Before revision:  By introducing algorithmic stability theory to pairwise differential privacy, our theoretical analysis does   not require convex pairwise loss functions, which means that our method is general to both convex and non-convex conditions.
After revision:  By introducing algorithmic stability theory to pairwise differential privacy, our theoretical analysis doeson-average stability not require convex pairwise loss functions, which means that our method is general to both convex and non-convex conditions.