15 papers · ranked by Valyu relevance
Samar I. Farghaly, Hala M. Khayal, Ibrahim M. Algohary, Mahmoud A. Eissa + 5 more
As mobile communication systems continue to evolve to support higher data rates, ultra-low latency, and greater reliability, the effective management of Physical Cell Identities (PCI) becomes increasingly important. The pool of available identifiers is limited-504 in fourth-generation networks and 1008 in…
Zhuo Dai, Yefu Zhou, Bibhas Chandra Giri
In supply chain management, the location of facilities, inventory control, and vehicle routing are three key components. This paper incorporates a two-warehouse inventory system into the location- inventory-routing problems (LIRPs) and develops LIRP models with two warehouses in one-level, two-level, and three-level…
Patrik Waldmann, Michael DeGiorgio
SCIP (Solving Constraint Integer Programs) is a powerful and versatile optimization solver and framework that can handle mixed integer linear programs, mixed integer quadratic programs, and general mixed integer non-linear programs with a large range of constraints (). While SCIP can be configured in many ways, its…
Jingsi Lin, Mohammad Waqar Ali Asad, Erkan Topal, Ping Chang + 1 more
Production scheduling models for open-pit mining complexes determine the optimal sequence for extracting mining blocks while adhering to technical and operational constraints. Although various mathematical models are available in the literature, solving them for large-scale operations remains computationally intensive.…
Xuan Lin
This paper presents a comparative study of data-driven acceleration techniques for mixed-integer bilinear programs (MIBLPs) applied to robot motion planning. MIBLPs combine discrete decision variables and nonlinear constraints, making them computationally challenging for real-time robotics applications. We investigate…
Alejandro Arenas-Vasco, Juan Carlos Rivera, Maria Gulnara Baldoquín, Yangming Zhou
This paper presents a new formulation and valid constraints for a periodic capacitated vehicle routing problem with multiple depots, heterogeneous fleet, and hard time-windows (MDHFPCVRP-TW). The problem raises from a real-world application in the vending machine industry in Medellín, Colombia. Our main contribution is…
Luigi Catacuzzeno, Maurizio G. Cavaliere, Antonio Michelucci
Pump-Leak (P-L) models are powerful tools in membrane and cellular physiology, providing a quantitative framework to understand how cells regulate intracellular ion concentrations, cell volume, and membrane potential thorugh ion transport mechanisms. However, constructing a P-L model for a specific cell type is…
Leena Ghrayeb, Amy Cohn, Ruiwei Jiang, Alex Peahl
The United States spends approximately $111 billion annually on maternity care but has the worst maternal mortality rate among peer high-income nations. Recent studies suggest that outdated prenatal care guidelines may be a cause for this. In response to the growing need for modernized prenatal care standards, national…
Adilanmu Sitahong, Zheng Lu, Yiping Yuan, Peiyin Mo + 2 more
The Line Balancing Problem (LBP) is a classic optimization topic in production management, aiming to improve efficiency through task allocation. With the transformation of the manufacturing industry towards intelligence, customization, and sustainability, its research scope has been significantly expanded. This study…
Xiaodong Meng, Cai Chen, Jie Ni, Hao Wang
As semiconductor process nodes shrink to 3 nm and beyond, traditional optical proximity correction (OPC) and resolution enhancement technologies (RETs) can no longer meet the high patterning precision needs of advanced chip manufacturing due to the sub-wavelength lithography limits. Inverse lithography technology…
Parth Brahmbhatt, David L. Cole, Victor M. Zavala, Styliani Avraamidou
Using Graph Modeling and Multi-Parametric Programming Authors: Parth Brahmbhatt, David L. Cole, Victor M. Zavala, Styliani Avraamidou Benders decomposition is a widely used method for solving large and structured optimization problems, but its performance is affected by the repeated solution of subproblems. We propose…
Trung Hieu Tran, Thu Ba T. Nguyen
Sustainable agricultural production and waste management, i.e., stopping burning agricultural waste at fields and utilising the agricultural waste to produce biomass energy for improving the quality of environment, and enhancing the development of regional economy and society, have recently posed challenges due to…
Yidong Wang, Songpo Yang
The railway hub with multiple stations has been more common with the expansion of the railway network. It is imperative to investigate the utilization of multiple stations to meet the travel demand of urban residents. This paper focuses on railway hubs and abstracts the division of labor among multiple stations as an…
Di Liu, Mengchi Li, Yushun Lei, Pei Yu + 3 more
In order to address the problem of efficiently distributing to multiple demand points within the city and multiple distribution centers on the urban fringes, this paper considers decision-making issues such as the selection of distribution centers and the planning of delivery routes. With the objective of minimizing…
Shuangyuan Shi, Chang Liu, Lvjiang Yin, Hegen Xiong + 3 more
While the static integrated process planning and scheduling (IPPS) problem is theoretically well-established, its practical application is limited in unpredictable manufacturing environments demanding dynamic adaptability. This paper proposes a dynamic IPPS problem considering stochastic rework (IPPS-SR), whose…