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PCT
====
This is a reproduction of the paper: [PCT: Point cloud transformer](http://arxiv.org/abs/2012.09688).
# Performance
| Task | Dataset | Metric | Score - Paper | Score - DGL (Adam) | Time(s) - DGL |
|-----------------|------------|----------|------------------|-------------|-------------------|
| Classification | ModelNet40 | Accuracy | 93.2 | 92.1 | 740.0 |
| Part Segmentation | ShapeNet | mIoU | 86.4 | 85.6 | 390.0 |
+ Time(s) are the average training time per epoch, measured on EC2 g4dn.12xlarge instance w/ Tesla T4 GPU.
+ We run the code with the preprocessing used in [PointNet++](../pointnet). We can only get 84.5 for classification if we use the preprocessing described in the paper:
> During training, a random translation in [0.2, 0.2], a random anisotropic scaling in [0.67, 1.5] and a random input dropout were applied to augment the input data.
# How to Run
For point cloud classification, run with
```python
python train_cls.py
```
For point cloud part-segmentation, run with
```python
python train_partseg.py
```