Assignment-Routing Optimization: Solvers for Problems Under Constraints

Fuente: arXiv
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Autores principales: Qilong, Yuan, Pavelka, Michal
Formato: Preprint
Publicado: 2025
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author Qilong, Yuan
Pavelka, Michal
author_facet Qilong, Yuan
Pavelka, Michal
contents We study the Joint Routing-Assignment (JRA) problem in which items must be assigned one-to-one to placeholders while simultaneously determining a Hamiltonian cycle visiting all nodes exactly once. Extending previous exact MIP solvers with Gurobi and cutting-plane subtour elimination, we develop a solver tailored for practical packaging-planning scenarios with richer constraints.These include multiple placeholder options, time-frame restrictions, and multi-class item packaging. Experiments on 46 mobile manipulation datasets demonstrate that the proposed MIP approach achieves global optima with stable and low computation times, significantly outperforming the shaking-based exact solver by up to an orders of magnitude. Compared to greedy baselines, the MIP solutions achieve consistent optimal distances with an average deviation of 14% for simple heuristics, confirming both efficiency and solution quality. The results highlight the practical applicability of MIP-based JRA optimization for robotic packaging, motion planning, and complex logistics .
format Preprint
id arxiv_https___arxiv_org_abs_2512_18618
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Assignment-Routing Optimization: Solvers for Problems Under Constraints
Qilong, Yuan
Pavelka, Michal
Artificial Intelligence
Primary 90C10, Secondary 90C27, 90B06, 90C57
We study the Joint Routing-Assignment (JRA) problem in which items must be assigned one-to-one to placeholders while simultaneously determining a Hamiltonian cycle visiting all nodes exactly once. Extending previous exact MIP solvers with Gurobi and cutting-plane subtour elimination, we develop a solver tailored for practical packaging-planning scenarios with richer constraints.These include multiple placeholder options, time-frame restrictions, and multi-class item packaging. Experiments on 46 mobile manipulation datasets demonstrate that the proposed MIP approach achieves global optima with stable and low computation times, significantly outperforming the shaking-based exact solver by up to an orders of magnitude. Compared to greedy baselines, the MIP solutions achieve consistent optimal distances with an average deviation of 14% for simple heuristics, confirming both efficiency and solution quality. The results highlight the practical applicability of MIP-based JRA optimization for robotic packaging, motion planning, and complex logistics .
title Assignment-Routing Optimization: Solvers for Problems Under Constraints
topic Artificial Intelligence
Primary 90C10, Secondary 90C27, 90B06, 90C57
url https://arxiv.org/abs/2512.18618