Diffusion Probabilistic Models for 3D Point Cloud Generation
learning generative models for point clouds is quite chal-lenging. Prior research has explored point cloud generation via GANs [1, 22, 19], auto-regressive models [21], flow-based models [25] and so on. While remarkable progress has been made, these methods have some inherent limita-tions for modeling point clouds. For instance, the training
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