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Exact Algorithms for Two-Dimensional Knapsack Problems: A Unified Framework with New Benchmark Results
- Sunkanghong Wang
  Sunkanghong Wang
  [email protected]
  https://orcid.org/0009-0000-2003-2112
  Guangdong Provincial Key Laboratory of Computer Integrated Manufacturing System, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510000, China; and Department of Logistics and Maritime Studies, Faculty of Business, The Hong Kong Polytechnic University, Hong Kong, China
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- Roberto Baldacci
  Roberto Baldacci
  [email protected]
  https://orcid.org/0000-0003-0938-5798
  College of Science and Engineering, Hamad Bin Khalifa University, Doha, Qatar
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- Fabio Furini
  Fabio Furini
  [email protected]
  https://orcid.org/0000-0002-1839-5827
  Department of Computer, Control, and Management Engineering “Antonio Ruberti”, Sapienza University of Rome, 00185 Rome, Italy
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- Lijun Wei
  Corresponding Author
  Lijun Wei
  [email protected]
  https://orcid.org/0000-0002-5685-4940
  Guangdong Provincial Key Laboratory of Computer Integrated Manufacturing System, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510000, China
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- Qiang Liu
  Qiang Liu
  [email protected]
  https://orcid.org/0000-0003-3561-6318
  Guangdong Provincial Key Laboratory of Computer Integrated Manufacturing System, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510000, China
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Published Online:October 23, 2026
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Abstract
This paper investigates two-dimensional knapsack problems modeled as the Generalized Two-Dimensional Knapsack Problem (G2KP), a variant not previously studied in the literature. The importance of the G2KP lies in its crucial role in designing Branch-Price-...
Machine Learning Measure-Supported Empirical Studies: A Survey
- Wei Hu
  Wei Hu
  [email protected]
  https://orcid.org/0000-0002-4252-9805
  School of Economics and Management, Tongji University, Shanghai 200092, China; and Laboratory of High Quality Urban Development and Strategic Decision, Tongji University, Shanghai 200092, China
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- Wenjie Huang
  Wenjie Huang
  [email protected]
  https://orcid.org/0000-0002-4476-8930
  Department of Economics, Shenzhen MSU-BIT University, Shenzhen 518172, China
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- Yidi Liu
  Yidi Liu
  [email protected]
  https://orcid.org/0000-0002-7285-0405
  School of Management and Economics and Shenzhen Finance Institute, The Chinese University of Hong Kong, Shenzhen 518172, China
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- Bingqing Song
  Corresponding Author
  Bingqing Song
  [email protected]
  https://orcid.org/0000-0002-1740-3960
  School of Economics and Management, Beijing Jiaotong University, Beijing 100044, China
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- Mengfan Xuan
  Mengfan Xuan
  [email protected]
  https://orcid.org/0000-0001-7808-6519
  Department of Economics, Shenzhen MSU-BIT University, Shenzhen 518172, China
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- Sijia Zhou
  Sijia Zhou
  [email protected]
  https://orcid.org/0000-0002-3126-1305
  Department of Electronic Commerce, Southeast University, Nanjing 211189, China
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- Xin Li
  Corresponding Author
  Xin Li
  [email protected]
  https://orcid.org/0000-0002-0041-3134
  Department of Management and Marketing, The Hong Kong Polytechnic University, Hong Kong
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Published Online:October 20, 2026
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Abstract
Machine learning and data science techniques have been widely used in practice and have received significant attention. In research settings, business scholars have begun to adopt machine learning as methodological tools. This paper reviews the literature ...
Scalable Multistage Stochastic Optimization for Freight Procurement in Transportation-Inventory Systems
- Lingxiao Wu
  Lingxiao Wu
  [email protected]
  https://orcid.org/0000-0002-7440-0571
  Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hong Kong
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- Wenxuan Shan
  Corresponding Author
  Wenxuan Shan
  [email protected]
  https://orcid.org/0000-0001-9763-0671
  School of Systems Science, Beijing Jiaotong University, Beijing 100044, China
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- Yossiri Adulyasak
  Yossiri Adulyasak
  [email protected]
  https://orcid.org/0000-0002-6996-0742
  Department of Logistics and Operations Management, HEC Montréal, Montréal, Quebec H3T 2A7, Canada; and GERAD, Montréal, Quebec H3T 1J4, Canada
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- Jean-François Cordeau
  Jean-François Cordeau
  [email protected]
  https://orcid.org/0000-0002-4963-1298
  Department of Logistics and Operations Management, HEC Montréal, Montréal, Quebec H3T 2A7, Canada; and GERAD, Montréal, Quebec H3T 1J4, Canada
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Published Online:October 20, 2026
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Abstract
The procurement of freight services is an important element for the supply chain management of a shipper (i.e., a manufacturer or retailer) that sources transportation services from the third-party logistics market. Motivated by a practical freight ...
Revenue Maximization for Seaport Terminal Operations Considering Multimodal Cargo Flows
- Mohammad Sadegh Kazemi
  Mohammad Sadegh Kazemi
  [email protected]
  https://orcid.org/0000-0002-4996-5431
  Cameron School of Business, University of North Carolina Wilmington, Wilmington, North Carolina 28403
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- Xinchang Wang
  Corresponding Author
  Xinchang Wang
  [email protected]
  https://orcid.org/0000-0001-5434-7024
  Department of Finance and Management Science, Carson College of Business, Washington State University, Pullman, Washington 99163
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Published Online:October 16, 2026
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Abstract
We study the optimal pricing problem for operations at a seaport terminal within a multimodal transport network, where the terminal operator sets differentiated prices for processing cargoes arriving via and transferred to various modes of transport. The ...
A Novel and Efficient Formulation and Solution Approach for the Region Coverage Problem with Identical Circles
- Qinghua Wu
  Qinghua Wu
  [email protected]
  https://orcid.org/0009-0006-2164-1650
  School of Management, Huazhong University of Science and Technology, Wuhan 430074, China
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- Minxuan Li
  Minxuan Li
  [email protected]
  https://orcid.org/0000-0001-5576-5826
  School of Management, Huazhong University of Science and Technology, Wuhan 430074, China
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- Xiangjing Lai
  Corresponding Author
  Xiangjing Lai
  [email protected]
  https://orcid.org/0000-0002-1101-3056
  School of Business, Nanjing University of Information Science and Technology, Nanjing 210044, China
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- Jin-Kao Hao
  Jin-Kao Hao
  [email protected]
  https://orcid.org/0000-0001-8813-4377
  LERIA, Université d’Angers, Angers Cedex 01 49045, France
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- Yuzhuo Qiu
  Yuzhuo Qiu
  [email protected]
  https://orcid.org/0000-0002-9772-1546
  School of Business, Nanjing University of Information Science and Technology, Nanjing 210044, China
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Published Online:October 16, 2026
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Abstract
The problem of covering a two-dimensional region with identical circles of minimal radius (CRICMR) is a classic optimization problem with many relevant real-world applications. However, due to the nonconvexity and the multiply-connected nature of the ...

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