Breast density Chaos Feature extraction Mammography SVM Breast cancer Classification Deep learning Hyperbolic sine Image encryption Image segmentation Mammograms Mass segmentation Medical image PCNN Plant recognition Politisches System Rechtsstaat Ultrasound image A priori constraints Adaptive context network Aggregated pyramid attention module Automated mass segmentation Automatic segmentation BOW Bidirectional spiking cortical model (Bi-SCM) Boundary effect Branch-attention module Breast cancer diagnosis Breast mass segmentation