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The dataset generation failed
Error code: DatasetGenerationError
Exception: CastError
Message: Couldn't cast
id: string
pdf_bytes: large_binary
sha256: string
to
{'id': Value('string'), 'image_bytes': Image(mode=None, decode=True), 'sha256': Value('string')}
because column names don't match
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1779, in _prepare_split_single
for key, table in generator:
^^^^^^^^^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 609, in wrapped
for item in generator(*args, **kwargs):
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/lance/lance.py", line 230, in _generate_tables
yield Key(frag_idx, batch_idx), self._cast_table(table)
^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/lance/lance.py", line 187, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/table.py", line 2321, in table_cast
return cast_table_to_schema(table, schema)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/table.py", line 2249, in cast_table_to_schema
raise CastError(
datasets.table.CastError: Couldn't cast
id: string
pdf_bytes: large_binary
sha256: string
to
{'id': Value('string'), 'image_bytes': Image(mode=None, decode=True), 'sha256': Value('string')}
because column names don't match
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1342, in compute_config_parquet_and_info_response
parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 907, in stream_convert_to_parquet
builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1646, in _prepare_split
for job_id, done, content in self._prepare_split_single(
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1832, in _prepare_split_single
raise DatasetGenerationError("An error occurred while generating the dataset") from e
datasets.exceptions.DatasetGenerationError: An error occurred while generating the datasetNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
id string | image_bytes image | sha256 string |
|---|---|---|
c53dacbe9b263ec94392b6184f1602ec47487308448636e712b2f95913281623 | c53dacbe9b263ec94392b6184f1602ec47487308448636e712b2f95913281623 | |
68616f90915f5d895647cb5859aa6c47b09c9978763e2110ab1f3d15f522c4ce | 68616f90915f5d895647cb5859aa6c47b09c9978763e2110ab1f3d15f522c4ce | |
75bb3719672ce160900f9cef14aead994e6399515daaa14d116719057d7c7142 | 75bb3719672ce160900f9cef14aead994e6399515daaa14d116719057d7c7142 | |
11843ee76d2a5d7402775d8043049d0565cb2ca3d00888ebecd71a7f3dfbdd7d | 11843ee76d2a5d7402775d8043049d0565cb2ca3d00888ebecd71a7f3dfbdd7d | |
6f93d35520c8a0d9dd6fc541e8f03472c08c3fb4ed4e386e15d92bd2492aa88e | 6f93d35520c8a0d9dd6fc541e8f03472c08c3fb4ed4e386e15d92bd2492aa88e | |
6b92bb5b47dd89c1d5da16be2cb0560804be802d88ace3003263a5053eb8a5e8 | 6b92bb5b47dd89c1d5da16be2cb0560804be802d88ace3003263a5053eb8a5e8 | |
3c526c4a17614d478d0a4d95cb3ff599299df43c00661c05e70969b0b0025da1 | 3c526c4a17614d478d0a4d95cb3ff599299df43c00661c05e70969b0b0025da1 | |
f0850351453fdbff9694108c819138da1f9e17776a9ab7a8dd0bca54571c523d | f0850351453fdbff9694108c819138da1f9e17776a9ab7a8dd0bca54571c523d | |
3312dcb09a47fe7699e4cc1697549060a1e709994210ffc1805a8b06c41e3163 | 3312dcb09a47fe7699e4cc1697549060a1e709994210ffc1805a8b06c41e3163 | |
94fde7876991fab20c1ee17f23597e984c737200383a9e86da213dbf20a5eff3 | 94fde7876991fab20c1ee17f23597e984c737200383a9e86da213dbf20a5eff3 | |
70a2234d3e77a20db972564a45603af6f6bdf5cf6a9b7bb4f815869e79d6a925 | 70a2234d3e77a20db972564a45603af6f6bdf5cf6a9b7bb4f815869e79d6a925 | |
fec98ce030873c2eeb2d77abc0e47ea5a928438597242a1fff31bbebe9cab1f1 | fec98ce030873c2eeb2d77abc0e47ea5a928438597242a1fff31bbebe9cab1f1 | |
09efe0a6da414301c0ca517cf4a9052eefc566e0990cef07ef8728e0dbf22605 | 09efe0a6da414301c0ca517cf4a9052eefc566e0990cef07ef8728e0dbf22605 | |
2b98111f6325f3f880bdf03f4a903c80720f1e1d3714a5e50d49c1f5df6e5072 | 2b98111f6325f3f880bdf03f4a903c80720f1e1d3714a5e50d49c1f5df6e5072 | |
90a91620bad4daf96947af1d838f0eebff7ddb7342642249c7d7f0fd28027e3d | 90a91620bad4daf96947af1d838f0eebff7ddb7342642249c7d7f0fd28027e3d | |
e713e17d041cd5442885d43a9f810c7d69cae9daff3b7b2c037febb0710339ec | e713e17d041cd5442885d43a9f810c7d69cae9daff3b7b2c037febb0710339ec | |
2a8083a8e08be0133bc64ef045e3a7ff0e71c811660aa84fa21f2e7d964ed072 | 2a8083a8e08be0133bc64ef045e3a7ff0e71c811660aa84fa21f2e7d964ed072 | |
157d692b20bd4dafd1d9dc443b2181a634a8bca63d6f0983dff535eb2f0c9c91 | 157d692b20bd4dafd1d9dc443b2181a634a8bca63d6f0983dff535eb2f0c9c91 | |
a4d38a910d44fdf062ced5d51bbff4c3d6a85856bd1d86016ce2b57f7e8960c1 | a4d38a910d44fdf062ced5d51bbff4c3d6a85856bd1d86016ce2b57f7e8960c1 | |
1d2e123422711ac7b20ddbcf38e1d94a968b43801d7ee65fbc1b7c15318e3b63 | 1d2e123422711ac7b20ddbcf38e1d94a968b43801d7ee65fbc1b7c15318e3b63 | |
96c0b066470731a705f2aac5102cdf84ed78d0d505d1d2deb83f47db70460c8a | 96c0b066470731a705f2aac5102cdf84ed78d0d505d1d2deb83f47db70460c8a | |
1b1f4ef0032249b77951ead93d378c4978cf1813069d09d8d852cce3d9ed09c1 | 1b1f4ef0032249b77951ead93d378c4978cf1813069d09d8d852cce3d9ed09c1 | |
57c22897bc3e36aa4cfa0764210da80310b26fb8777352ca2d706e7a7bd2fb2a | 57c22897bc3e36aa4cfa0764210da80310b26fb8777352ca2d706e7a7bd2fb2a | |
072cf58177f4bdf6dad150395defde9724dbc8c918afc1c77b991fa4fc5eb3e8 | 072cf58177f4bdf6dad150395defde9724dbc8c918afc1c77b991fa4fc5eb3e8 | |
ac2b2bd8f433094154104b34718e5cc2206e627ec133d43c6ba75f01634d2230 | ac2b2bd8f433094154104b34718e5cc2206e627ec133d43c6ba75f01634d2230 | |
7afdd2b46f6a7edce4ff44dcf4fdb64d89d539ebb6536aceb8969d4f82f16a45 | 7afdd2b46f6a7edce4ff44dcf4fdb64d89d539ebb6536aceb8969d4f82f16a45 | |
5c53dd31289fae5994ae945e041c31c5c13b6924c9f0e4fd72832ec45024e026 | 5c53dd31289fae5994ae945e041c31c5c13b6924c9f0e4fd72832ec45024e026 | |
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a3dce7d95b56be054c547f285296f9935f9cc59efa58baab7a004c51d0a1c970 | a3dce7d95b56be054c547f285296f9935f9cc59efa58baab7a004c51d0a1c970 | |
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3a7fb78197e02749c7d29ac15c767086aba5b91f01aa877b19120016ca139631 | 3a7fb78197e02749c7d29ac15c767086aba5b91f01aa877b19120016ca139631 | |
6285fe097ece3a03183cffaca1ca7b03faf10998fb2de840d5bec8259b6e42d8 | 6285fe097ece3a03183cffaca1ca7b03faf10998fb2de840d5bec8259b6e42d8 | |
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End of preview.
DCD arXiv Parse Demo Dataset
arxiv、libgen、xiaoyi 等来源的原始 PDF 和 MinerU解析结果示例数据集,以 LanceDB 格式存储。
每个数据源包含五个 LanceDB 数据集及一份平台元数据文件:
| 数据集 / 文件 | 内容 |
|---|---|
pdfs.lance |
原始 PDF 字节与可选追加的 layout PDF(id、pdf_bytes、sha256) |
pdf_labels.lance |
PDF 侧元数据与标注(id、info JSON、tags) |
text.lance |
MinerU Markdown 正文与 info(pdf_ids、image_ids 等) |
images.lance |
图片原始字节(id / sha256 为图片字节摘要) |
image_labels.lance |
图像内禀字段(info 含宽高、通道、字节数) |
dataset.yaml |
DCD 用数据集元数据 |
注意:各
*.lance均为 目录,不是单个文件,这是 LanceDB 的存储格式。
数据集概览
| 来源 | 条数(参考) | 原始批次 |
|---|---|---|
| arxiv | 762 | arxiv_20251203 |
| libgen | 88 | libgen_scihub_1026_all_0930 |
| xiaoyi | 436 | knowledge_xiaoyi_books_all_1114_3_2M |
仓库结构
dcd-pdf-parse-demo/
├── arxiv/
├── libgen/
└── xiaoyi/
(各子目录下结构相同)
├── pdfs.lance/ ← 原始 PDF + layout(LanceDB 目录)
├── pdf_labels.lance/ ← 元数据与标注(LanceDB 目录)
├── text.lance/ ← Markdown 正文(LanceDB 目录)
├── images.lance/ ← 图片字节(LanceDB 目录)
├── image_labels.lance/ ← 图像标注(LanceDB 目录)
└── dataset.yaml ← 数据集元数据
直接访问(无需下载全部数据)
pip install lance huggingface_hub
import lance
# 按需拉取;体积随图片与 PDF 变化,可按表分别打开
base = "hf://datasets/KuoKuoYeah/dcd-pdf-parse-demo/arxiv"
pdfs = lance.dataset(f"{base}/pdfs.lance")
print(pdfs.count_rows())
sample = pdfs.take([0, 1, 2]).to_pydict()
labels = lance.dataset(f"{base}/pdf_labels.lance")
print(labels.schema)
text_ds = lance.dataset(f"{base}/text.lance")
print(text_ds.count_rows())
images = lance.dataset(f"{base}/images.lance")
img_labels = lance.dataset(f"{base}/image_labels.lance")
完整下载后本地访问
from huggingface_hub import snapshot_download
import lance
local_dir = snapshot_download(
repo_id="KuoKuoYeah/dcd-pdf-parse-demo",
repo_type="dataset",
local_dir="/tmp/dcd-pdf-parse-demo",
)
source = "arxiv"
root = f"{local_dir}/{source}"
pdfs = lance.dataset(f"{root}/pdfs.lance")
labels = lance.dataset(f"{root}/pdf_labels.lance")
text_ds = lance.dataset(f"{root}/text.lance")
images = lance.dataset(f"{root}/images.lance")
img_labels = lance.dataset(f"{root}/image_labels.lance")
注册到 DCD 平台可视化(内部用户)
# 1. 下载数据到本地
huggingface-cli download KuoKuoYeah/dcd-pdf-parse-demo \
--repo-type dataset --local-dir /tmp/dcd-pdf-parse-demo
# 2. 在 DCD 的 datasets/ 目录下创建符号链接
ln -s /tmp/dcd-pdf-parse-demo/arxiv /path/to/adp/datasets/arxiv-parse-demo
启动 DCD 服务器后访问 http://localhost:8000/datasets/arxiv-parse-demo。
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