Language Table (LeRobot) — Task-Pruned, Reindexed Subset

This release is a task-pruned subset of the original IPEC-COMMUNITY/language_table_lerobot. We subsampled by task text and rebuilt the package so it remains internally consistent (indices, splits, stats, paths).

• Robot: xArm
• Modality: RGB video + states + actions
• FPS / Resolution: 10 FPS, 360×640, AV1
• License: apache-2.0 (inherits from source)

What’s different in this subset

• Kept ~0.85% of unique tasks (uniform random over task strings).
• Capped at ≤ 8 trajectories per kept task.
• Unified camera key to observation.images.image (source often used observation.images.rgb).
• Reindexed episodes to [0..N-1] and rewrote episode_index in each Parquet; rebuilt task_index from task text.
• Rebuilt meta/:
  • info.json (totals, splits, chunk counts),
  • tasks.jsonl (compact mapping of task text → task_index),
  • episodes.jsonl (new indices/paths/lengths with source_episode_index provenance),
  • stats.json (numeric columns recomputed from kept data; image stats under the unified key).

Pixels live in MP4s under videos/.../{video_key}/...; Parquet holds numeric/time-series only.

Dataset Description

This dataset was created using LeRobot.

• Source dataset: IPEC-COMMUNITY/language_table_lerobot
• Homepage: More Information Needed
• Paper: More Information Needed
• License: apache-2.0

Quick stats (this release)

• Episodes: 222,845
• Frames: 3,637,100
• Tasks (unique): 108,446
• Videos: 222,845 (one per episode)
• Chunks: 223 (with chunks_size=1000)
• FPS: 10

Dataset Structure

meta/info.json:

{
  "codebase_version": "v2.0",
  "robot_type": "xarm",
  "total_episodes": 222845,
  "total_frames": 3637100,
  "total_tasks": 108446,
  "total_videos": 222845,
  "total_chunks": 223,
  "chunks_size": 1000,
  "fps": 10,
  "splits": {
    "train": "0:222845"
  },
  "data_path": "data/chunk-{episode_chunk:03d}/episode_{episode_index:06d}.parquet",
  "video_path": "videos/chunk-{episode_chunk:03d}/{video_key}/episode_{episode_index:06d}.mp4",
  "features": {
    "observation.state": {
      "dtype": "float32",
      "shape": [
        8
      ],
      "names": {
        "motors": [
          "x",
          "y",
          "z",
          "roll",
          "pitch",
          "yaw",
          "pad",
          "gripper"
        ]
      }
    },
    "action": {
      "dtype": "float32",
      "shape": [
        7
      ],
      "names": {
        "motors": [
          "x",
          "y",
          "z",
          "roll",
          "pitch",
          "yaw",
          "gripper"
        ]
      }
    },
    "timestamp": {
      "dtype": "float32",
      "shape": [
        1
      ],
      "names": null
    },
    "frame_index": {
      "dtype": "int64",
      "shape": [
        1
      ],
      "names": null
    },
    "episode_index": {
      "dtype": "int64",
      "shape": [
        1
      ],
      "names": null
    },
    "index": {
      "dtype": "int64",
      "shape": [
        1
      ],
      "names": null
    },
    "task_index": {
      "dtype": "int64",
      "shape": [
        1
      ],
      "names": null
    },
    "observation.images.image": {
      "dtype": "video",
      "shape": [
        360,
        640,
        3
      ],
      "names": [
        "height",
        "width",
        "rgb"
      ],
      "info": {
        "video.fps": 10.0,
        "video.height": 360,
        "video.width": 640,
        "video.channels": 3,
        "video.codec": "av1",
        "video.pix_fmt": "yuv420p",
        "video.is_depth_map": false,
        "has_audio": false
      }
    }
  }
}