Dataset Viewer
The dataset viewer is not available for this split.
Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code: StreamingRowsError
Exception: CastError
Message: Couldn't cast
cpc_code: string
name: string
definition: string
glossary: struct<plant: string, Plant: string, Planting: string, Sowing: string, Fertilising: string, Combine (... 113749 chars omitted)
child 0, plant: string
child 1, Plant: string
child 2, Planting: string
child 3, Sowing: string
child 4, Fertilising: string
child 5, Combine (noun): string
child 6, Fork: string
child 7, Harvest (verb): string
child 8, Hay: string
child 9, Haymaking: string
child 10, Mow (verb): string
child 11, Thresh (verb): string
child 12, Transversal: string
child 13, Longitudinal: string
child 14, bale: string
child 15, bundle: string
child 16, combine: string
child 17, harvest: string
child 18, mow: string
child 19, threshing: string
child 20, Screens or sieves: string
child 21, angling: string
child 22, game: string
child 23, honeycomb: string
child 24, poultry: string
child 25, stock: string
child 26, halter: string
child 27, neck-bar: string
child 28, fetlock ring: string
child 29, hobble: string
child 30, frass: string
child 31, Animal: string
child 32, Destruction: string
child 33, Fumigator: string
child 34, Insect: string
child 35, Killing: string
child 36, Noxious: string
child 37, Snare: string
child 38, Vermin: string
child 39, Insects: string
child 40, Atomiser: string
child 41, Repelling: string
child 42, acaricide: string
child 43, alkali metal: string
child 44, alkaline earth metal: string
child 4
...
hild 4894, organic device: string
child 4895, radiation-sensitive: string
child 4896, tandem OLED: string
child 4897, tandem PV cell: string
child 4898, tiled display: string
child 4899, OLED display: string
child 4900, TOLED display: string
child 4901, AMOLED display: string
child 4902, PMOLED display: string
child 4903, OTFT array: string
child 4904, TFT array: string
child 4905, RGBW: string
child 4906, thermocouple: string
child 4907, thermopile: string
child 4908, stacked or multilayer(ed) structure: string
child 4909, Abrikosov vortex: string
child 4910, cryotron: string
child 4911, Tc: string
child 4912, high Tc: string
synonyms_text: string
parents: list<item: string>
child 0, item: string
parent_titles: list<item: string>
child 0, item: string
level: int64
processing: struct<parser: string, parsed_terms: string>
child 0, parser: string
child 1, parsed_terms: string
artifact_type: string
source: struct<name: string, release: string, archive: string>
child 0, name: string
child 1, release: string
child 2, archive: string
term_type: string
embedding: struct<model: string, dimension: int64, normalized: bool>
child 0, model: string
child 1, dimension: int64
child 2, normalized: bool
data: struct<num_terms: int64, terms_file: string, embedding_file: string, metadata_file: string>
child 0, num_terms: int64
child 1, terms_file: string
child 2, embedding_file: string
child 3, metadata_file: string
version: string
to
{'artifact_type': Value('string'), 'term_type': Value('string'), 'version': Value('string'), 'source': {'name': Value('string'), 'release': Value('string'), 'archive': Value('string')}, 'processing': {'parser': Value('string'), 'parsed_terms': Value('string')}, 'embedding': {'model': Value('string'), 'dimension': Value('int64'), 'normalized': Value('bool')}, 'data': {'num_terms': Value('int64'), 'terms_file': Value('string'), 'embedding_file': Value('string'), 'metadata_file': Value('string')}}
because column names don't match
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2840, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2373, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2398, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
raise CastError(
...<3 lines>...
)
datasets.table.CastError: Couldn't cast
cpc_code: string
name: string
definition: string
glossary: struct<plant: string, Plant: string, Planting: string, Sowing: string, Fertilising: string, Combine (... 113749 chars omitted)
child 0, plant: string
child 1, Plant: string
child 2, Planting: string
child 3, Sowing: string
child 4, Fertilising: string
child 5, Combine (noun): string
child 6, Fork: string
child 7, Harvest (verb): string
child 8, Hay: string
child 9, Haymaking: string
child 10, Mow (verb): string
child 11, Thresh (verb): string
child 12, Transversal: string
child 13, Longitudinal: string
child 14, bale: string
child 15, bundle: string
child 16, combine: string
child 17, harvest: string
child 18, mow: string
child 19, threshing: string
child 20, Screens or sieves: string
child 21, angling: string
child 22, game: string
child 23, honeycomb: string
child 24, poultry: string
child 25, stock: string
child 26, halter: string
child 27, neck-bar: string
child 28, fetlock ring: string
child 29, hobble: string
child 30, frass: string
child 31, Animal: string
child 32, Destruction: string
child 33, Fumigator: string
child 34, Insect: string
child 35, Killing: string
child 36, Noxious: string
child 37, Snare: string
child 38, Vermin: string
child 39, Insects: string
child 40, Atomiser: string
child 41, Repelling: string
child 42, acaricide: string
child 43, alkali metal: string
child 44, alkaline earth metal: string
child 4
...
hild 4894, organic device: string
child 4895, radiation-sensitive: string
child 4896, tandem OLED: string
child 4897, tandem PV cell: string
child 4898, tiled display: string
child 4899, OLED display: string
child 4900, TOLED display: string
child 4901, AMOLED display: string
child 4902, PMOLED display: string
child 4903, OTFT array: string
child 4904, TFT array: string
child 4905, RGBW: string
child 4906, thermocouple: string
child 4907, thermopile: string
child 4908, stacked or multilayer(ed) structure: string
child 4909, Abrikosov vortex: string
child 4910, cryotron: string
child 4911, Tc: string
child 4912, high Tc: string
synonyms_text: string
parents: list<item: string>
child 0, item: string
parent_titles: list<item: string>
child 0, item: string
level: int64
processing: struct<parser: string, parsed_terms: string>
child 0, parser: string
child 1, parsed_terms: string
artifact_type: string
source: struct<name: string, release: string, archive: string>
child 0, name: string
child 1, release: string
child 2, archive: string
term_type: string
embedding: struct<model: string, dimension: int64, normalized: bool>
child 0, model: string
child 1, dimension: int64
child 2, normalized: bool
data: struct<num_terms: int64, terms_file: string, embedding_file: string, metadata_file: string>
child 0, num_terms: int64
child 1, terms_file: string
child 2, embedding_file: string
child 3, metadata_file: string
version: string
to
{'artifact_type': Value('string'), 'term_type': Value('string'), 'version': Value('string'), 'source': {'name': Value('string'), 'release': Value('string'), 'archive': Value('string')}, 'processing': {'parser': Value('string'), 'parsed_terms': Value('string')}, 'embedding': {'model': Value('string'), 'dimension': Value('int64'), 'normalized': Value('bool')}, 'data': {'num_terms': Value('int64'), 'terms_file': Value('string'), 'embedding_file': Value('string'), 'metadata_file': Value('string')}}
because column names don't matchNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
ComPo Embeddings
Versioned CPC and MeSH term data and embeddings used by ComPo for controlled-vocabulary semantic retrieval.
Each version contains the original source data, parsed term data, embeddings, metadata, and a manifest describing how the artifacts were generated.
Structure
cpc/
└── 2026/
├── source/
│ └── FullCPCDefinitionXML202605.tar.gz
├── terms.json
├── embeddings.npy
├── metadata.json
└── manifest.json
mesh/
└── 2026/
├── source/
│ └── desc2026.xml.tar.gz
├── terms.json
├── embeddings.npy
├── metadata.json
└── manifest.json
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