Goto

Collaborating Authors

 spectrum


Supplementary Material Unsupervised Polychromatic Neural Representation for CT Metal Artifact Reduction

Neural Information Processing Systems

These metals are supposed as Titanium. Detailed parameters of the acquisition geometry can be found in Table 1. This sample is 3D cone-beam data. The estimated spectrum is illustrated in Figure 1 ( Right). 2 2 Additional Details of Baselines In our experiments, we compare our proposed method against eight baseline MAR approaches. Specifically, it learns the prior distribution of metal-free CT images with a generative model in order to infer the lost sinogram in the metal-affected regions.



Mitigating the Popularity Bias of Graph Collaborative Filtering: A Dimensional Collapse Perspective

Neural Information Processing Systems

Graph Collaborative Filtering (GCF) is widely used in personalized recommendation systems. However, GCF suffers from a fundamental problem where features tend to occupy the embedding space inefficiently (by spanning only a low-dimensional subspace).