Datasets:

Ardea
/

NEXUS-temporal_hierarchical_multi-modal

@@ -48,7 +48,8 @@ configs:
         path: "meta-*.parquet"
 ---
-# NexusDataset (Temporal Multimodal Slices)
 This dataset is a multi-modal, hierarchical, temporal representation derived from `HuggingFaceFV/finevideo`. It is designed for streaming training where the primary unit is a 10 ms "slice" that aggregates upward into moments (100 ms), seconds (1 s), experiences (10 s), and minutes (60 s).
@@ -64,21 +65,47 @@ This is a working dataset and will be changing and getting more filled out as I
 ## Quickstart
-To stream by video with all modalities grouped together (slices, moments, seconds,
-experiences, minutes, frames, and meta), use the dataset script config:
-Each list is sorted by its per-level index for temporal order.
 ```python
 from datasets import load_dataset
-ds = load_dataset(
-    "Ardea/NEXUS-temporal_hierarchical_multi-modal",
-    "by_video",
-    streaming=True,
-)
 ```
 ## Summary
@@ -210,6 +237,7 @@ Key fields:
 ## Streaming usage
 Slices are ordered by `(video_id, slice_idx)` in each shard, so you can stream them in order. Use `is_video_start` / `is_video_end` or `video_id` changes to detect boundaries.
 ```python
 from datasets import load_dataset

         path: "meta-*.parquet"
 ---
+# NEXUS: Neural Evolution for eXtensible Universal Semantics Dataset
+### (Temporal Multimodal Slices)
 This dataset is a multi-modal, hierarchical, temporal representation derived from `HuggingFaceFV/finevideo`. It is designed for streaming training where the primary unit is a 10 ms "slice" that aggregates upward into moments (100 ms), seconds (1 s), experiences (10 s), and minutes (60 s).
 ## Quickstart
+To stream by video with all modalities grouped together (slices, moments, seconds,
+experiences, minutes, frames, and meta), we need a helper script:
 ```python
+from itertools import groupby
 from datasets import load_dataset
+DATASET = "Ardea/NEXUS-temporal_hierarchical_multi-modal"
+TABLES = ["slices", "moments", "seconds", "experiences", "minutes", "frames"]
+def group_by_video(rows):
+    for video_id, group in groupby(rows, key=lambda r: r["video_id"]):
+        yield video_id, list(group)
+def stream_by_video():
+    table_iters = {
+        name: group_by_video(iter(load_dataset(DATASET, name, streaming=True)))
+        for name in TABLES
+    }
+    table_heads = {name: next(it, None) for name, it in table_iters.items()}
+    meta = load_dataset(DATASET, "meta", streaming=True)
+    for meta_row in meta:
+        video_id = meta_row["video_id"]
+        payload = {"video_id": video_id, "meta": meta_row}
+        for name, group_iter in table_iters.items():
+            head = table_heads[name]
+            while head and head[0] != video_id:
+                head = next(group_iter, None)
+            if head and head[0] == video_id:
+                payload[name] = head[1]
+                table_heads[name] = next(group_iter, None)
+            else:
+                payload[name] = []
+                table_heads[name] = head
+        yield payload
+example = next(stream_by_video())
+print(example["video_id"], len(example["slices"]), len(example["frames"]))
 ```
+Each list is sorted by its per-level index for temporal order.
 ## Summary
 ## Streaming usage
 Slices are ordered by `(video_id, slice_idx)` in each shard, so you can stream them in order. Use `is_video_start` / `is_video_end` or `video_id` changes to detect boundaries.
+For multi-modal by-video streaming, use the Quickstart snippet.
 ```python
 from datasets import load_dataset

dataset_infos.json ADDED Viewed

	@@ -0,0 +1,453 @@

+{
+  "slices": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "slice_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "start_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "audio_l_pcm16": {
+        "dtype": "binary",
+        "id": null,
+        "_type": "Value"
+      },
+      "audio_r_pcm16": {
+        "dtype": "binary",
+        "id": null,
+        "_type": "Value"
+      },
+      "frame_idx": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "moment_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "second_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "experience_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "minute_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "text": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "imu": {
+        "feature": {
+          "feature": {
+            "dtype": "float32",
+            "id": null,
+            "_type": "Value"
+          },
+          "length": -1,
+          "id": null,
+          "_type": "List"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      },
+      "gps": {
+        "feature": {
+          "dtype": "float64",
+          "id": null,
+          "_type": "Value"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      },
+      "temp": {
+        "dtype": "float32",
+        "id": null,
+        "_type": "Value"
+      },
+      "humidity": {
+        "dtype": "float32",
+        "id": null,
+        "_type": "Value"
+      },
+      "baro": {
+        "dtype": "float32",
+        "id": null,
+        "_type": "Value"
+      },
+      "lidar": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "ranges": {
+        "feature": {
+          "dtype": "float32",
+          "id": null,
+          "_type": "Value"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      },
+      "screen": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "data": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "is_video_start": {
+        "dtype": "bool",
+        "id": null,
+        "_type": "Value"
+      },
+      "is_video_end": {
+        "dtype": "bool",
+        "id": null,
+        "_type": "Value"
+      }
+    },
+    "config_name": "slices"
+  },
+  "moments": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "moment_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "start_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "end_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "slice_start_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "slice_end_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "phoneme": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      }
+    },
+    "config_name": "moments"
+  },
+  "seconds": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "second_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "start_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "end_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "moment_start_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "moment_end_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "words": {
+        "feature": {
+          "dtype": "string",
+          "id": null,
+          "_type": "Value"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      }
+    },
+    "config_name": "seconds"
+  },
+  "experiences": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "experience_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "start_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "end_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "second_start_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "second_end_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "statements": {
+        "feature": {
+          "dtype": "string",
+          "id": null,
+          "_type": "Value"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      },
+      "gestures": {
+        "feature": {
+          "dtype": "string",
+          "id": null,
+          "_type": "Value"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      }
+    },
+    "config_name": "experiences"
+  },
+  "minutes": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "minute_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "start_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "end_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "experience_start_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "experience_end_idx": {
+        "dtype": "int32",
+        "id": null,
+        "_type": "Value"
+      },
+      "actions": {
+        "feature": {
+          "dtype": "string",
+          "id": null,
+          "_type": "Value"
+        },
+        "length": -1,
+        "id": null,
+        "_type": "List"
+      }
+    },
+    "config_name": "minutes"
+  },
+  "frames": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "frame_idx": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "frame_time_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "image": {
+        "mode": null,
+        "decode": true,
+        "id": null,
+        "_type": "Image"
+      }
+    },
+    "config_name": "frames"
+  },
+  "meta": {
+    "features": {
+      "video_id": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "duration_ms": {
+        "dtype": "int64",
+        "id": null,
+        "_type": "Value"
+      },
+      "content_fine_category": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "content_metadata": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "content_parent_category": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "original_json_filename": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "original_video_filename": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "resolution": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "text_to_speech_word_count": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_age_limit": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_categories": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_channel": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_channel_follower_count": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_comment_count": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_description": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_like_count": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_tags": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_title": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_upload_date": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      },
+      "youtube_view_count": {
+        "dtype": "string",
+        "id": null,
+        "_type": "Value"
+      }
+    },
+    "config_name": "meta"
+  }
+}