Comments on 'Fast and scalable search of whole-slide images via self-supervised deep learning'

Chen et al. [Chen2022] recently published the article "Fast and scalable search of whole-slide images via self-supervised deep learning" in Nature Biomedical Engineering. The authors call their method "self-supervised image search for histology", short SISH. The paper is not easily readable, and many important details are buried under ambiguous descriptions. Incremental modification of Yottixel - Yottixel introduced the concept of "mosaic" through a customized clustering and selection process [Kalra2020a]. While Chen et al. frequently mention "Yottixel" and "mosaic," they only acknowledge once that they have followed the Yottixel's mosaic generation process.