Figure  2 shows that our model consistently outperforms all six algorithms at almost all recall levels and improves the maximum F -score by more than 13.5% relative to MIML (from 28.35% to 32.19%) as well as increases the area under precision-recall curve by more than 37% (from 11.74 to 16.1).
we define: • y r i ∈ {P, N } : r holds for the ith bag or not.