Datasets:

THULab
/

8ml_vial_place_30fps

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 68, 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.

8ml_vial_place_30fps (TsFile)

TsFile conversion of the LeRobot v3.0 yam teleoperation dataset ttotmoon/8ml_vial_place_30fps.

Original dataset: https://huggingface.co/datasets/ttotmoon/8ml_vial_place_30fps
Author: ttotmoon
License: Apache 2.0
Robot type: yam
Task: place the vial into the stand
Created with: LeRobot-style metadata (codebase_version v3.0)
Modalities: Time-series
Dropped / not included: the source timestamp column (redundant with Time) and the camera video streams (not uploaded; see Conversion Notes).

Dataset Description

This dataset contains teleoperated yam-arm demonstrations for placing an 8 ml vial into a stand.


Robot type	`yam`
Tasks	1 (`task_index=0`)
Episodes	197
Frames / TsFile rows	229,860
Sampling rate	30 fps
Original cameras	`observation.images.head_camera`, `observation.images.left_wrist_camera`, `observation.images.right_wrist_camera`

Each frame records a 14-dimensional robot state and a 14-dimensional action. State and action indices are aligned with the original dataset card: left arm joints 0-5, left gripper, right arm joints 0-5, and right gripper.

Conversion Notes

Converted to TsFile with the generic LeRobot converter.

One TsFile for the whole train split. All 197 episodes are stored in data/vial_place_8ml_30fps.tsfile. The source columns episode_index and task_index are TAG columns (the TsFile device dimension). Query one episode with WHERE episode_index=N, or one task with WHERE task_index=0.
Vector columns flattened to single-precision FLOAT, preserving the source column name (. -> _, element index appended):
- observation.state [14] -> observation_state_0 .. observation_state_13
- action [14] -> action_0 .. action_13
Scalar state kept. index is renamed to sample_index.
Time. Time = round(timestamp * 1000) ms, restarting per episode. The source timestamp column is dropped because it equals Time / 1000 seconds. frame_index is kept.
Videos are NOT included in this repository. The original camera streams remain in the source dataset: https://huggingface.co/datasets/ttotmoon/8ml_vial_place_30fps/tree/main/videos
meta/ is mirrored from the source with meta/info.json rewritten to describe the converted TsFile schema and video policy. Aside from the redundant timestamp column noted above, no numeric time-series rows are dropped.

Schema

Column	Role	Type
`Time`	TIME (ms)	INT64
`episode_index`	TAG	INT64
`task_index`	TAG	INT64
`frame_index`	FIELD	INT64
`sample_index`	FIELD	INT64
`observation_state_0 .. observation_state_13`	FIELD	FLOAT
`action_0 .. action_13`	FIELD	FLOAT

Read Example

# Read data/vial_place_8ml_30fps.tsfile with the Apache TsFile SDK.

Downloads last month: 57

Total file size:

15.1 MB