Datasets:
minor update of citation
Browse files- ssl4eo_eu_forest.py +116 -116
ssl4eo_eu_forest.py
CHANGED
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@@ -1,116 +1,116 @@
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import json
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import datasets
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from datasets.utils.file_utils import xopen
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class SSL4EOEUForest(datasets.GeneratorBasedBuilder):
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"""
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Metadata generator for the SSL4EO-EU-Forest dataset, cf. https://huggingface.co/datasets/dm4eo/ssl4eo_eu_forest .
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"""
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def _info(self):
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"""
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Provides details on metadata structure, citation, and credits.
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"""
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return datasets.DatasetInfo(
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description="SSL4EO-EU Forest dataset metadata",
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features=datasets.Features({
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# data sample ID
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"group_id": datasets.Value("string"),
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# relative path (without HuggingFace URL) of forest mask
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"mask_path": datasets.Value("string"),
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# got bounding box in lat-lon coords
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"bbox_epsg4326": datasets.Sequence(datasets.Value("float32")),
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# image dimensions in width and height
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"mask_width": datasets.Value("int32"),
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"mask_height": datasets.Value("int32"),
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# do the above dimensions match for all the images?
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"dimensions_match": datasets.Value("bool"),
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# 12-band Sentinel-2 L2A cloud-free images for all seasons in bounding box
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"images": datasets.Sequence({
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# relative path (without HuggingFace URL) of Sentinel-2 imagery
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"path": datasets.Value("string"),
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# start time for data recording
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"timestamp_start": datasets.Value("string"),
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# end time for data recording
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"timestamp_end": datasets.Value("string"),
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# Sentinel-2 tile ID
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"tile_id": datasets.Value("string"),
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# season in northern hemisphere
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"season": datasets.Value("string"),
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# image dimensions
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"width": datasets.Value("int32"),
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"height": datasets.Value("int32")
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})
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}),
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# which keys refer to (input, output) data for supervised
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supervised_keys=("images", "mask_path"),
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# BibTeX on how to cite this work
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citation="""@misc{ssl4eo_eu_forest,
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author = {
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title = {SSL4EO-EU Forest Dataset},
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year = {2025},
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howpublished = {https://
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note = {This work was carried under the EvoLand project, cf. https://www.evo-land.eu . This project has received funding from the European Union's Horizon Europe research and innovation programme under grant agreement No. 101082130.}
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}""",
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# project homepage
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homepage="https://www.evo-land.eu",
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# data license
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license="CC-BY-4.0",
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)
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def _split_generators(self, dl_manager):
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"""
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Define dataset splits - single "training" split for now.
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"""
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url = f"{dl_manager._base_path}/meta.jsonl"
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return [
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datasets.SplitGenerator(
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name=datasets.Split.TRAIN,
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gen_kwargs={"url": url},
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)
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]
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def _generate_examples(self, url):
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"""
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Streaming-compliant serving of metadata for SSL4EO data samples.
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"""
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with xopen(url, encoding="utf-8") as f:
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for idx, line in enumerate(f):
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yield idx, json.loads(line)
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def features_to_croissant(features):
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"""
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Convert a HF dataset feature into a Croissant-compatible description.
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"""
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def convert_feature(name:str, feature:datasets.features.features.Features):
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if isinstance(feature, datasets.Value):
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return {
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"name": name,
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"dataType": feature.dtype,
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"description": f"{name} field"
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}
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elif isinstance(feature, datasets.Sequence):
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inner = feature.feature
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if isinstance(inner, dict): # nested structure
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return {
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"name": name,
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"isArray": True,
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"description": f"{name} sequence",
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"features": [convert_feature(k, v) for k, v in inner.items()]
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}
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elif isinstance(inner, Value): # flat sequence
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return {
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"name": name,
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"isArray": True,
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"description": f"{name} sequence",
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"dataType": inner.dtype
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}
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else:
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return {
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"name": name,
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"dataType": "unknown",
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"description": f"{name} field"
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}
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return [convert_feature(name, feature) for name, feature in features.items()]
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+
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import json
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import datasets
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from datasets.utils.file_utils import xopen
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+
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class SSL4EOEUForest(datasets.GeneratorBasedBuilder):
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"""
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Metadata generator for the SSL4EO-EU-Forest dataset, cf. https://huggingface.co/datasets/dm4eo/ssl4eo_eu_forest .
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"""
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def _info(self):
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"""
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Provides details on metadata structure, citation, and credits.
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+
"""
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return datasets.DatasetInfo(
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description="SSL4EO-EU Forest dataset metadata",
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features=datasets.Features({
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# data sample ID
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+
"group_id": datasets.Value("string"),
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| 19 |
+
# relative path (without HuggingFace URL) of forest mask
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| 20 |
+
"mask_path": datasets.Value("string"),
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| 21 |
+
# got bounding box in lat-lon coords
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| 22 |
+
"bbox_epsg4326": datasets.Sequence(datasets.Value("float32")),
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+
# image dimensions in width and height
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+
"mask_width": datasets.Value("int32"),
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+
"mask_height": datasets.Value("int32"),
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+
# do the above dimensions match for all the images?
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+
"dimensions_match": datasets.Value("bool"),
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+
# 12-band Sentinel-2 L2A cloud-free images for all seasons in bounding box
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| 29 |
+
"images": datasets.Sequence({
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+
# relative path (without HuggingFace URL) of Sentinel-2 imagery
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+
"path": datasets.Value("string"),
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+
# start time for data recording
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+
"timestamp_start": datasets.Value("string"),
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+
# end time for data recording
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+
"timestamp_end": datasets.Value("string"),
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+
# Sentinel-2 tile ID
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+
"tile_id": datasets.Value("string"),
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+
# season in northern hemisphere
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+
"season": datasets.Value("string"),
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+
# image dimensions
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+
"width": datasets.Value("int32"),
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+
"height": datasets.Value("int32")
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})
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}),
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# which keys refer to (input, output) data for supervised
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supervised_keys=("images", "mask_path"),
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# BibTeX on how to cite this work
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citation="""@misc{ssl4eo_eu_forest,
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author = {Ait Ali Braham, Nassim and Albrecht, Conrad M},
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title = {SSL4EO-EU Forest Dataset},
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year = {2025},
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howpublished = {https://github.com/cmalbrec/ssl4eo_eu_forest},
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note = {This work was carried under the EvoLand project, cf. https://www.evo-land.eu . This project has received funding from the European Union's Horizon Europe research and innovation programme under grant agreement No. 101082130.}
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}""",
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# project homepage
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homepage="https://www.evo-land.eu",
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+
# data license
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license="CC-BY-4.0",
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)
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+
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+
def _split_generators(self, dl_manager):
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+
"""
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+
Define dataset splits - single "training" split for now.
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| 64 |
+
"""
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url = f"{dl_manager._base_path}/meta.jsonl"
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return [
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datasets.SplitGenerator(
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name=datasets.Split.TRAIN,
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gen_kwargs={"url": url},
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)
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]
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+
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def _generate_examples(self, url):
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"""
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+
Streaming-compliant serving of metadata for SSL4EO data samples.
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+
"""
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+
with xopen(url, encoding="utf-8") as f:
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for idx, line in enumerate(f):
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yield idx, json.loads(line)
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+
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+
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+
def features_to_croissant(features):
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"""
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+
Convert a HF dataset feature into a Croissant-compatible description.
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| 85 |
+
"""
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+
def convert_feature(name:str, feature:datasets.features.features.Features):
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if isinstance(feature, datasets.Value):
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return {
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"name": name,
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"dataType": feature.dtype,
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"description": f"{name} field"
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}
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elif isinstance(feature, datasets.Sequence):
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inner = feature.feature
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if isinstance(inner, dict): # nested structure
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return {
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"name": name,
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"isArray": True,
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"description": f"{name} sequence",
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"features": [convert_feature(k, v) for k, v in inner.items()]
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}
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elif isinstance(inner, Value): # flat sequence
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return {
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"name": name,
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+
"isArray": True,
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"description": f"{name} sequence",
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"dataType": inner.dtype
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}
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else:
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return {
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"name": name,
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"dataType": "unknown",
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"description": f"{name} field"
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}
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return [convert_feature(name, feature) for name, feature in features.items()]
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