Add chapter timestamps

README.md

@@ -136,6 +136,7 @@ Multiple target formats are provided for different modeling approaches.
 |--------|-------------|
 | `audio_path` | Path to the .mp3 file of the video. |
 | `chapter_titles` | A list of chapter titles corresponding to each segment. |
+| `chapter_timestamps` | A list of chapter start times in seconds (e.g., `[0.0, 25.0, 269.0]`). |
 | `channel_id` | The YouTube channel ID which this video belongs to. |
 | `video_id` | The YouTube video ID. |
 | `speaker_category` | Speaker classification: `single`, `single_weak`, or `multiple`. |

data/partitions/yt_seg.test.json

@@ -1,3 +1,3 @@
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data/partitions/yt_seg.train.json

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data/partitions/yt_seg.val.json

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