Genetic algorithm for generalized time-window assignment problem

Ali Kansou, Bilal Kanso, Houssein Wehbe, Haydar Bazzi, Ali Mcheik

Abstract


This paper presents a hybrid genetic algorithm (GA) for the generalized time-window assignment problem (GTWAP), a complex artificial intelligence (AI) scheduling challenge that involves assigning agents to resources under strict temporal and capacity constraints. Our method integrates a problem specific heuristics and a repair mechanism to generate feasible and high quality solutions. We provide a mathematical formulation for GTWAP and introduce a new public benchmark set, using CPLEX to obtain exact solutions. Computational experiments demonstrate that our GA is highly competitive with CPLEX, often matching its performance. This effectiveness makes our method a practical and scalable AI-driven tool for complex scheduling in domains like logistics and healthcare.

Keywords


Assignment with time windows; Constructive heuristic; Genetic algorithms; Local search procedure; Multi-resource scheduling

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DOI: http://doi.org/10.11591/ijai.v15.i2.pp1261-1274

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Copyright (c) 2026 Ali Kansou, Bilal Kanso, Houssein Wehbe, Haydar Bazzi, Ali Mcheik

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IAES International Journal of Artificial Intelligence (IJ-AI)
ISSN/e-ISSN 2089-4872/2252-8938 
This journal is published by the Institute of Advanced Engineering and Science (IAES).

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