Asymptotic characterisation of localised defect modes: Su-Schrieffer-Heeger and related models
Paper • 2202.07324 • Published
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https://api.github.com/repos/huggingface/datasets/issues/7999 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7999/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7999/comments | https://api.github.com/repos/huggingface/datasets/issues/7999/events | https://github.com/huggingface/datasets/issues/7999 | 3,915,367,642 | I_kwDODunzps7pX8Ta | 7,999 | Too many dataloader workers: 4 (max is dataset.num_shards=3). Stopping 1 dataloader workers. | {
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I’m working on training with a large-scale dataset (100+ Parquet files) using lazy loading, and I’m struggling to understand/optimize the num_shards setting— in the lerobot repo: streaming_datasets.py:
```
from datasets import load_dataset
self.hf_dataset: datasets.IterableDataset = load_dataset(
self.... | null | {
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https://github.com/huggingface/datasets/blob/025593f2f0722f31fc136e0ae45da4ff44d4416a/src/datasets/config.py#L221-L226
Docstrings and warnings report env var name `HF_DATASETS_DISABLE_PROGRESS_BAR` without the ending `S`.
https://github.com/huggingface/data... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7997 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7997/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7997/comments | https://api.github.com/repos/huggingface/datasets/issues/7997/events | https://github.com/huggingface/datasets/pull/7997 | 3,912,160,109 | PR_kwDODunzps7CRNIl | 7,997 | fix: Dataset.map writer initialization when first examples return None | {
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## Summary
When Dataset.map is called and the first examples processed return None, the writer is never properly initialized, causing a ValueError.
## Changes
- Modified _map_single to initialize the writer early if the first batch returns empty results
- Ensures writer is set before the first call to w... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7996 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7996/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7996/comments | https://api.github.com/repos/huggingface/datasets/issues/7996/events | https://github.com/huggingface/datasets/pull/7996 | 3,912,066,322 | PR_kwDODunzps7CQ6GC | 7,996 | Fix Dataset.map writer initialization when early examples return None | {
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Fixes #7990
This PR fixes a bug in `Dataset.map()` where the writer initialization was incorrectly tied to the index being 0, causing crashes when the map function returns `None` for the first few examples and later returns a dict.
### Changes
- **Non-batched mode** (line 3676): Changed from `if i == 0:... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7995 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7995/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7995/comments | https://api.github.com/repos/huggingface/datasets/issues/7995/events | https://github.com/huggingface/datasets/pull/7995 | 3,912,055,867 | PR_kwDODunzps7CQ4C9 | 7,995 | Bump fsspec upper bound to 2026.2.0 (fixes #7994) | {
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https://api.github.com/repos/huggingface/datasets/issues/7994 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7994/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7994/comments | https://api.github.com/repos/huggingface/datasets/issues/7994/events | https://github.com/huggingface/datasets/issues/7994 | 3,906,330,806 | I_kwDODunzps7o1eC2 | 7,994 | Bump fsspec upper bound constraint | {
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I saw you had some API compat issues in the past (https://github.com/huggingface/datasets/issues/7326) and I understand the need for an upper bound.
But I wonder if you think your CI and tests are a good proxy to catch fsspec API breakage? If t... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7993 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7993/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7993/comments | https://api.github.com/repos/huggingface/datasets/issues/7993/events | https://github.com/huggingface/datasets/pull/7993 | 3,898,606,021 | PR_kwDODunzps7Bkr3F | 7,993 | :sparkles: Add 'SparseCsv' builder and 'sparse_collate_fn' for efficient high-dimensional sparse data loading | {
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It also adds a utility function, `sparse_collate_fn`, to... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7992 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7992/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7992/comments | https://api.github.com/repos/huggingface/datasets/issues/7992/events | https://github.com/huggingface/datasets/pull/7992 | 3,897,848,157 | PR_kwDODunzps7BiJps | 7,992 | Add `IterableDataset.reshard()` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7992). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-04T18:24:41 | 2026-02-04T18:55:38 | 2026-02-04T18:55:35 | MEMBER | null | null | null | null | To increase the number of shards of a dataset, you can use [`IterableDataset.reshard`]:
```py
>>> dataset
IterableDataset({
features: ['label', 'title', 'content'],
num_shards: 4
})
>>> dataset.reshard()
IterableDataset({
features: ['label', 'title', 'content'],
num_shards: 3600
})
```
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} | i am using the python api wrapper to list all datasets available on hugging face. This is for research, and i need all datasets to determine which % have language tags and other related questions requiring the total list. However, the following code that worked a few months ago:
```
from huggingface_hub import HfApi
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} | ### Describe the bug
I detected a serious [bug from datasets/arrow_dataset.py](https://github.com/huggingface/datasets/blob/main/src/datasets/arrow_dataset.py#L3676)
---
**Description of the bug**
`Dataset.map` crashes with `writer is None` when the map function returns `None` for the first few examples and a diction... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7989 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7989/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7989/comments | https://api.github.com/repos/huggingface/datasets/issues/7989/events | https://github.com/huggingface/datasets/pull/7989 | 3,895,613,949 | PR_kwDODunzps7BaxDx | 7,989 | Remove pre-release workaround in CI for `transformers v5` and `huggingface_hub v1` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7989). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-04T09:42:49 | 2026-02-04T15:20:04 | 2026-02-04T15:20:02 | CONTRIBUTOR | null | null | null | null | This PR removes workaround for pre-release `transformers v5.*` / `huggingface_hub v1.*` in `test_py314_future` job since they are now officially released.
cc @Wauplin just for viz since you introduced this in https://github.com/huggingface/datasets/pull/7783. | {
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https://api.github.com/repos/huggingface/datasets/issues/7988 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7988/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7988/comments | https://api.github.com/repos/huggingface/datasets/issues/7988/events | https://github.com/huggingface/datasets/issues/7988 | 3,895,353,435 | I_kwDODunzps7oLmBb | 7,988 | `Dataset.map()` breaks when `function` calls `import polars as pl` and `num_proc`>1: "UnboundLocalError: cannot access local variable 'pl' where it is not associated with a value" | {
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} | ### Describe the bug
# Repro
These two conditions seem to consistently reproduce the issue:
- function passed to `Dataset.map()` explicitly or implicitly calls `import polars as pl`
- `num_proc` > 1
# Trace
```
RemoteTraceback Traceback (most recent call last)
RemoteTraceback:
"""
Traceback... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7987 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7987/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7987/comments | https://api.github.com/repos/huggingface/datasets/issues/7987/events | https://github.com/huggingface/datasets/pull/7987 | 3,894,713,494 | PR_kwDODunzps7BX0pY | 7,987 | Fix index out of bound error with original_shard_lengths. | {
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```
original_shard_lengths[original_shard_id] += 1
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
IndexError: list index out of range
```
Not sure what causes it, but this fixes the error. This may not be the proper fix for the root cause though. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7986 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7986/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7986/comments | https://api.github.com/repos/huggingface/datasets/issues/7986/events | https://github.com/huggingface/datasets/issues/7986 | 3,892,776,651 | I_kwDODunzps7oBw7L | 7,986 | `Dataset.map()` causes cache miss/fingerprint change when closure captures self containing non-deterministic state. | {
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"I suggest metion this in docs specifically for attention with use, tell users explicitly to pass arguments with `fn_kwargs` param or using `functools.partial` to create a pure funcion."
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} | ### Describe the bug
When using `.map()` with a function defined inside a **class (of which has any non-deterministic states)** method (a closure), if that function captures `self` to access a configuration variable (e.g., self.foo), the fingerprint mechanism serializes the entire class instance state.
If the class i... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7985 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7985/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7985/comments | https://api.github.com/repos/huggingface/datasets/issues/7985/events | https://github.com/huggingface/datasets/pull/7985 | 3,892,480,150 | PR_kwDODunzps7BQaGn | 7,985 | Remove unused data files optims | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7985). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-03T17:58:30 | 2026-02-03T18:30:30 | 2026-02-03T18:30:28 | MEMBER | null | null | null | null | this fixes module inference when there are many metadata files
e.g. the lance dataset at https://huggingface.co/datasets/davanstrien/encyclopaedia-britannica-lance has > 200 metadata files
those optims are not used anymore, they come from a time we were dealing with slow data files iterators instead of lists | {
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https://api.github.com/repos/huggingface/datasets/issues/7983 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7983/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7983/comments | https://api.github.com/repos/huggingface/datasets/issues/7983/events | https://github.com/huggingface/datasets/pull/7983 | 3,888,225,779 | PR_kwDODunzps7BCJgV | 7,983 | Add Zarr streaming support (POC) | {
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This introduces a `zarr` packaged module and docs/tests to validate basic loading.
Note: I pushed a follow-up commit to fix an accidental duplication in `benchmarks/benchmark_zarr_streaming.py` (file now contains a single benchmark script). | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7982 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7982/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7982/comments | https://api.github.com/repos/huggingface/datasets/issues/7982/events | https://github.com/huggingface/datasets/pull/7982 | 3,888,131,856 | PR_kwDODunzps7BB1zZ | 7,982 | Fix unstable tokenizer fingerprinting (enables map cache reuse) | {
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Some tokenizers backed by `tokenizers.Tokenizer` mutate runtime settings (padding/truncation) when called, which can change the serialized state and make dataset fingerprints unstable. That prevents `.map(load_from_cache_file=True)` from reusi... | null | {
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] | 2026-02-02T16:13:04 | 2026-02-02T16:26:31 | 2026-02-02T16:26:29 | MEMBER | null | null | null | null | EOL was a few months ago, and transformers doesn't support 3.9 anymore | {
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https://api.github.com/repos/huggingface/datasets/issues/7979 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7979/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7979/comments | https://api.github.com/repos/huggingface/datasets/issues/7979/events | https://github.com/huggingface/datasets/pull/7979 | 3,886,772,007 | PR_kwDODunzps7A9T06 | 7,979 | Use temp files in push_to_hub to save memory | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7979). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-02T16:10:38 | 2026-02-02T16:26:16 | 2026-02-02T16:26:14 | MEMBER | null | null | null | null | write parquet data to temp files on disk prior to upload to save memory
this is enabled for for datasets loaded using streaming=True/False | {
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https://api.github.com/repos/huggingface/datasets/issues/7978 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7978/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7978/comments | https://api.github.com/repos/huggingface/datasets/issues/7978/events | https://github.com/huggingface/datasets/pull/7978 | 3,879,787,436 | PR_kwDODunzps7AmQfP | 7,978 | Fix 4910 kwargs | {
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Problem: load_dataset("dataset", base_path="./data")` gives TypeError("multiple values for keyword 'base_path')
Fix: {**builder_kwargs, **config_kwargs} to user kwargs override dataset defaults
Repro : python
Before: TypeError
load_dataset("r... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7977 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7977/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7977/comments | https://api.github.com/repos/huggingface/datasets/issues/7977/events | https://github.com/huggingface/datasets/pull/7977 | 3,879,142,697 | PR_kwDODunzps7AkMoM | 7,977 | Updated get_dataset_config_names returning default in offline mode | {
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https://api.github.com/repos/huggingface/datasets/issues/7976 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7976/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7976/comments | https://api.github.com/repos/huggingface/datasets/issues/7976/events | https://github.com/huggingface/datasets/pull/7976 | 3,879,038,987 | PR_kwDODunzps7Aj2hP | 7,976 | Write image/audio/video blobs as is in parquet (PLAIN) | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7976). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-31T11:49:39 | 2026-02-03T20:03:48 | 2026-01-31T11:50:33 | MEMBER | null | null | null | null | following #7971 | {
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https://api.github.com/repos/huggingface/datasets/issues/7975 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7975/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7975/comments | https://api.github.com/repos/huggingface/datasets/issues/7975/events | https://github.com/huggingface/datasets/pull/7975 | 3,878,625,407 | PR_kwDODunzps7AikAO | 7,975 | Docs: add Dataset.from_dict example | {
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This helps new users discover the most direct way to build a small dataset from in-memory Python data.
Docs-only change. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7974 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7974/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7974/comments | https://api.github.com/repos/huggingface/datasets/issues/7974/events | https://github.com/huggingface/datasets/pull/7974 | 3,878,625,349 | PR_kwDODunzps7Aij_g | 7,974 | Fix duplicate kwargs in load_dataset_builder | {
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Some module factories provide values in `builder_kwargs` (e.g. `base_path`), and users can also pass the same keys via `config_kwargs`, which raises:
`TypeError: ... got multiple values for keyword argument ...`.
Fix: if `config_kwargs` is provided,... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7973 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7973/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7973/comments | https://api.github.com/repos/huggingface/datasets/issues/7973/events | https://github.com/huggingface/datasets/pull/7973 | 3,878,514,101 | PR_kwDODunzps7AiMd8 | 7,973 | Fix resolve_pattern for local symlinked files | {
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Problem: on the local `file://` filesystem, `fsspec` can report symlinks as `type=="other"` and omit the `islink` flag, so symlinked files are skipped.
Fix: when `protocol=="file"`, treat `os.path.islink(filepath)` as a link candidate and include it if it resolves to... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7972 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7972/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7972/comments | https://api.github.com/repos/huggingface/datasets/issues/7972/events | https://github.com/huggingface/datasets/pull/7972 | 3,874,083,781 | PR_kwDODunzps7AT07I | 7,972 | feat: implement iter_arrow for skip, take and step iterables | {
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https://api.github.com/repos/huggingface/datasets/issues/7971 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7971/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7971/comments | https://api.github.com/repos/huggingface/datasets/issues/7971/events | https://github.com/huggingface/datasets/pull/7971 | 3,871,984,311 | PR_kwDODunzps7AMzLl | 7,971 | push_to_hub() for videos | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7971). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-29T18:16:58 | 2026-01-31T11:50:25 | 2026-01-29T18:56:04 | MEMBER | null | null | null | null | possible now that row group sizes are auto-determined based on the content size after https://github.com/huggingface/datasets/pull/7589
Videos are uploaded as PLAIN in Parquet to make sure they can be seeked remotely and with random access to frames in https://github.com/huggingface/datasets/pull/7976
In the futu... | {
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https://api.github.com/repos/huggingface/datasets/issues/7970 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7970/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7970/comments | https://api.github.com/repos/huggingface/datasets/issues/7970/events | https://github.com/huggingface/datasets/issues/7970 | 3,869,700,866 | I_kwDODunzps7mpvMC | 7,970 | cast_column(..., Audio) fails with load_dataset("csv",) | {
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"The following code *does* work:\n```py\nfrom datasets import load_dataset,Audio,Features\n\ndataset = load_dataset(\"csv\",data_files=\"audio.csv\",features=Features({\"audio\": Audio()}))\nprint(dataset[\"train\"][0][\"audio\"])\n```",
"Thanks for reporing ! Are you using pandas v3 by any chance ? The CSV loade... | 2026-01-29T09:33:35 | 2026-01-29T22:24:14 | null | NONE | null | null | {
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} | ### Describe the bug
Attempt to load a dataset from a csv with a single `audio` column with a single row with a path to an audio file fails when casting the column to Audio, but the exact same dataset created from a dictionary succeeds.
### Steps to reproduce the bug
1. Have any valid audio file `audio.wav`
2. Have ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7969 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7969/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7969/comments | https://api.github.com/repos/huggingface/datasets/issues/7969/events | https://github.com/huggingface/datasets/pull/7969 | 3,865,100,307 | PR_kwDODunzps6_1p9H | 7,969 | Count examples in lance | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7969). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-28T12:00:37 | 2026-01-28T13:00:26 | 2026-01-28T13:00:23 | MEMBER | null | null | null | null | ```python
In [1]: from datasets import load_dataset_builder, StreamingDownloadManager
In [2]: b = load_dataset_builder("lance-format/openvid-lance")
Resolving data files: 100%|█| 240/240 [00:00<00:00, 42675.64it/s
In [3]: b.count_examples(StreamingDownloadManager())
Out[3]: {'train': 937957}
``` | {
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https://api.github.com/repos/huggingface/datasets/issues/7968 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7968/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7968/comments | https://api.github.com/repos/huggingface/datasets/issues/7968/events | https://github.com/huggingface/datasets/issues/7968 | 3,864,988,355 | I_kwDODunzps7mXwrD | 7,968 | Potential conflicting type checks and dead code in `/src/datasets/table.py` | {
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"ConcatenationTable is a subclass of datasets.table.Table but not pa.Table, so it should be fine"
] | 2026-01-28T11:34:53 | 2026-01-28T13:05:28 | null | NONE | null | null | {
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```
def to_blocks(table: Union[pa.Table, Table]) -> list[list[TableBlock]]:
if isinstance(table, pa.Table):
return [[InMemoryTable(table)]]
elif isinstance(ta... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7967 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7967/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7967/comments | https://api.github.com/repos/huggingface/datasets/issues/7967/events | https://github.com/huggingface/datasets/pull/7967 | 3,863,579,646 | PR_kwDODunzps6_wnm8 | 7,967 | Issue 7756 Fix - multiprocessing hang issue with start method check | {
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Detects bad multiprocessing start_method, fallback happens.
https://github.com/huggingface/datasets/issues/7756 | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7966 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7966/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7966/comments | https://api.github.com/repos/huggingface/datasets/issues/7966/events | https://github.com/huggingface/datasets/pull/7966 | 3,861,774,379 | PR_kwDODunzps6_qp_e | 7,966 | Infer types from lance blobs | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7966). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-27T18:00:25 | 2026-01-28T13:02:25 | 2026-01-28T13:02:23 | MEMBER | null | null | null | null | Ex: infer Video() type in https://huggingface.co/datasets/lance-format/openvid-lance and Image() type in https://huggingface.co/datasets/lance-format/laion-1m
```python
from datasets import load_dataset
ds = load_dataset("lance-format/laion-1m", streaming=True, split="train")
print(ds.feature["image"])
# Image... | {
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"Hi ! Yes you should use `cornell-movie-review-data/rotten_tomatoes` instead of `rotten_tomatoes`, which is the legacy name. Those datasets have been moved under their actual owners accounts some time ago (but we were keeping the old names as aliases)\n\nSome other impacted names are:\n- `imdb` -> `stanfordnlp/imdb... | 2026-01-27T02:20:31 | 2026-01-28T15:14:50 | 2026-01-28T15:14:50 | NONE | null | null | {
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https://github.com/mlflow/mlflow/actions/runs/21368603305/job/61506951617
```
ests/data/test_huggingface_dataset_and_source.py::test_from_huggingface_dataset_constructs_expected_dataset_with_revision - huggingface_hub.errors.HfHubHTTPError: 404 Client ... | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7964). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-26T22:56:24 | 2026-01-26T22:59:18 | 2026-01-26T22:56:38 | MEMBER | null | null | null | null | following #7913 | {
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https://api.github.com/repos/huggingface/datasets/issues/7963 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7963/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7963/comments | https://api.github.com/repos/huggingface/datasets/issues/7963/events | https://github.com/huggingface/datasets/pull/7963 | 3,856,921,322 | PR_kwDODunzps6_ajTD | 7,963 | Support null in json string cols | {
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] | 2026-01-26T17:31:55 | 2026-01-26T17:48:46 | 2026-01-26T17:48:44 | MEMBER | null | null | null | null | fix for https://huggingface.co/datasets/arcprize/arc_agi_v2_public_eval | {
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https://api.github.com/repos/huggingface/datasets/issues/7962 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7962/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7962/comments | https://api.github.com/repos/huggingface/datasets/issues/7962/events | https://github.com/huggingface/datasets/pull/7962 | 3,856,811,005 | PR_kwDODunzps6_aM71 | 7,962 | Use Sequence instead of list in Dataset.from_parquet type hints | {
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"Thank you for the review!\r\n\r\nI’ve updated the implementation to:\r\n- Use Sequence from collections.abc as per project conventions\r\n- Restore backward compatibility with Union[PathLike, Sequence[PathLike]]\r\n- Keep the columns annotation as Optional[Sequence[str]]\r\n\r\nThe fixes are pushed. Please let me ... | 2026-01-26T17:01:47 | 2026-02-04T06:47:52 | null | NONE | null | null | null | null | This PR updates type annotations in Dataset.from_parquet to use Sequence instead of list to avoid mypy invariant type issues, as discussed in issue #5354.
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https://api.github.com/repos/huggingface/datasets/issues/7961 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7961/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7961/comments | https://api.github.com/repos/huggingface/datasets/issues/7961/events | https://github.com/huggingface/datasets/pull/7961 | 3,847,883,164 | PR_kwDODunzps6-9GHz | 7,961 | Revert "feat: avoid some copies in torch formatter (#7787)" | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7961). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-23T15:13:01 | 2026-01-23T15:16:01 | 2026-01-23T15:15:33 | MEMBER | null | null | null | null | This reverts commit c412a6f5a50955e141c5169bf7abe005d10228d2 (I assume it was ai generated which makes it hard for me to review and make sure it doesn't have bad edge cases, but lmk if it wasn't, anyways it didn't take into account the torch kwargs which are responsible for sending the data to the correct device) | {
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https://api.github.com/repos/huggingface/datasets/issues/7960 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7960/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7960/comments | https://api.github.com/repos/huggingface/datasets/issues/7960/events | https://github.com/huggingface/datasets/pull/7960 | 3,847,601,199 | PR_kwDODunzps6-8Iak | 7,960 | docs: fix grammar and add type hints in splits.py | {
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src/datasets/splits.py
by:
Fixing pluralization/grammar errors in docstrings (Lines 62, 73, 403).
Adding Python type hints to the
NamedSplit
constructor for better code quality.
Verified with ruff format and ruff check. | {
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https://api.github.com/repos/huggingface/datasets/issues/7958 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7958/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7958/comments | https://api.github.com/repos/huggingface/datasets/issues/7958/events | https://github.com/huggingface/datasets/issues/7958 | 3,847,184,392 | I_kwDODunzps7lT2AI | 7,958 | [CUDA Tensors Not working in ~v4.5.0] set_format(type="torch", device="cuda") returns cpu | {
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"@lhoestq tagging you here as you were on the previous issue, hope that's fine. ",
"Thanks for reporting, let me take a look",
"I reverted this change which caused the issue #7961 , I'll do a new release soon but in the meantime feel free to install `datasets` from source",
"@lhoestq thanks a lot. I am actual... | 2026-01-23T12:06:48 | 2026-01-25T05:30:53 | null | NONE | null | null | {
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} | ### Describe the bug
The problem is that when calling:
```ds.set_format(type="torch", columns = ["input", "labels"], device="cuda")```
The device type of the individual datapoints is now: `cpu` as opposed to `cuda:0`.
With `v4.0.0` it still works. With `v4.5.0` it doesn't work anymore.
Related Issue:
https://github... | null | {
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"Hi maintainers 👋 \r\nThis PR fixes `all_exhausted_without_replacement` to ensure all samples are emitted exactly once, \r\nand adds a regression test reproducing the reported issue.\r\n\r\nHappy to adjust the implementation or split changes if you’d prefer.\r\nThanks!\r\n",
"We just merged https://github.com/... | 2026-01-21T18:47:32 | 2026-01-23T16:09:28 | 2026-01-23T16:09:28 | NONE | null | null | null | null | Fix interleave_datasets "all_exhausted_without_replacement" stopping strategy
- Corrected logic to ensure each sample is picked exactly once when using
stopping_strategy="all_exhausted_without_replacement".
- Adjusted boolean stopping condition to properly track dataset exhaustion.
- Added test to verify the l... | {
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"Yes, that's a hard limit. Can you split your files into different folders? Or we'll probably have a new repo type in the near to mid future that will relax this limit a bit. ",
"Thanks! Working around this with a different sharding parameter to have fewer overall fragments (and therefore fewer files in `*.lance/... | 2026-01-21T16:37:38 | 2026-01-22T09:38:38 | null | NONE | null | null | {
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} | ### Feature request
Can the hard limit of 10k files per folder be extended with acceptable loss in performance?
### Motivation
I'm uploading a lance dataset to huggingface hub and have a folder inside lance internals (`data/*.lance/_transactions`) that has > 20k atomic transaction records and my commits are being re... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7955 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7955/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7955/comments | https://api.github.com/repos/huggingface/datasets/issues/7955/events | https://github.com/huggingface/datasets/pull/7955 | 3,837,083,395 | PR_kwDODunzps6-Y-EL | 7,955 | Fix interleave_datasets with all_exhausted_without_replacement strategy | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7955). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-21T08:10:45 | 2026-01-24T02:55:56 | 2026-01-23T16:08:39 | CONTRIBUTOR | null | null | null | null | When using interleave_datasets with stopping_strategy="all_exhausted_without_replacement" and probabilities=None, the function was incorrectly falling into the undersampling branch, causing it to stop at min(lengths) instead of continuing until all datasets were exhausted.
This fix adds a specific branch to handle t... | {
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https://api.github.com/repos/huggingface/datasets/issues/7954 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7954/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7954/comments | https://api.github.com/repos/huggingface/datasets/issues/7954/events | https://github.com/huggingface/datasets/issues/7954 | 3,837,020,089 | I_kwDODunzps7ktEe5 | 7,954 | all_exhausted_without_replacement working same as first_exhausted | {
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} | ### Describe the bug
>>> from datasets import Dataset, interleave_datasets
>>> d1 = Dataset.from_dict({"a": [0, 1, 2]})
>>> d2 = Dataset.from_dict({"a": [10, 11, 12, 13]})
>>> d3 = Dataset.from_dict({"a": [20, 21, 22]})
>>> dataset = interleave_datasets([d1, d2, d3], stopping_strategy="all_exhausted_without_replacemen... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7953 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7953/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7953/comments | https://api.github.com/repos/huggingface/datasets/issues/7953/events | https://github.com/huggingface/datasets/pull/7953 | 3,831,099,841 | PR_kwDODunzps6-FI-G | 7,953 | #5354: replace list with Sequence in from_parquet type hints | {
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Note: Local pytest errors on Python 3.13 due to removal of `distutils` are unrelated to this change.
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https://api.github.com/repos/huggingface/datasets/issues/7952 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7952/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7952/comments | https://api.github.com/repos/huggingface/datasets/issues/7952/events | https://github.com/huggingface/datasets/pull/7952 | 3,831,024,005 | PR_kwDODunzps6-E4dA | 7,952 | Fix #5354: replace list with Sequence in from_parquet type hints | {
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Note: Local pytest errors on Python 3.13 due to removal of `distutils` are unrelated to this change.
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End of preview. Expand in Data Studio
🐙 GitHub Issues Dataset
A curated dataset of GitHub issues and pull requests with rich metadata including comments, labels, reactions, assignees, and timeline information. Ideal for training models on software engineering tasks, issue classification, triage automation, and developer behavior analysis.
📊 Dataset Overview
| Property | Value |
|---|---|
| Examples | 1,000 issues/PRs |
| Source | GitHub API (v3) |
| Domains | Open-source software repositories |
| Languages | Primarily English |
| Date Range | Collected in 2024–2025 |
| Avg. Length | ~1,200 characters per issue body |
✨ Key Features
- ✅ Full issue metadata (title, body, state, timestamps)
- ✅ Author and assignee information with GitHub profiles
- ✅ Labels with colors and descriptions
- ✅ Nested comments (full conversation threads)
- ✅ Reaction counts (
+1,-1, 🚀, ❤️, etc.) - ✅ Pull request detection (
is_pull_requestflag) - ✅ Dependency tracking (
blocked_by/blockingrelationships) - ✅ Sub-issue completion metrics
🧱 Schema
Top-Level Fields
| Field | Type | Description |
|---|---|---|
url |
string |
API URL of the issue |
html_url |
string |
GitHub web URL |
id / node_id |
int64 / string |
GitHub identifiers |
number |
int64 |
Issue number within repository |
title |
string |
Issue title |
body |
string |
Full issue description (Markdown) |
state |
string |
open | closed |
state_reason |
string |
Reason for closure (completed, not_planned, etc.) |
locked |
bool |
Whether conversation is locked |
draft |
bool |
Whether issue is a draft |
is_pull_request |
bool |
True if this is a PR (not a regular issue) |
created_at / updated_at / closed_at |
timestamp |
Lifecycle timestamps |
author_association |
string |
Author's relationship to repo (OWNER, MEMBER, CONTRIBUTOR, etc.) |
Nested Structures
| Field | Structure | Key Subfields |
|---|---|---|
user |
struct |
login, id, type (User/Bot), site_admin |
assignee / assignees |
struct / list |
GitHub user profiles of assignees |
closed_by |
struct |
User who closed the issue |
labels |
list |
name, color, description, default |
comments |
list<string> |
Full comment texts in chronological order |
reactions |
struct |
total_count, +1, -1, heart, rocket, eyes, etc. |
pull_request |
struct |
PR-specific fields (merged_at, diff/patch URLs) |
sub_issues_summary |
struct |
total, completed, percent_completed |
issue_dependencies_summary |
struct |
blocked_by, blocking counts |
💡 Note: Fields like
milestone,type, andperformed_via_github_appmay containnullvalues for issues where these features aren't used.
🚀 Usage
Load with 🤗 Datasets
from datasets import load_dataset
# Load the full dataset
dataset = load_dataset("rsl-ai/github-issues")
# Access the training split
train_data = dataset["train"]
# Example: Get first issue's title and body
print(train_data[0]["title"])
print(train_data[0]["body"][:200] + "...") # Preview first 200 chars
Filter Pull Requests vs Issues
# Separate PRs from regular issues
pull_requests = [ex for ex in train_data if ex["is_pull_request"]]
regular_issues = [ex for ex in train_data if not ex["is_pull_request"]]
print(f"PRs: {len(pull_requests)}, Issues: {len(regular_issues)}")
Analyze Labels Distribution
from collections import Counter
all_labels = []
for issue in train_data:
for label in issue["labels"]:
all_labels.append(label["name"])
label_counts = Counter(all_labels).most_common(10)
print("Top 10 labels:", label_counts)
Extract Comment Threads
# Get all comments for a specific issue
issue = train_data[42]
for i, comment in enumerate(issue["comments"]):
print(f"Comment {i+1}: {comment[:100]}...") # Preview
💡 Example Applications
- Issue Triage: Classify issues by priority/severity using labels and metadata
- Auto-Tagging: Predict appropriate labels based on title/body content
- Duplicate Detection: Find similar issues using semantic similarity
- PR Prediction: Forecast whether an issue will become a pull request
- Sentiment Analysis: Analyze developer emotions in comments/reactions
- Knowledge Extraction: Build QA systems over project documentation in issues
⚠️ Limitations & Considerations
| Aspect | Note |
|---|---|
| Bias | Reflects patterns of active OSS projects; may underrepresent niche ecosystems |
| Privacy | All data is from public GitHub repositories (no private data included) |
| Language | Primarily English; limited multilingual support |
| Temporal Scope | Snapshot from collection period; doesn't reflect real-time GitHub state |
| Rate Limits | Original collection respected GitHub API rate limits |
🔐 License
- Dataset: MIT License
- Source Data: Subject to GitHub Terms of Service and individual repository licenses
- Usage Rights: For research and educational purposes. Commercial use requires compliance with GitHub's ToS.
ℹ️ This dataset contains only publicly available information. All rights to original content remain with issue authors and repository owners.
📚 Citation
If you use this dataset in your research, please cite:
@dataset{github_issues_2025,
author = {Ruslan Prashchurovich},
title = {GitHub Issues Dataset},
year = {2025},
publisher = {Hugging Face},
journal = {Hugging Face Datasets},
url = {https://huggingface.co/datasets/your-username/github-issues}
}
🙏 Acknowledgements
- Data collected via GitHub REST API v3
- Inspired by prior work on software engineering datasets (e.g., IssueSum, PRSummarizer)
- Processed using 🤗 Datasets library
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Size of downloaded dataset files:
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Size of the auto-converted Parquet files:
1.32 MB
Number of rows:
1,000