This paper improves upon the refere

This paper improves upon the reference NSGA-II procedure
by removing an instability in its crowding distance operator.
This instability stems from the cases where two or more indi-
viduals on a Pareto front share identical _tnesses. In those
cases, the instability causes their crowding distance to ei-
ther become null, or to depend on the individual's position
within the Pareto front sequence. Experiments conducted
on nine di_erent benchmark problems show that, by com-
puting the crowding distance on unique _tnesses instead of
individuals, both the convergence and diversity of NSGA-II
can be signi_cantly improved.

ผลลัพธ์ (อังกฤษ) 3:

This paper improves upon the reference NSGA - II
procedure by removing an instability in its crowding distance operator.
This instability stems from the cases where two or more indi-viduals
on a front Pareto share identical _ tnesses. In
those cases, the instability causes crowding distance to their ei-ther
become null, or to depend on the individual's position within the
Pareto front sequence.
Experiments conducted on nine di erent _ benchmark problems show that, by com-
puting the crowding distance on unique _ tnesses
instead of individuals, both the convergence and diversity of NSGA - II
_ can be signi cantly improved.