In this paper we propose a path based mathematical formulation and solve it using a Branch-and-Price algorithm. We demonstrate that, unlike flow based approaches, our formulation is more easily extended to handl
A Branch-and-Price Algorithmfor Multi-mode Resource LevelingEamonn T. Coughlan1, Marco E. L¨ ubbecke2, and Jens Schulz11Technische Universit¨ at Berlin, Institut f¨ ur Mathematik,Straße d. 17. Juni 136, 10623 Berlin, Germany{coughlan,jschulz}@math.tu-berlin. de2Technische Universit¨...
Hence, advanced algorithms are needed to solve the 2E-IRP heuristically and optimally. This paper proposes a novel exact branch-and-price algorithm for the 2E-IRP. The contributions are threefold: • We propose a mathematical model for the 2E-IRP, where customers can be visited from any ...
A Branch-and-Price Algorithm for Multi-mode Resource Leveling 227 Our Contribution. We approach the turnaround scheduling from both ends. Besides presenting a heuristic which improves on the results reported in [MMS10], we formulate a mixed integer programwhich is based on working shifts, and th...
Mrad, M., Meftahi, I. & Haouari, M. (2013), `A branch-and-price algorithm for the two-stage guillotine cutting stock problem', Journal of the Operational Research Society 64(5), 629-637.Mrad M, Meftahi I, and Haouari M 2012 A branch-and-price algorithm for the two stage ...
molten iron allocation problem as an integer programming model and then reformulate it as a set partitioning model by applying the Dantzig–Wolfe decomposition. We solve the problem using a column generation-based branch-and-price algorithm. Since the ...
and availabilities. We present a branch-and-price algorithm to solve this problem. The pricing subproblems in column generation are formulated with context-free grammars that are able to model complex rules in the construction of feasible shifts for an employee. We present results for a large set...
A Branch-and-Price Algorithm for Robust Drone-Vehicle Routing Problem with Time Windows 带时间窗鲁棒无人机-车辆路径问题的分支价格算法 相关领域 车辆路径问题 无人机 计算机科学 分支机构和价格 布线(电子设计自动化) 数学优化 算法 整数规划 数学 嵌入式系统 遗传学 生物 ...
Paquette, J. , Cordeau, J.-F. , Laporte, G. , Pascoal, M.M.B. , 2013. Combining multicriteria analysis and tabu search for dial-a-ride problems. Transp. Res. Part B: Methodol. 52, 1–16 . Qu, Y. , Bard, J.F. , 2015. A branch-and-price-and-cut algorithm for heterogene...
A new branch-and-price algorithm for Minimum Latency Problem is proposed. • The new algorithm relies on new features for the ng-path relaxation. • Experiments shows that several previously open instances can now be solved. • The new features can be potentially applied to other routing ...