Resonance assignment of the first 98 residues of sensory rhodopsin. (a, c, e) NCACX dataset. (b, d, f) NCOCX dataset. (a, b) MC/SA generated 100 valid results containing 33 distinct solutions. (c, d) Modified NSGA-II generated 8 Pareto-frontier solutions. The two methods showed similar accuracy. (e, f) Combination NSGA-II/MC found 24 Pareto-frontier solutions, thus showing the highest diversity among the three methods.