Dataset Viewer
The dataset viewer is not available for this subset.
Cannot get the split names for the config 'default' of the dataset.
Exception:    SplitsNotFoundError
Message:      The split names could not be parsed from the dataset config.
Traceback:    Traceback (most recent call last):
                File "tsfile/tsfile_py_cpp.pyx", line 567, in tsfile.tsfile_py_cpp.tsfile_reader_new_c
              tsfile.exceptions.FileOpenError: 28: 
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
                  for split_generator in builder._split_generators(
                                         ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      StreamingDownloadManager(base_path=builder.base_path, download_config=download_config)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 271, in _split_generators
                  scan = self._scan_metadata(all_files)
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 318, in _scan_metadata
                  with self._open_reader(file) as reader:
                       ~~~~~~~~~~~~~~~~~^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 742, in _open_reader
                  return TsFileReader(file)
                File "tsfile/tsfile_reader.pyx", line 323, in tsfile.tsfile_reader.TsFileReaderPy.__init__
              SystemError: <class '_weakrefset.WeakSet'> returned a result with an exception set
              
              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/split_names.py", line 71, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ~~~~~~~~~~~~~~~~~~~~~~~^
                      path=dataset,
                      ^^^^^^^^^^^^^
                      config_name=config,
                      ^^^^^^^^^^^^^^^^^^^
                      token=hf_token,
                      ^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                      path,
                  ...<6 lines>...
                      **config_kwargs,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 291, in get_dataset_config_info
                  raise SplitsNotFoundError("The split names could not be parsed from the dataset config.") from err
              datasets.inspect.SplitsNotFoundError: The split names could not be parsed from the dataset config.

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

Two Pipes TsFile

This is an Apache TsFile conversion of pyrrosk/two_pipes, a LeRobot v3.0 ALOHA dataset containing bilateral robot state/action time series.

Source and attribution

  • Original creator/uploader: Pyrros Koussios (pyrrosk)
  • Pinned revision: a7554820e1bba23648f2e067d812fbbece26612e
  • License: Apache-2.0
  • Train split: 103 episodes, 248,065 rows, 2 tasks, 50 fps, 1 Parquet shard
  • Task 0: insert the red pipe into the fitting (85,561 rows)
  • Task 1: insert the blue pipe into the fitting (162,504 rows)
  • The source card provides no paper or completed BibTeX citation.

Source videos remain at pyrrosk/two_pipes/videos: observation.images.top (53 MP4s), observation.images.left_wrist (45), and observation.images.right_wrist (39), for 137 files / 23.89 GB total. Videos are not included here. Align them with episode_index, frame_index, and the per-stream from_timestamp/to_timestamp offsets in meta/episodes.

Converted artifact

  • Files: data/pyrrosk_two_pipes_part_00.tsfile through data/pyrrosk_two_pipes_part_15.tsfile
  • Sharding: 16 episode-boundary TsFiles; no episode crosses a file boundary
  • Combined TsFile size: 14.40 MiB
  • Table: pyrrosk_two_pipes
  • Rows: 248,065; episode IDs: 103; TAG devices: 206
  • Time: round(timestamp * 1000) milliseconds, restarting per episode
  • Size ratio versus source Parquet: 0.502

Schema

Role Columns
TIME Time
TAG/device episode_index, task_index
FIELD frame_index, sample_index (renamed from index)
FIELD observation_state_0 through observation_state_13
FIELD action_0 through action_13

The source timestamp column is dropped after Time synthesis because it equals Time / 1000 seconds. The 14-element FLOAT32 vectors are flattened row-major, preserving their full prefixes with dots changed to underscores. No row or numeric vector element is dropped.

Physical encoding

  • FLOAT/DOUBLE: GORILLA + ZSTD
  • INT32/INT64: TS_2DIFF + ZSTD
  • Time: TS_2DIFF + LZ4
  • BOOLEAN, if present in a later revision: RLE + LZ4
  • TAGs: TsFile table device/TAG mechanism

meta/ is preserved and meta/info.json documents the conversion. Video features and openpi_assets remain at the source. Conversion scripts and validation reports are local only and are not part of this upload-ready directory.

Read example

from tsfile import TsFileReader

reader = TsFileReader("data/pyrrosk_two_pipes_part_00.tsfile")
schema = reader.get_all_table_schemas()["pyrrosk_two_pipes"]
columns = [c.get_column_name() for c in schema.get_columns()
           if c.get_column_name() != "Time"]
with reader.query_table("pyrrosk_two_pipes", columns, batch_size=65536) as result:
    batch = result.read_arrow_batch()

Citation

Cite the original dataset and Pyrros Koussios (pyrrosk). The source card does not include a paper or BibTeX entry.

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