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The dataset viewer is not available for this split.
Cannot extract the features (columns) for the split 'train' of the config 'default' of the dataset.
Error code: FeaturesError
Exception: ArrowInvalid
Message: JSON parse error: Column(/ner/[]/[]) changed from number to string in row 0
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/json/json.py", line 183, in _generate_tables
df = pandas_read_json(f)
^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/json/json.py", line 38, in pandas_read_json
return pd.read_json(path_or_buf, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/pandas/io/json/_json.py", line 815, in read_json
return json_reader.read()
^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/pandas/io/json/_json.py", line 1014, in read
obj = self._get_object_parser(self.data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/pandas/io/json/_json.py", line 1040, in _get_object_parser
obj = FrameParser(json, **kwargs).parse()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/pandas/io/json/_json.py", line 1176, in parse
self._parse()
File "/usr/local/lib/python3.12/site-packages/pandas/io/json/_json.py", line 1392, in _parse
ujson_loads(json, precise_float=self.precise_float), dtype=None
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: Trailing data
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/split/first_rows.py", line 243, in compute_first_rows_from_streaming_response
iterable_dataset = iterable_dataset._resolve_features()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 3608, in _resolve_features
features = _infer_features_from_batch(self.with_format(None)._head())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2368, in _head
return next(iter(self.iter(batch_size=n)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2573, in iter
for key, example in iterator:
^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2060, in __iter__
for key, pa_table in self._iter_arrow():
^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2082, in _iter_arrow
yield from self.ex_iterable._iter_arrow()
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 544, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 383, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/json/json.py", line 186, in _generate_tables
raise e
File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/json/json.py", line 160, in _generate_tables
pa_table = paj.read_json(
^^^^^^^^^^^^^^
File "pyarrow/_json.pyx", line 342, in pyarrow._json.read_json
File "pyarrow/error.pxi", line 155, in pyarrow.lib.pyarrow_internal_check_status
File "pyarrow/error.pxi", line 92, in pyarrow.lib.check_status
pyarrow.lib.ArrowInvalid: JSON parse error: Column(/ner/[]/[]) changed from number to string in row 0Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
Betterdata Annotated Multilingual NER/PII
Dataset Summary
This dataset contains multilingual, annotated NER/PII spans across 13 languages with 60+ label classes spanning PII, PHI, PCI, and general entity types. It is designed to train and evaluate privacy-preserving NER models.
Data Sources
- bloomberg_financial_news_annotated (data/augmented/bloomberg_financial_news_annotated.jsonl)
- c4_multilingual_annotated (data/augmented/c4_multilingual_annotated.jsonl)
- finewiki_annotated (data/augmented/finewiki_annotated.jsonl)
- pleias_sec_annotated (data/augmented/pleias_sec_annotated.jsonl)
- pubmed_common_pile_annotated (data/augmented/pubmed_common_pile_annotated.jsonl)
- pubmed_medrag_annotated (data/augmented/pubmed_medrag_annotated.jsonl)
- wiki40b_annotated (data/augmented/wiki40b_annotated.jsonl)
- wikiann_annotated (data/augmented/wikiann_annotated.jsonl)
- wikipedia_annotated (data/augmented/wikipedia_annotated.jsonl)
- wikisource_annotated (data/augmented/wikisource_annotated.jsonl)
Annotation Notes
- LLMs are instructed for high recall, so some noise is expected.
- Entities must appear verbatim in text; out-of-schema labels are discarded.
- Outputs are normalized into GLiNER token-span format for training.
Label Schema
See label_schema.json for the full list of labels, categories, and descriptions.
Statistics
- Total records: 387736
- Total entities: 756419
- Train/Validation/Test: 348958 / 19382 / 19396
- Label coverage: 84 / 88
- Languages: Chinese, Dutch, English, French, German, Indonesian, Italian, Japanese, Korean, Spanish, Swedish, Vietnamese
Intended Use
Training and evaluation for multilingual NER/PII detection and redaction.
Limitations
- LLM-annotated data may contain noise.
- Coverage varies by language and domain.
- Some labels are sparse and may require additional sampling.
License
Apache-2.0. Verify that source corpus licenses are compatible before redistribution.
Citation
If you use this dataset, cite the accompanying dataset card and release date: 2026-02-12.
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