| # Download and Setup |
|
|
| Return to the [dataset card](README.md) for coverage and an initial download example. |
|
|
| The download entry point is |
| [insailab/OccStress](https://huggingface.co/datasets/insailab/OccStress). |
| The [package index](packages.json) lists archive paths, availability, file counts, |
| unpacked sizes and archive SHA256 values. Each archive is independent, not a |
| split volume; extract selected archives into the same root. Asset shards target |
| 2 GiB before compression and are grouped by dataset, track and upstream source. |
|
|
| ## Verified Downloads From the Code Checkout |
|
|
| From the OccStress code checkout, this workflow selects an immutable |
| dataset revision, downloads only the requested track, and verifies archive |
| sizes and SHA256 checksums: |
|
|
| ```bash |
| python -m pip install -e '.[download]' |
| python tools/list_data_packages.py --fetch --dataset waymo --track manual > selection.json |
| python tools/download_data.py --selection selection.json \ |
| --output-dir /datasets/OccStress-download |
| ``` |
|
|
| Replace `waymo` with `nuscenes` or `carla`, and `manual` with `upstream` or `all` |
| as needed. Keep the selection and download receipt with the evaluation record. |
| Only packages marked `available` can be downloaded with this tool. Re-running |
| reuses verified archives; `--verify-only` checks a download without network access. |
| Use a separate download/extraction directory for each dataset revision. |
|
|
| ## Hub CLI Downloads |
|
|
| To download all published files with the Hub CLI: |
|
|
| ```bash |
| python -m pip install huggingface_hub |
| hf download insailab/OccStress --repo-type dataset \ |
| --local-dir /datasets/OccStress-download |
| ``` |
|
|
| For a smaller download, this example selects Waymo manual assets and the |
| corresponding protocols/metadata. The published package index records the |
| complete archive set for each selection. |
|
|
| ```bash |
| hf download insailab/OccStress --repo-type dataset \ |
| --local-dir /datasets/OccStress-download \ |
| --include README.md DOWNLOAD.md FORMAT.md EXTERNAL_DATA.md DISTRIBUTION.md packages.json \ |
| 'manifests/*' 'metadata/common.tar.zst' 'metadata/OccStress-Waymo.tar.zst' \ |
| 'archives/manual/OccStress-Waymo/*.tar.zst' |
| ``` |
|
|
| Metadata packages contain all protocols for their dataset. Running an upstream |
| or position-sweep protocol additionally requires the corresponding asset shards. |
| Position sweeps reuse manual/upstream assets; they have no duplicate voxel packs. |
|
|
| ## Extraction and External Dependencies |
|
|
| Downloading files does not extract archives or obtain external GT. Use a |
| separate directory for original dependencies: |
|
|
| ```bash |
| export OCCSTRESS_DATA_ROOT=/datasets/OccStress |
| export OCCSTRESS_EXTERNAL_ROOT=/datasets/OccStress-external |
| mkdir -p "$OCCSTRESS_DATA_ROOT" |
| set -euo pipefail |
| find /datasets/OccStress-download/metadata /datasets/OccStress-download/archives \ |
| -type f -name '*.tar.zst' -print0 | \ |
| while IFS= read -r -d '' archive; do |
| tar --zstd -xf "$archive" --no-same-owner -C "$OCCSTRESS_DATA_ROOT" |
| done |
| ``` |
|
|
| The extraction example uses Bash, GNU tar and zstd. The archives contain |
| relative paths directly under `meta/`, `protocols/`, `occ/` and `events/`; do |
| not strip a path component. Keep `manifests/` and the documentation beside |
| those directories if you also want the release records in the extracted tree. |
| Archive checksums refer to the compressed files, not individual NPZ assets. |
|
|
| In the OccStress code checkout, follow [EXTERNAL_DATA.md](EXTERNAL_DATA.md) to |
| mount authorized Occ3D GT and official info files, or prepare CARLA's canonical |
| GT. Then check the dataset you intend to use: |
|
|
| ```bash |
| python tools/prepare_external_data.py check --dataset nuscenes --trust-pickle |
| python tools/prepare_external_data.py check --dataset waymo --trust-pickle |
| python tools/prepare_external_data.py check --dataset carla --trust-pickle |
| ``` |
|
|
| These are independent commands; only run the checks for datasets you prepared. |
| Model evaluation also requires the selected forecaster's environment and |
| checkpoint. Upstream 3D weights are needed only to regenerate exports, not to |
| consume the provided predictions. Use the model-specific instructions in the |
| code release. |
|
|
| This is a file-based benchmark consumed by OccStress adapters, not an Arrow |
| table to open directly with `datasets.load_dataset`. Protocol PKLs must come |
| from a trusted source; do not unpickle arbitrary downloaded files. |
|
|
