Solving a Novel Inventory Location Model with Stochastic Constraints and (𝑅,𝑠,𝑆) Inventory Control Policy

Table 1

Summary results. Comparison between the results obtained by movements 𝑚₁ and 𝑚₂.

Instance	𝑥𝑚1	𝜎𝑚1 (%)	Time𝑚1 (sec)	𝑥𝑚2	𝜎𝑚2 (%)	Time𝑚2 (sec)	Gap (%)
𝐶1FC−25	151541.81	1.57%	305.93	142772.05	0.69%	94.62	5.79%
𝐶1FC+25	176910.48	0.76%	175.37	172204.30	0.50%	46.83	2.66%
𝐶1TC−25	155167.37	7.69%	97.86	125920.71	9.85%	86.94	18.85%
𝐶1TC+25	173094.71	7.54%	289.57	164272.51	9.61%	104.37	5.10%
𝐶1HC−25	144888.67	8.96%	223.16	134974.87	11.98%	79.43	6.84%
𝐶1HC+25	185303.83	6.05%	166.17	173147.78	7.57%	88.09	6.56%
𝐶1OC−25	164188.72	1.48%	155.14	155644.07	0.67%	64.94	5.20%
𝐶1OC+25	163959.14	1.39%	60.80	157637.04	0.30%	67.82	3.86%
𝐶1𝑅1	164081.02	7.75%	203.51	152860.21	16.25%	87.88	6.84%
𝐶1𝑅2	226197.19	5.71%	239.07	228169.26	11.13%	249.08	−0.87%
𝐶1𝑅3	300915.27	3.25%	217.26	301631.38	6.89%	198.21	−0.24%
𝐶2FC−25	142217.21	0.43%	235.52	123147.56	2.31%	114.04	13.41%
𝐶2FC+25	168438.53	0.33%	121.61	142471.58	1.52%	90.45	15.42%
𝐶2TC−25	146509.00	4.64%	218.86	124372.47	14.23%	199.12	15.11%
𝐶2TC+25	161718.90	6.10%	294.69	136471.36	15.16%	67.86	15.61%
𝐶2HC−25	137153.56	7.16%	240.17	114363.85	17.62%	82.98	16.62%
𝐶2HC+25	172214.43	4.57%	94.59	148850.52	11.69%	65.94	13.57%
𝐶2OC−25	155132.44	1.61%	181.48	133414.40	0.83%	53.26	14.00%
𝐶2OC+25	156367.93	1.39%	62.21	133270.49	0.73%	68.75	14.77%
𝐶2𝑅1	154938.46	9.34%	216.25	132817.52	10.40%	69.38	14.28%
𝐶2𝑅2	197953.21	7.59%	327.43	198309.61	7.06%	164.28	−0.18%
𝐶2𝑅3	267045.25	4.54%	254.97	266821.85	4.58%	259.85	0.08%