Add files using upload-large-folder tool

README.md

@@ -0,0 +1,186 @@
+---
+license: cc-by-4.0
+tags:
+- coco
+- computer-vision
+- object-detection
+
+configs:
+- config_name: rects
+  default: true
+  data_files:
+  - split: train
+    path: "data/rects/train2017/*.parquet"
+  - split: validation
+    path: "data/rects/val2017/*.parquet"
+
+- config_name: images
+  data_files:
+  - split: train
+    path: "data/images.parquet"
+---
+
+
+
+# COCO-Spatial-Join-1B
+
+## Abstract
+
+**COCO-Spatial-Join-1B** is a large-scale, deterministic **spatial join benchmark** constructed from the **MS COCO 2017** detection annotations and **RPN proposals** produced by **Detectron2 Faster R-CNN (ResNet-50-FPN)**. The benchmark is designed to stress-test spatial join systems under **high-overlap** workloads while providing an unambiguous geometric semantics.
+
+All objects (ground-truth and proposals) are represented as **axis-aligned half-open 3D boxes** in a shared coordinate system. A **global spatial join** can be evaluated over the complete corpus, while the z-dimension construction yields a clean per-image decomposition when desired.
+
+Dataset construction details and the reference builder are available at:
+https://github.com/DANNHIROAKI/COCO-Spatial-Join-1B-Builder
+
+---
+
+## Contents and Scale
+
+### Upstream sources
+
+- **Images and annotations:** MS COCO 2017 `train2017` and `val2017`
+  - `train2017`: 118,287 images
+  - `val2017`: 5,000 images
+- **Ground truth (GT):** all COCO detection annotations, including `iscrowd ∈ {0,1}` (no filtering)
+- **Proposals:** RPN proposals from Detectron2 Faster R-CNN (ResNet-50-FPN) for each image
+
+### Dataset cardinalities
+
+Let $N$ be the number of images:
+- $N = 118{,}287 + 5{,}000 = 123{,}287$
+- **Proposals:** exactly 10,000 proposals per image  
+  Total proposals: $N \times 10{,}000 = 1{,}232{,}870{,}000$
+- **GT:** equals the number of COCO detection annotations (including crowd)
+
+---
+
+## Geometric Model
+
+### Half-open 3D box representation
+
+Each object is represented as a 3D axis-aligned half-open box:
+$$
+b = [x_{\min}, x_{\max}) \times [y_{\min}, y_{\max}) \times [z_{\min}, z_{\max})
+$$
+with strict validity constraints:
+- $x_{\min} < x_{\max}$, $y_{\min} < y_{\max}$, $z_{\min} < z_{\max}$
+- $x,y$ are expressed in the **original COCO image pixel coordinate system**
+- Coordinate precision: `min_x/min_y/max_x/max_y` are stored as **float32**
+
+### z-dimension slicing
+
+Each COCO image is assigned a global integer index $z\_{\text{idx}} \in \{0,\dots,N-1\}$.
+For every object in that image:
+- $z_{\min} = z\_{\text{idx}}$
+- $z_{\max} = z\_{\text{idx}} + 1$
+
+Therefore, each image occupies a disjoint unit-thickness z-slab $[z\_{\text{idx}}, z\_{\text{idx}} + 1)$.
+
+### Intersection predicate (strict overlap, half-open semantics)
+
+Two 3D boxes $b$ and $b'$ **intersect** if and only if they strictly overlap on all dimensions:
+$$
+\max(L_i(b), L_i(b')) < \min(R_i(b), R_i(b')),\quad i \in \{x,y,z\}.
+$$
+This strict inequality implies that **boundary-touching boxes do not intersect**.
+
+---
+
+## Benchmark Tasks
+
+All tasks use the same join predicate: **3D `intersects`** (strict overlap under half-open semantics).
+
+### Task A: GT × PROPOSAL
+
+- Relation $R$: all objects with `type = GT`
+- Relation $S$: all objects with `type = PROPOSAL`
+- Output: ordered pairs $(r,s)$ where $r \in R$, $s \in S$, and `intersects(r, s)` holds
+
+### Task B: PROPOSAL × PROPOSAL (rank split)
+
+Within each image, the 10,000 proposals are partitioned by `rank`:
+
+- Relation $R$: `type = PROPOSAL` and `rank ∈ [1, 5000]`
+- Relation $S$: `type = PROPOSAL` and `rank ∈ [5001, 10000]`
+- Output: ordered pairs $(r,s)$ where $r \in R$, $s \in S$, and `intersects(r, s)` holds
+
+---
+
+## Deterministic Construction Protocol
+
+### Image ordering and global $z\_{\text{idx}}$
+
+All images from COCO 2017 are merged and globally ordered by:
+1. `split` (all `train2017` images first, then all `val2017` images)
+2. `coco_image_id` in ascending order
+
+The $i$-th image in this ordering is assigned $z\_{\text{idx}} = i$ (0-based).
+
+### Model and proposal generation
+
+- Framework: Detectron2 (PyTorch)
+- Model: Faster R-CNN + ResNet-50-FPN
+- Proposals are taken from the **RPN proposal generator** (not ROI head detections)
+- Test-time RPN configuration:
+  - `PRE_NMS_TOPK_TEST = 20000`
+  - `POST_NMS_TOPK_TEST = 20000`
+  - `NMS_THRESH = 1.0` (configured to avoid suppressing candidates)
+
+Each image must produce a candidate pool of at least 10,000 proposals. The final set is obtained by sorting and truncation as described below.
+
+### Inference preprocessing and coordinate mapping
+
+Input preprocessing follows the standard Detectron2 inference pipeline:
+- `ResizeShortestEdge`: shortest edge to 800, longest edge capped at 1333, aspect ratio preserved
+- Standard Detectron2 normalization and tensor layout
+
+RPN proposals are produced in the resized coordinate system. Before writing, each proposal is:
+1. Mapped back to the **original image coordinate system**
+2. Clipped to $[0, \text{width}] \times [0, \text{height}]$
+3. Normalized by the coordinate validity rules below
+
+### Proposal score and deterministic ranking
+
+RPN outputs an `objectness_logit` for each candidate. The stored `score` is:
+$$
+\text{score} = \sigma(\text{objectness\_logit}) = \frac{1}{1+\exp(-\text{logit})}
+$$
+Scores are stored as **float32** in $[0,1]$.
+
+Proposals are first normalized (including float32 conversion and degeneracy handling), then sorted by the following lexicographic key:
+1. `score` (descending)
+2. `(min_x, min_y, max_x, max_y)` (ascending; float32 tuple)
+3. `cand_idx` (ascending; 0-based index in the candidate list, used solely to enforce a strict total order)
+
+The first 10,000 proposals after sorting are retained and assigned:
+- `rank = 1..10000` (in sorted order)
+- `type = PROPOSAL`
+
+---
+
+## Coordinate Normalization Guarantees
+
+Every GT or PROPOSAL box written to disk satisfies:
+
+- $0 \le \text{min\_x} < \text{max\_x} \le \text{width}$
+- $0 \le \text{min\_y} < \text{max\_y} \le \text{height}$
+- `z_max = z_min + 1`
+- All of `min_x/min_y/max_x/max_y/score` are **finite float32** (no NaN or Inf)
+
+Non-finite handling is applied before clipping:
+- `NaN → 0.0`
+- `+Inf → upper bound` (`width` for x, `height` for y)
+- `-Inf → 0.0`
+
+Degenerate boxes (`max ≤ min`) are deterministically repaired in float32:
+- If `max_x ≤ min_x`, set `max_x = nextafter(min_x, +∞)`.  
+  If `max_x > width`, set `max_x = width` and `min_x = nextafter(width, -∞)`.
+- The same rule is applied to the y-dimension using `height`.
+
+---
+
+## File Organization
+
+The dataset is distributed as **Parquet** shards with auxiliary metadata:
+

data/images.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:42ad0c8fb4fc6e056e7faafe95115859e7af77aa39de40b67242f869cd5c4d04
+size 1809455

data/rects/train2017/shard-000000.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:de279bb24c55246087c57d86ecc93726d42945ee8c237c6eef52adc72212c024
+size 331047432

data/rects/train2017/shard-002048.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1d9cdc49f80711e3ac0c5b95cc860753f88879697d3b8271468d01636ab56a12
+size 331320642

data/rects/train2017/shard-003072.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:56d062d63a12effb5b9a815083489370eee9e9be0cdaa882eea0f625bac54e22
+size 331111292

data/rects/train2017/shard-006144.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a3108354bbd65651586a624721db01a6dab18d6ae85a3328f38c3c917e2b4c9f
+size 331225644

data/rects/train2017/shard-007168.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7b0e8ba93be624ba305138d981197025d1b47fe098dcb7e498f89625fdcea997
+size 331235535

data/rects/train2017/shard-008192.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e23f410417226cbaf5e2f160873f303c5241383b35c05f55eb637eb30a1424ea
+size 330850917

data/rects/train2017/shard-013312.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57d761ec86468dad04e5fb8ff18559650f3437e044af3b1dacb478db2d7a5c39
+size 331217267

data/rects/train2017/shard-017408.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5b067d3283a4b429ba0390672476a92f1951862178f48e7bb1d80e58f57b0b5
+size 331320430

data/rects/train2017/shard-019456.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dc9306b2742d94d668fca5af449e52e523d34cf677add2d29f9b79426f349d42
+size 331260907

data/rects/train2017/shard-028672.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b0aca6811c8ff47d282c1c109df165b0ad5b51bcb96c7b9c4572693440d4f422
+size 330965598

data/rects/train2017/shard-030720.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f460df48c1744a0c9341c587ae7e1dc85e1d0a497e1aaacd8730df182f8a301b
+size 331280475

data/rects/train2017/shard-033792.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d332eb76ff1df4f3b1b2936cd1244a33c4bf605b9a1c61d4924f17670d3d7d15
+size 331406030

data/rects/train2017/shard-037888.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:81db7f0a97a69a890548bfcba286f2db53a7b32fec2c3c4298da8de29ddd2586
+size 331046948

data/rects/train2017/shard-043008.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aa8d6dc6b9ade42c93f2906442d43e7f5e14323d1d13ca85eb885d919367fded
+size 331073868

data/rects/train2017/shard-044032.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:67a61cfb018349a809b956863cc5ee26527698e5554363858c996a3ee2e564af
+size 331221736

data/rects/train2017/shard-046080.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f63da4dd3fd6b70598c1be268f01ae8f9e3d4bfb6b0d468aa7081c3f61de7e90
+size 330906936

data/rects/train2017/shard-047104.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7471eb805e77c2daf57c8313cf6ef30ee43d8bc8da03c53349503095d4a262cc
+size 330991149

data/rects/train2017/shard-048128.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3b5cc6b00578f801a2ec5be71fbc4913c1994bc7fbdea04d6021a411d3ebc567
+size 331485059

data/rects/train2017/shard-050176.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1573830870b4735301277ea2aab2521416b8c65e0a4bb9e40c834d88ebcd5c33
+size 331469696

data/rects/train2017/shard-051200.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:163ac5fe38613cbe8d545aeb3aa54437dcdc039eb2e611003d540d4e14a5492a
+size 331282385

data/rects/train2017/shard-052224.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8444a1b85f0bdddf8c83a2b2c16beaf09218b570bf934036fdebbd66c9c1160c
+size 331240872

data/rects/train2017/shard-053248.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6d93299510ae3c8ff1156fafb9f8f68d6899a3302f9458f9ffa42f8edba18cb3
+size 331326628

data/rects/train2017/shard-058368.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4faf9fe99806c9a3135a9bfd209b9bb1591110d3f59b8d3f398e3abfeb5b6dab
+size 331219700

data/rects/train2017/shard-059392.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:130f81eb9d06277f9568140d5b510c62e9c9fc02e24ba076c8ccbe5e184498e1
+size 331294745

data/rects/train2017/shard-060416.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:91358ca5e887b176be95026b1af9eede6bbfc766be13585054c4b4a4e42e6677
+size 331533920

data/rects/train2017/shard-061440.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f98ab3a2c9c2f947cb3d5d9958aa6a6d64d2c19bde3c6016c28be4bef967f15
+size 331302561

data/rects/train2017/shard-063488.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e80a90b428cf1202182fa38e4b7196a5dc104833b3d3e01a08e89bef3a34f92
+size 330971088

data/rects/train2017/shard-067584.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3e9be904ff27f9bfb39b33b106407e3d6181e6244d5d1f0aae3cda46f6672b18
+size 331085959

data/rects/train2017/shard-071680.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0be5436eee7a4f3fecdbf4fd6955338e93f4e6390b780931d47e83f14993e8a2
+size 331139085

data/rects/train2017/shard-072704.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:43b775978025b7430393eda07cfaeb14a63b6b9d4f3d37c6a24f6a79bd90196e
+size 331272766

data/rects/train2017/shard-083968.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:993ae3d871e02656fc63f8992c61e84071daa3f63423fa2cfd3fa64ca7c4da5f
+size 331269632

data/rects/train2017/shard-088064.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2e1bb356fe827830f8b699ca4f618d94c8f1c9c6924117951fef922480c25d22
+size 330934393

data/rects/train2017/shard-089088.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:64ba9010674b61dc086a0f91edc48df467f10f1f8f8727e3030c1cdf5b5b4043
+size 331067172

data/rects/train2017/shard-092160.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f67e7cdff03fadcbfe672ecacf6aa9697bc8e0736a0e101054153ac047a11b9f
+size 331111659

data/rects/train2017/shard-095232.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6c8d4a7149745070dceb8ee06b29f6abda747bfb342ce57523c44acf0de6d1f0
+size 331164532

data/rects/train2017/shard-097280.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:192ec0df063aee8a05194e4382cd5b78d088262918da8da58e159f928877ce7b
+size 330772966

data/rects/train2017/shard-098304.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2b8538e800be2c4f8ec495b8d1e9b76c0b31145828523dd10df2daeb4c57e0f9
+size 330972451

data/rects/train2017/shard-099328.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e0d2dff5738a54babe7ad20e0fafb01d1bc9896062eb9f63b0993a2a5c785a72
+size 331393169

data/rects/train2017/shard-108544.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c6426a3e456ce8c99435c2a13358d1970655a193a4aa0a44f2b255d17067b4b5
+size 331273853

data/rects/train2017/shard-110592.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5be7b6922fb72e17cf3bcc5ae4e34d2ffd33e0e7a90cf54502a4f6649f8b6830
+size 331340976

data/rects/train2017/shard-112640.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:34790b6196dfe3946e798c679e871c308b4fe35ef3e3eebdf1ce7236e672f515
+size 331280844

data/rects/train2017/shard-114688.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3b9c6a4c34b42564235df62c93376d047f2fdd57c448c84be73296f896f8a2e9
+size 330894790

data/rects/train2017/shard-115712.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:60e4e1d5aaa490c76e4fe47b295dfbac046a39d74bf7ef9149f5cc25a8eed674
+size 331118739

data/rects/train2017/shard-116736.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b4922c74130dc6138efc9b7e338bff39b5bed9d33e22f3519cf3181abe5bbf8b
+size 330932780

data/rects/val2017/shard-119311.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1651872e25db46b2d7089e0346817f91ce91db930a68fe1b688cb1559e19ede3
+size 330871675

data/rects/val2017/shard-121359.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1a3e151f7f3f4817f97da86105988b2574f719124ffa15c2b3e30268dc889f1f
+size 331351628

meta/build_manifest.json

@@ -0,0 +1,894 @@
+{
+  "coco_train_json": "instances_train2017.json",
+  "coco_val_json": "instances_val2017.json",
+  "coco_train_json_sha256": "610fce4944abdeb15354cc765333805529359d12d88f2f711393ca586901d01d",
+  "coco_val_json_sha256": "e8c7f7908f1d7278341fae127d0da654f102f11bd7b21d8aeefa635b8c810b6f",
+  "builder_version": "coco-spatial-join-1b-builder-1.0.0",
+  "python_version": "3.10.19",
+  "numpy_version": "2.2.6",
+  "pyarrow_version": "16.1.0",
+  "detectron2_version": {
+    "version": "0.6",
+    "collect_env_info": "-------------------------------  -----------------------------------------------------------------------------------------------\nsys.platform                     linux\nPython                           3.10.19 | packaged by conda-forge | (main, Oct 22 2025, 22:29:10) [GCC 14.3.0]\nnumpy                            2.2.6\ndetectron2                       0.6 @/home/dhy/anaconda3/envs/coco_spatial_1b/lib/python3.10/site-packages/detectron2\nCompiler                         GCC 9.4\nCUDA compiler                    CUDA 11.8\ndetectron2 arch flags            8.9\nDETECTRON2_ENV_MODULE            <not set>\nPyTorch                          2.4.1+cu118 @/home/dhy/anaconda3/envs/coco_spatial_1b/lib/python3.10/site-packages/torch\nPyTorch debug build              False\ntorch._C._GLIBCXX_USE_CXX11_ABI  False\nGPU available                    Yes\nGPU 0,1,2,3                      NVIDIA L40 (arch=8.9)\nDriver version                   575.57.08\nCUDA_HOME                        /usr/local/cuda-11.8\nPillow                           12.1.0\ntorchvision                      0.19.1+cu118 @/home/dhy/anaconda3/envs/coco_spatial_1b/lib/python3.10/site-packages/torchvision\ntorchvision arch flags           3.5, 5.0, 6.0, 7.0, 7.5, 8.0, 8.6\nfvcore                           0.1.5.post20221221\niopath                           0.1.9\ncv2                              4.13.0\n-------------------------------  -----------------------------------------------------------------------------------------------\nPyTorch built with:\n  - GCC 9.3\n  - C++ Version: 201703\n  - Intel(R) oneAPI Math Kernel Library Version 2022.2-Product Build 20220804 for Intel(R) 64 architecture applications\n  - Intel(R) MKL-DNN v3.4.2 (Git Hash 1137e04ec0b5251ca2b4400a4fd3c667ce843d67)\n  - OpenMP 201511 (a.k.a. OpenMP 4.5)\n  - LAPACK is enabled (usually provided by MKL)\n  - NNPACK is enabled\n  - CPU capability usage: AVX512\n  - CUDA Runtime 11.8\n  - NVCC architecture flags: -gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_70,code=sm_70;-gencode;arch=compute_75,code=sm_75;-gencode;arch=compute_80,code=sm_80;-gencode;arch=compute_86,code=sm_86;-gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_90,code=sm_90\n  - CuDNN 90.1\n  - Magma 2.6.1\n  - Build settings: BLAS_INFO=mkl, BUILD_TYPE=Release, CUDA_VERSION=11.8, CUDNN_VERSION=9.1.0, CXX_COMPILER=/opt/rh/devtoolset-9/root/usr/bin/c++, CXX_FLAGS= -D_GLIBCXX_USE_CXX11_ABI=0 -fabi-version=11 -fvisibility-inlines-hidden -DUSE_PTHREADPOOL -DNDEBUG -DUSE_KINETO -DLIBKINETO_NOROCTRACER -DUSE_FBGEMM -DUSE_PYTORCH_QNNPACK -DUSE_XNNPACK -DSYMBOLICATE_MOBILE_DEBUG_HANDLE -O2 -fPIC -Wall -Wextra -Werror=return-type -Werror=non-virtual-dtor -Werror=bool-operation -Wnarrowing -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wno-unused-parameter -Wno-unused-function -Wno-unused-result -Wno-strict-overflow -Wno-strict-aliasing -Wno-stringop-overflow -Wsuggest-override -Wno-psabi -Wno-error=pedantic -Wno-error=old-style-cast -Wno-missing-braces -fdiagnostics-color=always -faligned-new -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-math-errno -fno-trapping-math -Werror=format -Wno-stringop-overflow, LAPACK_INFO=mkl, PERF_WITH_AVX=1, PERF_WITH_AVX2=1, PERF_WITH_AVX512=1, TORCH_VERSION=2.4.1, USE_CUDA=ON, USE_CUDNN=ON, USE_CUSPARSELT=1, USE_EXCEPTION_PTR=1, USE_GFLAGS=OFF, USE_GLOG=OFF, USE_GLOO=ON, USE_MKL=ON, USE_MKLDNN=ON, USE_MPI=OFF, USE_NCCL=1, USE_NNPACK=ON, USE_OPENMP=ON, USE_ROCM=OFF, USE_ROCM_KERNEL_ASSERT=OFF, \n"
+  },
+  "torch_version": "2.4.1+cu118",
+  "cuda_version": "11.8",
+  "cudnn_version": 90100,
+  "seed_root": 12345,
+  "seed_rules": "Per-image seed = (seed_root + z_idx) mod 2^32; applied to Python random, NumPy, torch (and torch.cuda if available).",
+  "determinism_flags": {
+    "seed_root": 12345,
+    "python_random_seed": 12345,
+    "numpy_seed": 12345,
+    "torch_seed": 12345,
+    "cudnn_benchmark": false,
+    "cudnn_deterministic": true,
+    "use_deterministic_algorithms": true,
+    "tf32_matmul": false,
+    "tf32_cudnn": false,
+    "cublas_workspace_config": ":4096:8"
+  },
+  "model_config_id": "COCO-Detection/faster_rcnn_R_50_FPN_3x.yaml",
+  "rpn_pre_nms_topk_test": 20000,
+  "rpn_post_nms_topk_test": 20000,
+  "rpn_nms_thresh": 1.0,
+  "checkpoint_url": "https://dl.fbaipublicfiles.com/detectron2/COCO-Detection/faster_rcnn_R_50_FPN_3x/137849458/model_final_280758.pkl",
+  "checkpoint_sha256": "3c25caca37baabbff3e22cc9eb0923db165a0c18b867871a3bf3570bac9b7ef0",
+  "build_time_utc": "2026-01-22T01:31:10Z",
+  "host_os": "Linux-5.4.0-216-generic-x86_64-with-glibc2.31",
+  "cpu_model": "AMD EPYC 9354 32-Core Processor",
+  "gpu_model": "NVIDIA L40",
+  "gpu_count": 4,
+  "ram_gb": 1007.63,
+  "num_images_total": 123287,
+  "num_proposals_total": 1232870000,
+  "shards": [
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-000000.parquet",
+      "start_z_idx": 0,
+      "end_z_idx": 1024,
+      "num_rows": 10247644
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-001024.parquet",
+      "start_z_idx": 1024,
+      "end_z_idx": 2048,
+      "num_rows": 10247332
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-002048.parquet",
+      "start_z_idx": 2048,
+      "end_z_idx": 3072,
+      "num_rows": 10246997
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-003072.parquet",
+      "start_z_idx": 3072,
+      "end_z_idx": 4096,
+      "num_rows": 10247560
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-004096.parquet",
+      "start_z_idx": 4096,
+      "end_z_idx": 5120,
+      "num_rows": 10247538
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-005120.parquet",
+      "start_z_idx": 5120,
+      "end_z_idx": 6144,
+      "num_rows": 10246689
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-006144.parquet",
+      "start_z_idx": 6144,
+      "end_z_idx": 7168,
+      "num_rows": 10246999
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-007168.parquet",
+      "start_z_idx": 7168,
+      "end_z_idx": 8192,
+      "num_rows": 10247569
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-008192.parquet",
+      "start_z_idx": 8192,
+      "end_z_idx": 9216,
+      "num_rows": 10247730
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-009216.parquet",
+      "start_z_idx": 9216,
+      "end_z_idx": 10240,
+      "num_rows": 10247098
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-010240.parquet",
+      "start_z_idx": 10240,
+      "end_z_idx": 11264,
+      "num_rows": 10247807
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-011264.parquet",
+      "start_z_idx": 11264,
+      "end_z_idx": 12288,
+      "num_rows": 10247379
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-012288.parquet",
+      "start_z_idx": 12288,
+      "end_z_idx": 13312,
+      "num_rows": 10247610
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-013312.parquet",
+      "start_z_idx": 13312,
+      "end_z_idx": 14336,
+      "num_rows": 10247358
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-014336.parquet",
+      "start_z_idx": 14336,
+      "end_z_idx": 15360,
+      "num_rows": 10247887
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-015360.parquet",
+      "start_z_idx": 15360,
+      "end_z_idx": 16384,
+      "num_rows": 10247353
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-016384.parquet",
+      "start_z_idx": 16384,
+      "end_z_idx": 17408,
+      "num_rows": 10247535
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-017408.parquet",
+      "start_z_idx": 17408,
+      "end_z_idx": 18432,
+      "num_rows": 10247491
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-018432.parquet",
+      "start_z_idx": 18432,
+      "end_z_idx": 19456,
+      "num_rows": 10247385
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-019456.parquet",
+      "start_z_idx": 19456,
+      "end_z_idx": 20480,
+      "num_rows": 10247426
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-020480.parquet",
+      "start_z_idx": 20480,
+      "end_z_idx": 21504,
+      "num_rows": 10247549
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-021504.parquet",
+      "start_z_idx": 21504,
+      "end_z_idx": 22528,
+      "num_rows": 10247760
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-022528.parquet",
+      "start_z_idx": 22528,
+      "end_z_idx": 23552,
+      "num_rows": 10247512
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-023552.parquet",
+      "start_z_idx": 23552,
+      "end_z_idx": 24576,
+      "num_rows": 10247395
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-024576.parquet",
+      "start_z_idx": 24576,
+      "end_z_idx": 25600,
+      "num_rows": 10247461
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-025600.parquet",
+      "start_z_idx": 25600,
+      "end_z_idx": 26624,
+      "num_rows": 10247332
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-026624.parquet",
+      "start_z_idx": 26624,
+      "end_z_idx": 27648,
+      "num_rows": 10247255
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-027648.parquet",
+      "start_z_idx": 27648,
+      "end_z_idx": 28672,
+      "num_rows": 10247304
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-028672.parquet",
+      "start_z_idx": 28672,
+      "end_z_idx": 29696,
+      "num_rows": 10247474
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-029696.parquet",
+      "start_z_idx": 29696,
+      "end_z_idx": 30720,
+      "num_rows": 10247324
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-030720.parquet",
+      "start_z_idx": 30720,
+      "end_z_idx": 31744,
+      "num_rows": 10247499
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-031744.parquet",
+      "start_z_idx": 31744,
+      "end_z_idx": 32768,
+      "num_rows": 10247784
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-032768.parquet",
+      "start_z_idx": 32768,
+      "end_z_idx": 33792,
+      "num_rows": 10247165
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-033792.parquet",
+      "start_z_idx": 33792,
+      "end_z_idx": 34816,
+      "num_rows": 10246934
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-034816.parquet",
+      "start_z_idx": 34816,
+      "end_z_idx": 35840,
+      "num_rows": 10247148
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-035840.parquet",
+      "start_z_idx": 35840,
+      "end_z_idx": 36864,
+      "num_rows": 10247651
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-036864.parquet",
+      "start_z_idx": 36864,
+      "end_z_idx": 37888,
+      "num_rows": 10247612
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-037888.parquet",
+      "start_z_idx": 37888,
+      "end_z_idx": 38912,
+      "num_rows": 10247246
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-038912.parquet",
+      "start_z_idx": 38912,
+      "end_z_idx": 39936,
+      "num_rows": 10247165
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-039936.parquet",
+      "start_z_idx": 39936,
+      "end_z_idx": 40960,
+      "num_rows": 10247592
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-040960.parquet",
+      "start_z_idx": 40960,
+      "end_z_idx": 41984,
+      "num_rows": 10247341
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-041984.parquet",
+      "start_z_idx": 41984,
+      "end_z_idx": 43008,
+      "num_rows": 10247297
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-043008.parquet",
+      "start_z_idx": 43008,
+      "end_z_idx": 44032,
+      "num_rows": 10247489
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-044032.parquet",
+      "start_z_idx": 44032,
+      "end_z_idx": 45056,
+      "num_rows": 10247237
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-045056.parquet",
+      "start_z_idx": 45056,
+      "end_z_idx": 46080,
+      "num_rows": 10247447
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-046080.parquet",
+      "start_z_idx": 46080,
+      "end_z_idx": 47104,
+      "num_rows": 10247097
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-047104.parquet",
+      "start_z_idx": 47104,
+      "end_z_idx": 48128,
+      "num_rows": 10247462
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-048128.parquet",
+      "start_z_idx": 48128,
+      "end_z_idx": 49152,
+      "num_rows": 10247168
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-049152.parquet",
+      "start_z_idx": 49152,
+      "end_z_idx": 50176,
+      "num_rows": 10247639
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-050176.parquet",
+      "start_z_idx": 50176,
+      "end_z_idx": 51200,
+      "num_rows": 10247222
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-051200.parquet",
+      "start_z_idx": 51200,
+      "end_z_idx": 52224,
+      "num_rows": 10247496
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-052224.parquet",
+      "start_z_idx": 52224,
+      "end_z_idx": 53248,
+      "num_rows": 10247594
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-053248.parquet",
+      "start_z_idx": 53248,
+      "end_z_idx": 54272,
+      "num_rows": 10247009
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-054272.parquet",
+      "start_z_idx": 54272,
+      "end_z_idx": 55296,
+      "num_rows": 10247380
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-055296.parquet",
+      "start_z_idx": 55296,
+      "end_z_idx": 56320,
+      "num_rows": 10247715
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-056320.parquet",
+      "start_z_idx": 56320,
+      "end_z_idx": 57344,
+      "num_rows": 10247025
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-057344.parquet",
+      "start_z_idx": 57344,
+      "end_z_idx": 58368,
+      "num_rows": 10247098
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-058368.parquet",
+      "start_z_idx": 58368,
+      "end_z_idx": 59392,
+      "num_rows": 10247626
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-059392.parquet",
+      "start_z_idx": 59392,
+      "end_z_idx": 60416,
+      "num_rows": 10247894
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-060416.parquet",
+      "start_z_idx": 60416,
+      "end_z_idx": 61440,
+      "num_rows": 10247925
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-061440.parquet",
+      "start_z_idx": 61440,
+      "end_z_idx": 62464,
+      "num_rows": 10247540
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-062464.parquet",
+      "start_z_idx": 62464,
+      "end_z_idx": 63488,
+      "num_rows": 10247546
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-063488.parquet",
+      "start_z_idx": 63488,
+      "end_z_idx": 64512,
+      "num_rows": 10247380
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-064512.parquet",
+      "start_z_idx": 64512,
+      "end_z_idx": 65536,
+      "num_rows": 10247644
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-065536.parquet",
+      "start_z_idx": 65536,
+      "end_z_idx": 66560,
+      "num_rows": 10247985
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-066560.parquet",
+      "start_z_idx": 66560,
+      "end_z_idx": 67584,
+      "num_rows": 10247622
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-067584.parquet",
+      "start_z_idx": 67584,
+      "end_z_idx": 68608,
+      "num_rows": 10248007
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-068608.parquet",
+      "start_z_idx": 68608,
+      "end_z_idx": 69632,
+      "num_rows": 10247726
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-069632.parquet",
+      "start_z_idx": 69632,
+      "end_z_idx": 70656,
+      "num_rows": 10247072
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-070656.parquet",
+      "start_z_idx": 70656,
+      "end_z_idx": 71680,
+      "num_rows": 10247546
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-071680.parquet",
+      "start_z_idx": 71680,
+      "end_z_idx": 72704,
+      "num_rows": 10247456
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-072704.parquet",
+      "start_z_idx": 72704,
+      "end_z_idx": 73728,
+      "num_rows": 10247313
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-073728.parquet",
+      "start_z_idx": 73728,
+      "end_z_idx": 74752,
+      "num_rows": 10247386
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-074752.parquet",
+      "start_z_idx": 74752,
+      "end_z_idx": 75776,
+      "num_rows": 10247641
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-075776.parquet",
+      "start_z_idx": 75776,
+      "end_z_idx": 76800,
+      "num_rows": 10247642
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-076800.parquet",
+      "start_z_idx": 76800,
+      "end_z_idx": 77824,
+      "num_rows": 10247163
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-077824.parquet",
+      "start_z_idx": 77824,
+      "end_z_idx": 78848,
+      "num_rows": 10247320
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-078848.parquet",
+      "start_z_idx": 78848,
+      "end_z_idx": 79872,
+      "num_rows": 10247311
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-079872.parquet",
+      "start_z_idx": 79872,
+      "end_z_idx": 80896,
+      "num_rows": 10247683
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-080896.parquet",
+      "start_z_idx": 80896,
+      "end_z_idx": 81920,
+      "num_rows": 10247617
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-081920.parquet",
+      "start_z_idx": 81920,
+      "end_z_idx": 82944,
+      "num_rows": 10247179
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-082944.parquet",
+      "start_z_idx": 82944,
+      "end_z_idx": 83968,
+      "num_rows": 10247159
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-083968.parquet",
+      "start_z_idx": 83968,
+      "end_z_idx": 84992,
+      "num_rows": 10247416
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-084992.parquet",
+      "start_z_idx": 84992,
+      "end_z_idx": 86016,
+      "num_rows": 10247426
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-086016.parquet",
+      "start_z_idx": 86016,
+      "end_z_idx": 87040,
+      "num_rows": 10247721
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-087040.parquet",
+      "start_z_idx": 87040,
+      "end_z_idx": 88064,
+      "num_rows": 10247605
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-088064.parquet",
+      "start_z_idx": 88064,
+      "end_z_idx": 89088,
+      "num_rows": 10247620
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-089088.parquet",
+      "start_z_idx": 89088,
+      "end_z_idx": 90112,
+      "num_rows": 10247243
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-090112.parquet",
+      "start_z_idx": 90112,
+      "end_z_idx": 91136,
+      "num_rows": 10247476
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-091136.parquet",
+      "start_z_idx": 91136,
+      "end_z_idx": 92160,
+      "num_rows": 10247635
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-092160.parquet",
+      "start_z_idx": 92160,
+      "end_z_idx": 93184,
+      "num_rows": 10247924
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-093184.parquet",
+      "start_z_idx": 93184,
+      "end_z_idx": 94208,
+      "num_rows": 10247192
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-094208.parquet",
+      "start_z_idx": 94208,
+      "end_z_idx": 95232,
+      "num_rows": 10247334
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-095232.parquet",
+      "start_z_idx": 95232,
+      "end_z_idx": 96256,
+      "num_rows": 10247477
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-096256.parquet",
+      "start_z_idx": 96256,
+      "end_z_idx": 97280,
+      "num_rows": 10247161
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-097280.parquet",
+      "start_z_idx": 97280,
+      "end_z_idx": 98304,
+      "num_rows": 10247316
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-098304.parquet",
+      "start_z_idx": 98304,
+      "end_z_idx": 99328,
+      "num_rows": 10247493
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-099328.parquet",
+      "start_z_idx": 99328,
+      "end_z_idx": 100352,
+      "num_rows": 10247432
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-100352.parquet",
+      "start_z_idx": 100352,
+      "end_z_idx": 101376,
+      "num_rows": 10247550
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-101376.parquet",
+      "start_z_idx": 101376,
+      "end_z_idx": 102400,
+      "num_rows": 10247452
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-102400.parquet",
+      "start_z_idx": 102400,
+      "end_z_idx": 103424,
+      "num_rows": 10247278
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-103424.parquet",
+      "start_z_idx": 103424,
+      "end_z_idx": 104448,
+      "num_rows": 10247601
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-104448.parquet",
+      "start_z_idx": 104448,
+      "end_z_idx": 105472,
+      "num_rows": 10247531
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-105472.parquet",
+      "start_z_idx": 105472,
+      "end_z_idx": 106496,
+      "num_rows": 10247402
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-106496.parquet",
+      "start_z_idx": 106496,
+      "end_z_idx": 107520,
+      "num_rows": 10247274
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-107520.parquet",
+      "start_z_idx": 107520,
+      "end_z_idx": 108544,
+      "num_rows": 10247213
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-108544.parquet",
+      "start_z_idx": 108544,
+      "end_z_idx": 109568,
+      "num_rows": 10247964
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-109568.parquet",
+      "start_z_idx": 109568,
+      "end_z_idx": 110592,
+      "num_rows": 10247499
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-110592.parquet",
+      "start_z_idx": 110592,
+      "end_z_idx": 111616,
+      "num_rows": 10247298
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-111616.parquet",
+      "start_z_idx": 111616,
+      "end_z_idx": 112640,
+      "num_rows": 10247314
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-112640.parquet",
+      "start_z_idx": 112640,
+      "end_z_idx": 113664,
+      "num_rows": 10247622
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-113664.parquet",
+      "start_z_idx": 113664,
+      "end_z_idx": 114688,
+      "num_rows": 10247433
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-114688.parquet",
+      "start_z_idx": 114688,
+      "end_z_idx": 115712,
+      "num_rows": 10247559
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-115712.parquet",
+      "start_z_idx": 115712,
+      "end_z_idx": 116736,
+      "num_rows": 10247213
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-116736.parquet",
+      "start_z_idx": 116736,
+      "end_z_idx": 117760,
+      "num_rows": 10247393
+    },
+    {
+      "split": "train2017",
+      "shard_file": "data/rects/train2017/shard-117760.parquet",
+      "start_z_idx": 117760,
+      "end_z_idx": 118287,
+      "num_rows": 5274286
+    },
+    {
+      "split": "val2017",
+      "shard_file": "data/rects/val2017/shard-118287.parquet",
+      "start_z_idx": 118287,
+      "end_z_idx": 119311,
+      "num_rows": 10247408
+    },
+    {
+      "split": "val2017",
+      "shard_file": "data/rects/val2017/shard-119311.parquet",
+      "start_z_idx": 119311,
+      "end_z_idx": 120335,
+      "num_rows": 10247793
+    },
+    {
+      "split": "val2017",
+      "shard_file": "data/rects/val2017/shard-120335.parquet",
+      "start_z_idx": 120335,
+      "end_z_idx": 121359,
+      "num_rows": 10247409
+    },
+    {
+      "split": "val2017",
+      "shard_file": "data/rects/val2017/shard-121359.parquet",
+      "start_z_idx": 121359,
+      "end_z_idx": 122383,
+      "num_rows": 10247752
+    },
+    {
+      "split": "val2017",
+      "shard_file": "data/rects/val2017/shard-122383.parquet",
+      "start_z_idx": 122383,
+      "end_z_idx": 123287,
+      "num_rows": 9046419
+    }
+  ]
+}