Figure 25
Objective function. (a) e = d2(f1, V2) + d2(f2,V1) + d2(f3, V1) and (b) e = d2(f1, V2) + d2(f3, V2) + d2(f2, V1). Configuration of V1,V2 in a) creates the partition P1 ={f1} and P2 = {f2,f3} while the configuration in (b) causes the partition P1 = {f1, f3} and P2 = {f2}.