A Decomposition-Based Multiobjective Evolutionary Algorithm with Adaptive Weight Adjustment

Figure 2

The adaptive weight vector adjustment. Assume, , are the current optimal solutions of the corresponding subproblem of the weigh vectors , respectively. (a) Deleting strategy: and are the dominated solutions, and and are firstly deleted; , is the most crowded solution, and is deleted. (b) Adding strategy: , , , and are dominated solutions, and , , , and are firstly deleted; , is the thinnest solution, is added.

(a) Deleting strategy

(b) Adding strategy