Secondly, the calculated adsorption energies for Pt(111) confirm that the global minimum model found a lowest energy configuration, noted by the lowest adsorption energy at every coverage. An interesting aspect is that the adsorption energies of the global minimum model appear roughly to be a hybrid of those of the two simplistic models. In the low-coverage region (θ < 0.5 ML), adsorption energies of global minimum and fcc-NN models are close to each other. In contrast, those of the global minimum and atop-NN energies are similar in the high-coverage region (θ > 0.5 ML). As coverage increases, we can visually inspect that there is a transition from highcoordination to low-coordination sites in the global minimum model. From this observation, one can speculate this phenomenon is strongly correlated with site-specificity. We can further confirm the site effect based on the global minimum model's site occupancy by categorization with each site's n-fold value. Our model additionally confirmed the occupation of mixed sites as preferred arrangements on Pt, and it confirms that these arrangements will result in lower energy than the occupation of single sites.