Research Article

Transportation Risk Control of Waste Disposal in the Healthcare System with Two-Echelon Waste Collection Network

Table 4

Comparison between the rules and the PSO algorithm on large-scale instances.

InstanceRulesPSO
GroupID (%)

ISG418225.416572.28151.6−25.15
27936.796211.87153.6−27.77
37906.906754.96159.2−17.05
47938.976103.34151.9−30.08

ISG5111658.0110372.02350.6−12.40
212202.2310307.83383.2−18.38
312052.7810003.89360.2−20.48
412051.0810206.68375.5−18.07

ISG6115798.7613160.92675.3−20.04
215901.4513622.51636.4−16.73
315738.0313781.96673.1−14.19
415956.3013181.95629.1−21.05

Average391.6−20.12

Notes: (1) represents the feasible solution obtained by rules. denotes the global best solution obtained by the PSO algorithm. (2) is the computation time of the PSO algorithm in seconds. (3) .