| license: cc-by-4.0 | |
| # LychSim selected dataset | |
| 25,989 images in 5,567 complete intervention groups: outdoor 9,961 images and indoor (including insertion) 16,028 images. Original RGB, geometric outputs, annotations, paired levels, and provenance are preserved. | |
| Complete: all archives and metadata have been uploaded and verified. | |
| The release is stored under lychsim_selected_20261106/. Payload files are losslessly packed into independent Zstandard-compressed tar archives (approximately 8 GiB of original files per shard). All archive members use the original relative paths. Indexes and source checksums are available without extracting the payload. | |
| ~~~bash | |
| hf download Lychsim-projects/data --repo-type dataset --local-dir ./lychsim-data | |
| cd ./lychsim-data/lychsim_selected_20261106 | |
| sha256sum -c ARCHIVE_SHA256SUMS | |
| for shard in archives/*.tar.zst; do tar --zstd -xf "$shard"; done | |
| sha256sum -c SHA256SUMS | |
| ~~~ | |
| Install zstd and GNU tar before extraction. Reading then starts at frames.jsonl; use groups.jsonl to keep paired intervention levels together. No new train/test split is introduced. Keep linked_sample_cluster_id together when constructing splits. | |
| See [the original package README](lychsim_selected_20261106/README.md), [dataset metadata](lychsim_selected_20261106/dataset.json), and [archive manifest](lychsim_selected_20261106/ARCHIVES.json). Source bytes, including annotation formats, are unchanged. The operational .build/ directory is excluded as documented by the package. The existing manual access approval and license settings are retained. | |