Generalization of Block Attention
Collection
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The dataset generation failed
Error code: DatasetGenerationError
Exception: TypeError
Message: Couldn't cast array of type list<item: string> to null
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1827, in _prepare_split_single
for key, table in generator:
^^^^^^^^^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
for item in generator(*args, **kwargs):
~~~~~~~~~^^^^^^^^^^^^^^^^^
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 2312, in cast_table_to_schema
cast_array_to_feature(
~~~~~~~~~~~~~~~~~~~~~^
table[name] if name in table_column_names else pa.array([None] * len(table), type=schema.field(name).type),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
feature,
^^^^^^^^
)
^
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1861, in wrapper
return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2152, in cast_array_to_feature
return array_cast(
array,
...<2 lines>...
allow_decimal_to_str=allow_decimal_to_str,
)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1863, in wrapper
return func(array, *args, **kwargs)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2016, in array_cast
raise TypeError(f"Couldn't cast array of type {_short_str(array.type)} to {_short_str(pa_type)}")
TypeError: Couldn't cast array of type list<item: string> to null
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 1369, in compute_config_parquet_and_info_response
parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
~~~~~~~~~~~~~~~~~~~~~~~~~^
builder, max_dataset_size_bytes=max_dataset_size_bytes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1694, in _prepare_split
for job_id, done, content in self._prepare_split_single(
~~~~~~~~~~~~~~~~~~~~~~~~~~^
gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
):
^
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1880, 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.
input string | context string | answers list | length int64 | dataset string | language string | all_classes null | _id string | chunks list | cut_prob list | parallel_degree int64 |
|---|---|---|---|---|---|---|---|---|---|---|
What is Saltram's living situation? | "Transcribed from the 1915 Martin Secker edition by David Price, email\nccx074@pglaf.org\n\n (...TRUNCATED) | [
"He is a guest in the home of the Mulvilles."
] | 22,692 | narrativeqa | en | null | 341d214a2c377691bf20e5a30b8f7979696bd19141ad9c9f | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.349609375,0.015869140625,0.053466796875,0.04150390625,0.000560760498046875,(...TRUNCATED) | 15 |
Why does Ann not return Mary's feelings of affection? | "E-text prepared by Jonathan Ingram, Janet Blenkinship, and the Project\nGutenberg Online Distribute(...TRUNCATED) | [
"Because she is in unrequited love with someone else"
] | 23,316 | narrativeqa | en | null | 26c6325283dece0b557e34cde9a5c57999ec5c68782e8194 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.337890625,0.0233154296875,0.08203125,0.15625,0.0028839111328125,0.000732421(...TRUNCATED) | 35 |
Where does the witch live? | "Produced by Sue Asscher\n\n\n\n\n\n\n\n\n\nThe Witch of Atlas\n\n\nby\n\nPercy Bysshe Shelley\n\n\n(...TRUNCATED) | [
"The Atlas Mountains"
] | 5,397 | narrativeqa | en | null | 5b8d6fdd30a297e508ebb484f172ca5bce8d31b340eb3506 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.2578125,0.119140625,0.000732421875,0.0029296875,0.047119140625,0.0001735687(...TRUNCATED) | 5 |
What was the purpose of Crito's visit? | "This etext was prepared by Sue Asscher <asschers@aia.net.au>\n\n\n\n\n\nCRITO\n\nby Plato\n\n\n\n\n(...TRUNCATED) | [
"To smuggle Socrates out of prison and into a life of exile."
] | 6,592 | narrativeqa | en | null | 68fc4dee839213b5259d41718909195c2f5274665bc18036 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.267578125,0.287109375,0.005828857421875,0.00506591796875,0.328125,0.0002412(...TRUNCATED) | 4 |
Why didn't Baron Henry just kill Otto instead of cutting his hand off? | "Produced by Angus Christian\n\n\n\n\n\nOTTO OF THE SILVER HAND\n\nBy Howard Pyle\n\n\n\n\n\nCONTENT(...TRUNCATED) | [
"Otto was so young."
] | 27,745 | narrativeqa | en | null | 36232c9c63d19d282643657b3da5b688cb14e3b44009c494 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.2490234375,0.125,0.003173828125,0.10107421875,0.00009632110595703125,0.0000(...TRUNCATED) | 19 |
How long had Mortimer Trefinnis' sister been dead when the doctor examined the body? | "Produced by David Brannan. HTML version by Al Haines.\n\n\n\n\n\n\n\n\n\nThe Adventure of the Devi(...TRUNCATED) | [
"Six hours."
] | 10,020 | narrativeqa | en | null | 0bf1995158cbf08134d5dc15475c27f38b3ab5441c422419 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.296875,0.26953125,0.00116729736328125,0.0023956298828125,0.0078125,0.000017(...TRUNCATED) | 5 |
With whom does the entertainers' manager have an affair? | "The Seventh Seal\n<b> \n</b>The night had brought little relief from the heat, and at dawn a hot gu(...TRUNCATED) | [
"Lisa, the blacksmith's wife."
] | 18,054 | narrativeqa | en | null | 9fbcbb5460066a68460ba92626c25371e0a1ff65b3bd5e84 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875],[0.48828125,0.00872802734375,0.00183868408203125,0.0000514984130859375,8.642(...TRUNCATED) | 9 |
Who is the first person that falls under Vigo's spell? | "\t\t\t\t\t\tGhostbusters II\n\n\t\t\t\t\t\t\tby\n\t\t\t\t\t\tHarold Ramis\n\t\t\t\t\t\t\tand\n\t\t\(...TRUNCATED) | [
"Dr. Janosz Poha"
] | 25,090 | narrativeqa | en | null | f9cfda8abcc78f9e2f492d4f58ee4996430e9a8911e29726 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.38671875,0.000457763671875,0.00010251998901367188,0.0000820159912109375,0.0(...TRUNCATED) | 18 |
What nationality is Ruth Anvoy? | "Transcribed from the 1915 Martin Secker edition by David Price, email\nccx074@pglaf.org\n\n (...TRUNCATED) | [
"She is an American."
] | 22,692 | narrativeqa | en | null | 58b8a46c20c05540367b90490846c4f9808db630026b28d4 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.349609375,0.015869140625,0.053466796875,0.04150390625,0.000560760498046875,(...TRUNCATED) | 15 |
Who did the Witch want to have reveal their own lies? | "Produced by Sue Asscher\n\n\n\n\n\n\n\n\n\nThe Witch of Atlas\n\n\nby\n\nPercy Bysshe Shelley\n\n\n(...TRUNCATED) | [
"The scribe."
] | 5,403 | narrativeqa | en | null | c89fd516348b68f96538948b052cb10d5b6f21bc441f5a55 | ["You are given a story, which can be either a novel or a movie script, and a question. Answer the q(...TRUNCATED) | [[0.000072479248046875,0.2578125,0.119140625,0.000732421875,0.0029296875,0.047119140625,0.0001735687(...TRUNCATED) | 5 |
End of preview.
Dataset Card for LongbenchSeg
The segmented version of Longbench using the trained segmenter from the paper Towards Generalization of Block Attention via Automatic Segmentation and Block Distillation.
We set the recursion depth to 1 and use the threshold value of 0.4.
Dataset Details
Dataset Description
The newly introduced segmentation columns are:
- chunks: The segmented chunks.
- cut_prob: The corresponding segmenting probability for each candidate cut point.
- parallel_degree: The number of segmented chunks.
If you find this dataset useful, please cite:
@article{DBLP:journals/corr/abs-2605-15913,
author = {Shuaiyi Li and
Zhisong Zhang and
Yan Wang and
Lei Zhu and
Dongyang Ma and
Chenlong Deng and
Yang Deng and
Wai Lam},
title = {Towards Generalization of Block Attention via Automatic Segmentation
and Block Distillation},
journal = {CoRR},
volume = {abs/2605.15913},
year = {2026},
url = {https://doi.org/10.48550/arXiv.2605.15913},
doi = {10.48550/ARXIV.2605.15913},
eprinttype = {arXiv},
eprint = {2605.15913},
timestamp = {Thu, 11 Jun 2026 10:32:45 +0200},
biburl = {https://dblp.org/rec/journals/corr/abs-2605-15913.bib},
bibsource = {dblp computer science bibliography, https://dblp.org}
}
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