Ornelas, F.; Santiago, A.; Martínez, S.I.; Ponce-Flores, M.P.; Terán-Villanueva, J.D.; Balderas, F.; Rocha, J.A.C.; García, A.H.; Laria-Menchaca, J.; Treviño-Berrones, M.G. The Internet Shopping Optimization Problem with Multiple Item Units (ISHOP-U): Formulation, Instances, NP-Completeness, and Evolutionary Optimization. Mathematics 2022, 10, 2513. https://doi.org/10.3390/math10142513
Random uniform instances for the ISHOP-U.
New format of the instances (2 July 2023).