| # Dataset Viewer Migration |
|
|
| ## Goal |
|
|
| Expose canonical and pre-standard recordings as separate Hub configurations so |
| users do not mistake metadata-incomplete historical material for canonical |
| standard data. |
|
|
| ## Why this is not applied in v0.2.0 |
|
|
| The current repository places canonical MP4 files directly in |
| `Standard_Time_Lapses/` and supporting provenance holdings beneath |
| `Standard_Time_Lapses/Provenance/`. A broad `data_dir` configuration could |
| therefore ingest noncanonical provenance videos. |
|
|
| Hugging Face supports multiple configurations and folder-local video metadata, |
| but the exact direct-file glob and metadata discovery behavior should be tested |
| through a Hub pull request before changing the public default configuration. |
|
|
| ## Proposed pull-request test |
|
|
| 1. Add a folder-local canonical metadata file whose `file_name` values are |
| relative to `Standard_Time_Lapses/`. |
| 2. Add a folder-local pre-standard metadata file with explicit |
| `collection_tier = pre_standard` and `is_canonical = false`. |
| 3. Add two README configurations: |
| - `canonical` — default, direct MP4 files only |
| - `pre_standard` — separate historical subset |
| 4. Use a direct-file glob for canonical MP4 files so the `Provenance/` subtree |
| is excluded. |
| 5. Confirm the PR preview reports the exact active-index counts, currently 338 |
| canonical and 129 pre-standard rows, with zero provenance videos and zero |
| unindexed direct files. |
| 6. Confirm folder-local metadata is attached to every expected row. |
| 7. Merge only after Viewer and Parquet generation succeed. |
|
|
| ## Candidate YAML for PR testing |
|
|
| This block is a test proposal, not the current card configuration: |
|
|
| ```yaml |
| configs: |
| - config_name: canonical |
| default: true |
| data_dir: Standard_Time_Lapses |
| data_files: |
| - split: archive |
| path: "*.mp4" |
| drop_labels: true |
| - config_name: pre_standard |
| data_dir: Pre_Standard_Time_Lapses |
| data_files: |
| - split: archive |
| path: "*.mp4" |
| drop_labels: true |
| ``` |
|
|
| If folder-local metadata is not discovered with the direct-file glob, do not |
| broaden the glob. Instead, create explicit Parquet manifests for the two |
| configurations so row membership is unambiguous. |
|
|
| ## Split terminology |
|
|
| Use `archive` rather than `train` if supported by the Viewer build. Neither |
| configuration should imply an official machine-learning evaluation split. |
|
|
