The dataset viewer is not available for this split.
Error code: StreamingRowsError
Exception: CastError
Message: Couldn't cast
name: string
tasks: struct<b2d-center-ctrl: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, act (... 1597 chars omitted)
child 0, b2d-center-ctrl: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 1, b2d-center-ctrl-target: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 2, b2d-center-wall: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 3, b2d-goal-ctrl
...
dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 7, mw-push: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 8, mw-pick-place: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
total_transitions: int64
total_episodes: int64
noise_max: double
action_dim: int64
at_goal_frac: double
episodes: int64
expert_frac: double
obs_dim: int64
policy: string
horizon: int64
checkpoint: string
mpc: bool
family: string
ep_success: double
eps_max: double
task: string
to
{'task': Value('string'), 'family': Value('string'), 'checkpoint': Value('string'), 'episodes': Value('int64'), 'horizon': Value('int64'), 'obs_dim': Value('int64'), 'action_dim': Value('int64'), 'eps_max': Value('float64'), 'noise_max': Value('float64'), 'expert_frac': Value('float64'), 'mpc': Value('bool'), 'policy': Value('string'), 'ep_success': Value('float64'), 'at_goal_frac': Value('float64')}
because column names don't match
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 149, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 129, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 489, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2818, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2355, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2380, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
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 2369, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
raise CastError(
...<3 lines>...
)
datasets.table.CastError: Couldn't cast
name: string
tasks: struct<b2d-center-ctrl: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, act (... 1597 chars omitted)
child 0, b2d-center-ctrl: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 1, b2d-center-ctrl-target: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 2, b2d-center-wall: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 3, b2d-goal-ctrl
...
dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 7, mw-push: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
child 8, mw-pick-place: struct<dir: string, transitions: int64, episodes: int64, obs_dim: int64, action_dim: int64, ep_succe (... 69 chars omitted)
child 0, dir: string
child 1, transitions: int64
child 2, episodes: int64
child 3, obs_dim: int64
child 4, action_dim: int64
child 5, ep_success: double
child 6, at_goal_frac: double
child 7, policy: string
child 8, checkpoint: string
total_transitions: int64
total_episodes: int64
noise_max: double
action_dim: int64
at_goal_frac: double
episodes: int64
expert_frac: double
obs_dim: int64
policy: string
horizon: int64
checkpoint: string
mpc: bool
family: string
ep_success: double
eps_max: double
task: string
to
{'task': Value('string'), 'family': Value('string'), 'checkpoint': Value('string'), 'episodes': Value('int64'), 'horizon': Value('int64'), 'obs_dim': Value('int64'), 'action_dim': Value('int64'), 'eps_max': Value('float64'), 'noise_max': Value('float64'), 'expert_frac': Value('float64'), 'mpc': Value('bool'), 'policy': Value('string'), 'ep_success': Value('float64'), 'at_goal_frac': Value('float64')}
because column names don't matchNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
Factored-FB play data
Offline datasets for the Factored-FB testbed (Box2D / Metaworld / ManiSkill dev tasks), in the
unified per-episode .npz schema (observation, action, next_observation, reward, terminal, timeout, success). Two subsets, produced by rolling trained TD-MPC2 checkpoints (Box2D +
ManiSkill) or the Metaworld scripted oracle:
play-noise/
Single-goal, exploration-augmented rollouts. Each episode draws a per-episode exploration level
(an expert_frac run clean; the rest add ε-random + Gaussian action noise), runs the full
horizon with no stop-at-success. Diverse states around one task goal — noisy demos.
1.35M transitions, 9 tasks (5 Box2D × 1000 ep, 2 ManiSkill × 3000 ep, 2 Metaworld × 1000 ep).
play-resample/
OGBench-style diverse-goal play: one long continuous episode chains many goals — reach the goal, hold it briefly, then resample a new valid goal (Box2D: not inside a wall, not too close) and continue. No env reset between goals, so goal-relabeling sees a broad goal distribution. (Box2D goal-conditioned tasks; see that subset's manifest for coverage.)
Each <Family>__<task>/ holds buffer/episode_*.npz + meta.json. _videos/ has a rollout
grid per task. Load with env/unified.py::load_unified from the Factored-FB repo.
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