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Partial data from SimXRD (the original dataset is too large to be shared on Hugging Face). Sample data provided for reviewers.
# 1. Point to a local or remote Croissant file
import mlcroissant as mlc
url = "https://huggingface.co/datasets/caobin/SimXRDreview/raw/main/simxrd_croissant.json"
# 2. Inspect metadata
dataset_info = mlc.Dataset(url).metadata.to_json
print(dataset_info)
from dataset.parse import load_dataset,bar_progress # defined in our github : https://github.com/compasszzn/XRDBench/blob/main/dataset/parse.py
for file_info in dataset_info['distribution']:
wget.download(file_info['contentUrl'], './', bar=bar_progress)
# 3. Use Croissant dataset in your ML workload
train_loader = DataLoader(load_dataset(name='train.tfrecord'), batch_size=args.batch_size, shuffle=True, num_workers=args.num_workers)
val_loader = DataLoader(load_dataset(name='val.tfrecord'), batch_size=args.batch_size, shuffle=True, num_workers=args.num_workers,drop_last=False)
test_loader = DataLoader(load_dataset(name='test.tfrecord'), batch_size=args.batch_size, shuffle=False, num_workers=args.num_workers,drop_last=False)
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