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Entropic-Based Robust Vehicle Rental Revenue Management with Substitution and Repositioning
- Zhu Meng
  Zhu Meng
  [email protected]
  https://orcid.org/0009-0007-0474-1550
  College of Management and Economics, Tianjin University, Tianjin 300072, China
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- Chenyi Fu
  Corresponding Author
  Chenyi Fu
  [email protected]
  https://orcid.org/0009-0000-5300-5188
  School of Management, Northwestern Polytechnical University, Xi’an 710129, China
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- Ning Zhu
  Corresponding Author
  Ning Zhu
  [email protected]
  https://orcid.org/0000-0001-8560-5946
  International Institute of Finance, School of Management, University of Science and Technology of China, Hefei 230026, China
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Published Online:June 22, 2026
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Abstract
This paper investigates the practical inventory management challenges faced by the vehicle rental industry, which arise from the random arrival of orders and lead times before demand occurs, as well as the uncertainty and dynamic nature of cancellations ...
Contextual Stochastic Vehicle Routing with Time Windows
- Breno Serrano
  Corresponding Author
  Breno Serrano
  [email protected]
  https://orcid.org/0000-0002-8725-0218
  MIT Center for Transportation & Logistics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; and School of Management, Technical University of Munich, Munich, 80333 Bayern, Germany
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- Alexandre M. Florio
  Alexandre M. Florio
  [email protected]
  https://orcid.org/0000-0002-7593-919X
  Last Mile Planning, Amazon, Bellevue, Washington 98004
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- Stefan Minner
  Stefan Minner
  [email protected]
  https://orcid.org/0000-0001-6127-8223
  School of Management, Technical University of Munich, Munich, 80333 Bayern, Germany; and Munich Data Science Institute, Technical University of Munich, Munich, 80333 Bayern, Germany
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- Maximilian Schiffer
  Maximilian Schiffer
  [email protected]
  https://orcid.org/0000-0003-2682-4975
  School of Management, Technical University of Munich, Munich, 80333 Bayern, Germany; and Munich Data Science Institute, Technical University of Munich, Munich, 80333 Bayern, Germany
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- Thibaut Vidal
  Thibaut Vidal
  [email protected]
  SCALE-AI Chair in Data-Driven Supply Chains, MAGI, Polytechnique Montreal, Montréal, Québec H3T 1J4, Canada
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Published Online:June 22, 2026
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Abstract
We study the vehicle-routing problem with time windows (VRPTW) and stochastic travel times, in which the decision-maker observes related contextual information, represented as feature variables, before making routing decisions. Despite the extensive ...
On the Approximation of Separable Nonconvex Optimization Programs to an Arbitrary Numerical Tolerance
- Claudio Contardo
  Corresponding Author
  Claudio Contardo
  [email protected]
  https://orcid.org/0000-0001-7595-3904
  Department of Mechanical, Industrial and Aerospace Engineering, Concordia University, Montreal, Quebec H3G 2W1, Canada
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- Sandra U. Ngueveu
  Sandra U. Ngueveu
  [email protected]
  https://orcid.org/0009-0002-4353-2106
  Département Électronique, Energie Électrique et Automatique, Université de Toulouse INP, 31029 Toulouse, France
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Published Online:June 19, 2026
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Abstract
We consider the problem of minimizing the sum of a series of univariate (possibly nonconvex) functions on a polyhedral domain. We introduce an iterative method with optimality guarantees to approximate this problem to an arbitrary numerical tolerance. At ...
Machine Learning-Assisted Stochastic Kriging Metamodel for Offline Simulation Online Application
- Haoting Zhang
  Haoting Zhang
  [email protected]
  https://orcid.org/0000-0003-0058-6788
  Department of Industrial Engineering & Operations Research, University of California, Berkeley, Berkeley, California 94720
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- Jinghai He
  Jinghai He
  [email protected]
  https://orcid.org/0000-0002-5458-2048
  Department of Industrial Engineering & Operations Research, University of California, Berkeley, Berkeley, California 94720
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- Rhonda Righter
  Rhonda Righter
  [email protected]
  Department of Industrial Engineering & Operations Research, University of California, Berkeley, Berkeley, California 94720
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  ,
- Zuo-Jun Max Shen
  Zuo-Jun Max Shen
  [email protected]
  Department of Industrial Engineering & Operations Research, University of California, Berkeley, Berkeley, California 94720
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  ,
- Zeyu Zheng
  Corresponding Author
  Zeyu Zheng
  [email protected]
  https://orcid.org/0000-0001-5653-152X
  Department of Industrial Engineering & Operations Research, University of California, Berkeley, Berkeley, California 94720
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Published Online:June 19, 2026
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Abstract
For many real-time decision problems in complex stochastic systems, a decision maker observes the system status online in real time and needs to immediately evaluate the performance of alternative decision choices based on the observed system status. ...
Tackling Arbitrarily Heterogeneous Data in Asynchronous Stochastic Gradient Descent Without Worker Scheduling
- Xiaolu Wang
  Corresponding Author
  Xiaolu Wang
  [email protected]
  https://orcid.org/0000-0002-5267-3464
  Ministry of Education (MOE) Engineering Research Center of Software/Hardware Co-Design and Application, East China Normal University, Shanghai 200062, China
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- Yuchang Sun
  Yuchang Sun
  [email protected]
  Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
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  ,
- Hoi-To Wai
  Hoi-To Wai
  [email protected]
  Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong, Hong Kong SAR, China
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  ,
- Jun Zhang
  Jun Zhang
  [email protected]
  Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
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Published Online:June 16, 2026
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Abstract
We consider the distributed optimization problem with data dispersed across multiple workers under the orchestration of a parameter server. In distributed environments, variations in computation speeds and network conditions across workers often lead to ...

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Andrea Lodi

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ISSN: 1091-9856 (Print)

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