RT info:eu-repo/semantics/article T1 Unrelated parallel machine scheduling problem with setup times and additional resources: an enhanced metaheuristic to address resource-related infeasibilities A1 Yepes Borrero, Juan Camilo A1 Alcaraz, Javier A1 López García, Marta Olvido A1 Villaizán Vallelado, Mario K1 GRASP (Greedy Randomised Adaptive Search Procedure) K1 Metaheurística K1 Algoritmos K1 1203.02 Lenguajes Algorítmicos K1 1209 Estadística AB Efficient scheduling tools are essential for managing production environments where both machine availability and additional resource constraints play a significant role. This paper addresses the Unrelated Parallel Machine scheduling problem with setup times and additional resources in the Setups (UPMSR-S), an NP-hard problem that models real-world production settings where setups require limited resources, such as personnel or specialized equipment. We propose an enhanced algorithm designed to better handle resource-related infeasibilities and consistently outperform state-of-the-art methods. This is demonstrated through an extensive computational campaign on 1,000 benchmark instances, with improvements in Relative Percentage Deviation (RPD) exceeding 70% for several instance sizes. The proposed approach is well suited to large production environments involving setup and resource constraints, showing strong performance in challenging scheduling settings. Statistical analysis confirms that the method is highly effective across a wide range of instance sizes and scenarios, with particularly strong performance as the number of jobs and machines increases. PB Springer SN 0254-5330 YR 2026 FD 2026 LK https://uvadoc.uva.es/handle/10324/82300 UL https://uvadoc.uva.es/handle/10324/82300 LA eng NO Annals of Operations Research, 2026 NO Producción Científica DS UVaDOC RD 29-ene-2026