OR Spectrum

We propose a new framework to address the territory design problem of emergency services in collaboration with two police authorities in Europe. Our framework serves as a strategic decision support system to assess different districting layouts, ...

For many variants of vehicle routing and scheduling problems solved by a branch-price-and-cut (BPC) algorithm, the pricing subproblem is an elementary shortest-path problem with resource constraints (SPPRC) typically solved by a dynamic-...

Assortment optimization is a core topic of demand management that finds application in a broad set of different areas including retail, airline, hotel, and transportation industries as well as in the healthcare sector. Hence, the interest in ...

For industries like the cement industry, switching to a carbon-neutral production process is impossible. They must rely on carbon capture, utilization and storage (CCUS) technologies to reduce their production processes’ inevitable carbon dioxide (...${}_{\mathrm{}}$${}_{\mathrm{}}$${}_{\mathrm{}}$${}_{\mathrm{}}$${}_{\mathrm{}}$

Data envelopment analysis (DEA) is a well-established method for measuring efficiency among a comparable group of decision-making units (DMUs). DMUs comprise entities with time-related activities—i.e., inputs and outputs. The concept of DMU is not ...

Effective methods for determining the boundary of the normal class are very useful for detecting anomalies in commercial or security applications—a problem known as anomaly detection. This contribution proposes a nonparametric frontier-based ...

Water pollution is harmful to people’s health and causes great damage to ecology. Cleaning up pollutants in cross-boundary river requires joint action of agents along the river. In this paper, we deal with the polluted river cost sharing problem ...

In this manuscript, we study a benchmark tracking problem when prices evolve through a Binomial model with a random environment. The agent invests a given fund’s capital into different assets in a predetermined market to replicate at each stage of ...

Recent years have witnessed a surge in demand for air cargo transportation. Air cargo terminals initially built for handling the former demand volume start struggling with low operational efficiency and high congestion due to limited capacity. The ...

In this paper, we present a solution method for the multidimensional knapsack problem (MKP) and the knapsack problem with forfeit sets (KPFS) using a population-based matheuristic approach. Specifically, the learning mechanism of the fixed set ...

Correction to Hottenrott A, Grunow M (2019) Flexible layouts for the mixed-model assembly of heterogeneous vehicles. OR Spectrum 41(4): 943-979.