I have to admit that pathology data are really hard to deal with. Whole Slide Images A pathology dataset contains many Whole Slide Images (WSI). WSIs are designed to be like microscope images. Therefore, it also includes images of different magnifications. Level 0 has the largest spatial dimension in all the levels, usually up to ~60000 x 60000. How to properly deal with such huge images is the key problem of pathology data classification. Usually, people choose to use tiling to split a WSI into...