BIDI: A classification algorithm with instance difficulty invariance

Shuang Yu, Xiongfei Li, Hancheng Wang, Xiaoli Zhang, Shiping Chen

Abstract: Highlights•Proposed an algorithm that incorporates the classification difficulty of instances.•Proposed the approximate difficulty to reduce the computational cost of difficulty.•Evaluation of our algorithm against ten classifiers demonstrated its superiority.•Evaluation of the approximate difficulty demonstrated its feasibility.