AstroM3Dataset is available in different subset sizes:
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- `full`: Entire dataset
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- `sub50`: 50% subset
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- `sub25`: 25% subset
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- `sub10`: 10% subset
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Each subset is sampled from the respective train, validation, and test splits of the full dataset.
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For reproducibility, each subset is provided with different random seeds:
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- `42`, `66`, `0`, `12`, `123`
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## Usage
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To load the dataset using the Hugging Face `datasets` library, specify the name in the format "{subset}_{seed}". For example:
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```python
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from datasets import load_dataset
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# Load the full dataset with seed 42
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dataset = load_dataset("MeriDK/AstroM3Processed", name="full_42")
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# Load the 25% subset sampled using seed 123
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dataset = load_dataset("MeriDK/AstroM3Processed", name="sub25_123")
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```
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---
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## Citation
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🤗 If you find this dataset usefull, please cite our paper 🤗
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```bibtex
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@article{rizhko2024astrom,
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title={AstroM $\^{} 3$: A self-supervised multimodal model for astronomy},
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author={Rizhko, Mariia and Bloom, Joshua S},
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journal={arXiv preprint arXiv:2411.08842},
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year={2024}
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}
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```
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