Remove episode outcome metadata fields and overlays

README.md

@@ -37,6 +37,7 @@ This subset requires all three camera streams, robot state/action data, camera i
 and task labels. Episodes with more than 1 cm of base translation are excluded, as are
 three source episodes with unreadable head-camera video. All retained source frames are preserved.
 The source dataset contains additional episodes and modalities outside this processed subset.
+The source annotations do not provide episode success/failure labels.
 
 ## Format
 
@@ -71,29 +72,6 @@ rows = np.fromfile("<key>.bin", dtype="<f8").reshape(metadata["num_steps"], 32)
 `dataset_info.json` summarizes the release. `shards.jsonl` provides archive sizes,
 episode counts, and SHA-256 checksums. Episode metadata contains only public data fields.
 
-## Episode outcomes
-
-`metadata/episode_outcomes.jsonl` provides one metadata record per episode, joined by
-`episode_id`. The fields are `episode_outcome` (`success`, `failure`, or `unknown`)
-and `episode_outcome_source` (label provenance). A schema is provided alongside it.
-
-All **142,685** retained episodes have `episode_outcome: "unknown"` and
-`episode_outcome_source: "not_provided"`. The available source task annotations do
-not include explicit episode success/failure labels. Unknown must not be treated as
-success or failure. Task instructions and successful data conversion do not establish
-whether the robot completed the task; this release does not invent those labels.
-
-The existing TAR episode JSON members predate this metadata addition. Merge the overlay
-into each episode's metadata when loading; video and binary payloads are unchanged:
-
-```python
-with open("metadata/episode_outcomes.jsonl", encoding="utf-8") as stream:
-    outcome_by_id = {row["episode_id"]: row for row in map(json.loads, stream)}
-metadata.update(outcome_by_id[metadata["episode_id"]])
-```
-
-`dataset_info.json` records the overlay counts and SHA-256 checksum.
-
 ## License and attribution
 
 This processed release retains the upstream **Creative Commons Attribution-NonCommercial-ShareAlike

dataset_info.json

@@ -19,21 +19,5 @@
       "hours": 231.44475925925926
     }
   ],
-  "format": "WebDataset tar shards; one .mp4, .bin and .json per episode",
-  "episode_outcomes": {
-    "file": "metadata/episode_outcomes.jsonl",
-    "schema": "metadata/episode_outcomes.schema.json",
-    "join_key": "episode_id",
-    "field": "episode_outcome",
-    "provenance_field": "episode_outcome_source",
-    "episodes": 142685,
-    "counts": {
-      "success": 0,
-      "failure": 0,
-      "unknown": 142685
-    },
-    "sha256": "1a5b5774af59471335e6b13560057541cc6951424dde4f9156e31b28d52c92d1",
-    "note": "Available source task annotations contain no explicit per-episode success/failure label. Outcomes are unknown; action instructions and successful data conversion are not evidence of task success.",
-    "archive_members_updated": false
-  }
+  "format": "WebDataset tar shards; one .mp4, .bin and .json per episode"
 }

metadata/episode_outcomes.jsonl

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1a5b5774af59471335e6b13560057541cc6951424dde4f9156e31b28d52c92d1
-size 22544230

metadata/episode_outcomes.schema.json

@@ -1,29 +0,0 @@
-{
-  "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "title": "Per-episode task outcome metadata overlay",
-  "type": "object",
-  "additionalProperties": false,
-  "required": [
-    "episode_id",
-    "episode_outcome",
-    "episode_outcome_source"
-  ],
-  "properties": {
-    "episode_id": {
-      "type": "string",
-      "pattern": "^episode-[0-9a-f]{64}$"
-    },
-    "episode_outcome": {
-      "type": "string",
-      "enum": [
-        "success",
-        "failure",
-        "unknown"
-      ]
-    },
-    "episode_outcome_source": {
-      "type": "string"
-    }
-  },
-  "description": "Join to the archive episode JSON by episode_id. Source labels describe task outcomes, not processing or action-quality checks. Unknown means no explicit source outcome was provided; do not treat it as success or failure."
-}