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A meta-auction for on-demand transportation procurement in industry 5.0 工业 5.0 中按需运输采购的元拍卖
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-28 DOI: 10.1016/j.tre.2024.103842
Su Xiu Xu , Zhiheng Zhao , George Q. Huang , Yifang Ding , Ming Li , Jianghong Feng
The Cyber-Physical Internet (CPI) is a cutting-edge concept that brings together physical systems and cyber technologies to enable seamless interaction between the physical and virtual worlds. This innovative approach is revolutionizing the transportation industry by paving the way for a new era of logistics and transport networks. Introducing CPI into the procurement of transport services is leading to a re-evaluation of fundamental issues such as routing, mode choice and real-time pricing. This paper provides an in-depth discussion on the application of transport services procurement auctions in a CPI environment, with the aim of establishing a novel CPI-based trading platform for transport services using CPI technology, and calls the methodology proposed in this paper a meta-auction. The transport route allocation quandary is simplified into an auction model, where carriers truthfully submit unit route costs, and the winning carrier and pricing are determined using the single-unit Vickrey-Clark-Groves (VCG) method. To address scenarios with multiple carriers per network segment node, this paper proposes the multi-unit VCG auction method. Furthermore, the weighted affine VCG auction method is introduced, considering the weight of each network segment route. All three mechanisms are generalized VCG auctions, ensuring incentive compatibility, budget balance, allocation efficiency, and individual rationality. Case studies validate the effectiveness of the proposed methods, offering managerial insights based on key findings that are valuable for industry professionals and researchers in the CPI domain. This study highlights the transformative potential of CPI to revolutionize auctions for the procurement of transport services and underlines the benefits of combining physical and cyber technologies in auction design.
网络物理互联网(CPI)是一个前沿概念,它将物理系统和网络技术结合在一起,实现了物理世界和虚拟世界之间的无缝互动。这种创新方法为物流和运输网络的新时代铺平了道路,正在彻底改变运输行业。在运输服务采购中引入 CPI 将导致对路线、模式选择和实时定价等基本问题的重新评估。本文深入探讨了 CPI 环境下运输服务采购拍卖的应用,旨在利用 CPI 技术建立一个基于 CPI 的新型运输服务交易平台,并将本文提出的方法称为元拍卖。运输线路分配难题被简化为一个拍卖模型,在该模型中,承运商如实提交单位线路成本,胜出的承运商和定价采用单单位维克雷-克拉克-格罗夫斯(VCG)方法确定。针对每个网段节点有多个运营商的情况,本文提出了多单位 VCG 拍卖方法。此外,考虑到每个网段路由的权重,本文还引入了加权仿射 VCG 拍卖方法。这三种机制都是广义 VCG 拍卖,确保了激励相容、预算平衡、分配效率和个体理性。案例研究验证了所提方法的有效性,并根据主要发现提出了管理见解,这对 CPI 领域的行业专业人士和研究人员很有价值。本研究强调了 CPI 在彻底改变运输服务采购拍卖方面的变革潜力,并强调了在拍卖设计中结合物理和网络技术的益处。
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引用次数: 0
Design and selection of recycling strategy considering consumer preference 考虑消费者偏好,设计和选择回收战略
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-26 DOI: 10.1016/j.tre.2024.103824
Yan-Ting Chen , Ching-Ter Chang
With the escalating issue of plastic pollution, exploring suitable post-consumer plastic waste (PCPW) recycling holds significant importance for global environmental protection. To address this issue, this paper proposes a novel PCPW recycling platform (PRP) that offers two recycling strategies to improve the recycling level of PCPW. Then, we construct a Stackelberg game model to analyze and compare three recycling strategies, i.e., traditional recycling strategies, only trade-in for cash, and trade-in for cash and for new. Meantime, we consider the impact of consumer preference and government subsidies on recycling strategies. Research finding: (1) The operation of PRP increases the value of PCPW, particularly PRP’s only trade-in for cash has the highest recycling price. (2) PRP’s trade-in for cash and for new can attract more consumers to participate in PCPW recycling under certain conditions. (3) PRP’s only trade-in for cash enables recyclers and remanufacturers to reap greater benefits. To ensure the robustness of our research results, we conduct further analysis to explore the impact of corporate social responsibility (CRS) and the hassle cost. The study also provides management implications for promoting PCPW recycling.
随着塑料污染问题的日益严重,探索合适的消费后塑料废弃物(PCPW)回收利用对全球环境保护具有重要意义。针对这一问题,本文提出了一种新型的消费后塑料废弃物回收平台(PRP),该平台提供两种回收策略,以提高消费后塑料废弃物的回收水平。然后,我们构建了一个 Stackelberg 博弈模型,对三种回收策略(即传统回收策略、以旧换新策略、以旧换新策略)进行了分析和比较。同时,我们还考虑了消费者偏好和政府补贴对回收策略的影响。研究结果:(1)"生产者责任计划 "的运行增加了五氯苯的价值,尤其是 "生产者责任计划 "中的 "以旧换新 "回收价格最高。(2) 在一定条件下,以旧换新可吸引更多消费者参与回收。(3) 「以舊換新」計劃讓回收商和再製造商獲得更大利益。为确保研究结果的稳健性,我们进一步分析探讨了企业社会责任(CRS)和麻烦成本的影响。本研究还为促进五氯苯酚回收提供了管理启示。
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引用次数: 0
Transport behavior and government interventions in pandemics: A hybrid explainable machine learning for road safety 大流行病中的交通行为和政府干预:针对道路安全的混合可解释机器学习
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-26 DOI: 10.1016/j.tre.2024.103841
Ismail Abdulrashid , Reza Zanjirani Farahani , Shamkhal Mammadov , Mohamed Khalafalla
During a pandemic, transportation authorities and policymakers face significant challenges in identifying and validating new travel behavior and how it affects traffic crash patterns to develop effective safety strategies. A timely assessment of an emergency incident’s long-term impact and the development of appropriate response strategies are critical for managing future occurrences. This study investigates to answer these research questions (RQs):
RQ1: How do various spatio-temporal risk factors influence traffic crash injury severity during the different phases of the COVID-19 pandemic?
RQ2: What are the key risk factors influencing injury severity in automobile crashes during the pre-pandemic, early pandemic, between the first and second waves of the pandemic, and the post-pandemic era?
RQ3: How do the implemented government policies and interventions during the pandemic affect transport behavior and road safety?
This study presents a hybrid explainable machine learning approach based on eXtreme Gradient Boosting (XGBoost) and SHapley Additive exPlanation (SHAP) to identify influential traffic crash-related risk factors for injury severity. Additionally, we propose a statistical learning approach using a nonlinear multinomial logit model to jointly analyze the count of automobile traffic crashes by injury severity and assess the impact of the COVID-19 pandemic across different phases. Our findings include a detailed analysis of system-level taxonomies across feature components, as well as the use of aggregate SHAP scores to classify crash data into high-level contributing variables during the pre-pandemic, intra-pandemic, and post-pandemic phases. The expected outcomes include insights such as identifying the best times to implement travel restrictions to reduce traffic accidents, understanding shifts in traffic flow patterns across pandemic phases, and determining effective public health interventions that can reduce both traffic accidents and congestion. Furthermore, the study reveals that the initial pandemic phase saw a significant decrease in traffic volume and accident rates. In contrast, the subsequent pandemic and post-pandemic phases saw an increase in severe accidents due to risky driving behaviors, emphasizing the importance of adaptive safety measures.
在大流行病期间,交通管理部门和决策者在识别和验证新的出行行为及其对交通事故模式的影响以制定有效的安全策略方面面临着巨大挑战。及时评估紧急事件的长期影响并制定适当的应对策略对于管理未来发生的紧急事件至关重要。本研究旨在回答以下研究问题:问题 1:在 COVID-19 大流行的不同阶段,各种时空风险因素是如何影响交通事故伤害严重程度的?问题 2:在大流行前、大流行初期、大流行第一波和第二波之间以及大流行后,影响车祸伤害严重程度的关键风险因素是什么?问题 3:大流行期间实施的政府政策和干预措施如何影响交通行为和道路安全?本研究提出了一种基于极梯度提升(XGBoost)和SHAPLE Additive exPlanation(SHAP)的混合可解释机器学习方法,以识别与交通事故相关的受伤严重程度的影响风险因素。此外,我们还提出了一种使用非线性多叉 logit 模型的统计学习方法,以联合分析按伤害严重程度划分的汽车交通事故数量,并评估 COVID-19 大流行病在不同阶段的影响。我们的研究结果包括对各特征组件的系统级分类法进行详细分析,以及使用 SHAP 总分将碰撞事故数据分类为大流行前、大流行中和大流行后阶段的高层次促成变量。预期成果包括:确定实施出行限制以减少交通事故的最佳时机、了解大流行病各阶段交通流模式的变化以及确定可减少交通事故和交通拥堵的有效公共卫生干预措施。此外,研究还显示,在大流行初期,交通流量和交通事故率显著下降。与此相反,在随后的大流行阶段和大流行后阶段,由于危险驾驶行为导致的严重交通事故有所增加,这强调了适应性安全措施的重要性。
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引用次数: 0
Inventory placement with carbon cap-and-trade in guaranteed service supply chains 保障服务供应链中的碳排放限额与交易的库存安排
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-26 DOI: 10.1016/j.tre.2024.103813
Yuan Wang , Jia Shu , Jingjing Su , Lu Zhen
In this paper, we explore the impact of carbon trading on the safety stock placement optimization in multi-echelon supply chains. The carbon emission in each stage of the supply chain is measured through a function of the service time quoted by the stage as a key variable. Adopting the guaranteed service time modelling framework, we develop a safety stock placement model under the carbon cap-and-trade policy to study the complex trade-off among the carbon cap, the carbon price, and the service time. Based on the different relationship between the unit purchasing and selling carbon prices, we derive the tractable formulations of the proposed model using successive mixed-integer programming approximations. A series of observations through the model implementation on a real-world chain data from Willems (2008) are summarized to understand how the carbon cap and price can affect a firm’s safety stock placement and carbon emissions.
本文探讨了碳交易对多梯队供应链中安全库存布局优化的影响。供应链各环节的碳排放量是通过各环节所报的服务时间作为关键变量来衡量的。采用保证服务时间建模框架,我们建立了碳限额交易政策下的安全库存布局模型,以研究碳限额、碳价格和服务时间之间复杂的权衡关系。基于单位碳购买价格和销售价格之间的不同关系,我们利用连续混合整数编程近似法推导出了所提模型的可操作性公式。通过在 Willems(2008 年)提供的真实产业链数据上实施模型,总结了一系列观察结果,以了解碳上限和碳价格如何影响企业的安全库存安排和碳排放。
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引用次数: 0
A simulation-based optimization approach for the recharging scheduling problem of electric buses 电动公交车充电调度问题的模拟优化方法
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-25 DOI: 10.1016/j.tre.2024.103835
Chun-Chih Chiu , Hao Huang , Ching-Fu Chen
This study proposes a simulation-based optimization approach to address the recharging scheduling problem of electric buses to minimize charging waiting time. Poor scheduling could lead to longer waiting times and potentially affect operation schedules regarding time and service quality. This study addresses a simulation-based optimization framework to evaluate various performance metrics during electric bus service, including waiting times, charging costs, and the utilization of charging piles. In this study, we propose a hybrid approach, simplified swarm optimization (SSO), which is an evolutionary algorithm with a backtracking (BT) mechanism and dynamic charging in a simulation framework. Based on the dynamic charging, SSO is used to determine the additional charging in terms of battery capacities, and a BT mechanism is employed to enhance algorithm efficiency and achieve breakthroughs in solution quality. A case study from Taiwan with 43 generated datasets was conducted in deterministic and stochastic situations to compare the effectiveness and efficiency among three charging rules (i.e., full charging rule, flexible charging rule, dynamic charging rule) and two algorithms (i.e., particle swarm optimization and SSO) The results indicate the superior performance in all scenarios by using a statistical test, which offers effective decision support for bus operators’ electric bus recharging scheduling.
本研究提出了一种基于仿真的优化方法来解决电动公交车的充电调度问题,以最大限度地减少充电等待时间。调度不当会导致等待时间延长,并可能影响运营计划的时间和服务质量。本研究采用基于仿真的优化框架来评估电动公交车服务过程中的各种性能指标,包括等待时间、充电成本和充电桩利用率。在这项研究中,我们提出了一种混合方法--简化蜂群优化(SSO),它是一种带有回溯(BT)机制的进化算法,并在仿真框架中实现了动态充电。在动态充电的基础上,利用 SSO 确定电池容量方面的额外充电,并采用 BT 机制提高算法效率,实现解决方案质量的突破。在确定性和随机情况下,利用 43 个生成的数据集对台湾进行了案例研究,比较了三种充电规则(即完全充电规则、灵活充电规则、动态充电规则)和两种算法(即粒子群优化和 SSO)的有效性和效率。
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引用次数: 0
Examining the role of national governance capacity in building the global low-carbon agricultural supply chains 研究国家治理能力在建设全球低碳农业供应链中的作用
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-24 DOI: 10.1016/j.tre.2024.103833
Hua Shang , Li Jiang , Sachin Kumar Mangla , Xiongfeng Pan , Malin Song
The majority of related research has traditionally focused on examining the individual influences of national governance capacity and technological innovation on carbon emissions and economic performance, neglecting the effects and influence mechanisms on carbon efficiency within agricultural supply chains, which is not conducive to advancing a low-carbon transition that includes agricultural concerns. This study addresses these gaps by investigating the correlation between national governance capacity (considering voice and accountability, political stability and absence of violence/terrorism, government effectiveness, regulatory quality, rule of law and corruption control) and agricultural supply chain carbon efficiency and investigating the influence mechanism and mediating role of technological innovation. The relevant findings are twofold. 1) The impact of national governance capacity and its components on agricultural carbon efficiency follows an inverted U-shaped curve. 2) Technological innovation can act as a mediator between national governance capacity and select factors of voice and accountability, government effectiveness and regulatory quality to enhance agricultural supply chain carbon efficiency. The findings offer valuable insights for policymakers and managers in agricultural supply chain enterprises seeking to transition towards low-carbon agriculture.
大多数相关研究历来侧重于考察国家治理能力和技术创新对碳排放和经济表现的单独影响,忽视了对农业供应链中碳效率的影响和影响机制,这不利于推进包括农业问题在内的低碳转型。本研究针对这些不足,研究了国家治理能力(考虑发言权和问责制、政治稳定性和无暴力/恐怖主义、政府效能、监管质量、法治和腐败控制)与农业供应链碳效率之间的相关性,并探讨了技术创新的影响机制和中介作用。相关结论有两方面1)国家治理能力及其构成要素对农业碳效率的影响呈倒 U 型曲线。2)技术创新可以作为国家治理能力与发言权和问责制、政府效能和监管质量等特定因素之间的中介,提高农业供应链的碳效率。研究结果为寻求向低碳农业转型的农业供应链企业决策者和管理者提供了有价值的启示。
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引用次数: 0
Pricing strategies in an M/G/m/m loss system: A case study of Incheon International Airport customer services M/G/m/m损失系统中的定价策略:仁川国际机场客户服务案例研究
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-23 DOI: 10.1016/j.tre.2024.103821
Junseok Park , Ilkyeong Moon
This paper studied the optimal pricing strategy based on a highly realistic pricing scheme in order to maximize the revenue of a service modeled as an M/G/m/m loss system. The blocking probability is considered together to prevent compromising the quality of service. Customers’ willingness-to-pay is regarded to be randomly distributed, indicating price-dependent arrival. Considering the severe complexity of the proposed model, the optimal pricing strategy is numerically investigated through computational experiments based on case studies of two actual services currently operated at Incheon International Airport (Seoul, South Korea). The two services represent a congested and quiet situation, allowing for the analysis of opposite cases. The results of the computational experiments clearly demonstrate distinct optimal strategies for the two contrasting situations. The performance of the two services with their current pricing strategies is evaluated, providing managerial insights for the service providers.
本文研究了基于高度现实的定价方案的最优定价策略,以便最大限度地提高以 M/G/m/m 损失系统为模型的服务收入。同时考虑了阻塞概率,以防止影响服务质量。客户的支付意愿被认为是随机分布的,这表明价格依赖于到达率。考虑到所提模型的严重复杂性,我们根据仁川国际机场(韩国首尔)目前实际运营的两条航线的案例研究,通过计算实验对最优定价策略进行了数值研究。这两条航线分别代表了拥堵和安静两种情况,因此可以对相反的情况进行分析。计算实验的结果清楚地显示了两种截然不同情况下的不同最优策略。对这两种服务在当前定价策略下的表现进行了评估,为服务提供商提供了管理见解。
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引用次数: 0
Towards resilience: Primal large-scale re-optimization 实现复原力:原始大规模重新优化
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-23 DOI: 10.1016/j.tre.2024.103819
El Mehdi Er Raqabi , Yong Wu , Issmaïl El Hallaoui , François Soumis
Perturbations are universal in supply chains, and their appearance has become more frequent in the past few years due to global events. These perturbations affect industries and could significantly impact production, quality, cost/profitability, and consumer satisfaction. In large-scale contexts, companies rely on operations research techniques. In such a case, re-optimization can support companies in achieving resilience by enabling them to simulate several what-if scenarios and adapt to changing circumstances and challenges in real-time. In this paper, we design a generic and scalable resilience re-optimization framework. We model perturbations, recovery decisions, and the resulting re-optimization problem, which maximizes resilience. We leverage the primal information through fixing, warm-start, valid inequalities, and machine learning. We conduct extensive computational experiments on a real-world, large-scale problem. The findings highlight that local optimization is enough to recover after perturbations and demonstrate the power of our proposed framework and solution methodology.
扰动是供应链中的普遍现象,在过去几年中,由于全球事件的影响,扰动的出现变得更加频繁。这些扰动影响着各行各业,并可能对生产、质量、成本/盈利能力和消费者满意度产生重大影响。在大规模情况下,企业需要依靠运营研究技术。在这种情况下,重新优化可以帮助企业模拟多种假设情景,实时适应不断变化的环境和挑战,从而实现复原力。在本文中,我们设计了一个通用且可扩展的复原力再优化框架。我们对扰动、恢复决策和由此产生的重新优化问题进行建模,从而最大限度地提高恢复能力。我们通过固定、热启动、有效不等式和机器学习来利用原始信息。我们在现实世界的大规模问题上进行了广泛的计算实验。实验结果表明,局部优化足以在扰动后恢复,并证明了我们提出的框架和解决方法的强大功能。
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引用次数: 0
Modeling a ride-sourcing market with a third-party platform integrator under batch matching mechanisms 模拟批量匹配机制下的第三方平台集成商乘车外包市场
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-23 DOI: 10.1016/j.tre.2024.103803
Ce Wang, Jintao Ke
This paper develops a mathematical model to characterize a generalized ride-sourcing market with a third-party integrator and multiple competitive ride-sourcing platforms. Different from earlier works which normally assume instant matching strategies, our model can characterize the integrator’s and platforms’ decisions on choosing flexible matching strategies under batch matching mechanisms and their influences on the market equilibrium. Through theoretical analytics and numerical studies, this study reveals that the introduction of a third-party platform integrator is not always beneficial but may be detrimental to the system in certain situations. For example, an inefficient matching strategy chosen by the integrator may lead to a lose-lose situation where both the customers hailing rides through the integrator or the individual platforms experience longer waiting times. In addition, we show that a ride-sourcing platform with a high market share may refuse to join the integrator since the efficiency gains brought by the integrator do not outweigh the losses caused by its losing market share. The managerial insights obtained from this work can assist both the integrator and individual ride-sourcing platforms in developing more efficient operational strategies in terms of pricing and matching strategies.
本文建立了一个数学模型来描述一个由第三方集成商和多个具有竞争力的乘车采购平台组成的广义乘车采购市场。与以往通常假定即时匹配策略的研究不同,我们的模型可以描述集成商和平台在批量匹配机制下选择灵活匹配策略的决策及其对市场均衡的影响。通过理论分析和数值研究,本研究揭示了引入第三方平台集成商并不总是有利的,在某些情况下可能对系统不利。例如,集成商选择的低效匹配策略可能会导致双输局面,即通过集成商叫车的客户或单个平台都会经历更长的等待时间。此外,我们还发现,市场份额较高的乘车外包平台可能会拒绝加入整合者,因为整合者带来的效率收益并不能抵消其失去市场份额所造成的损失。从这项工作中获得的管理见解可以帮助整合者和单个乘车外包平台在定价和匹配策略方面制定更有效的运营战略。
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引用次数: 0
Data-driven collaborative healthcare resource allocation in pandemics 大流行病中数据驱动的协作式医疗资源分配
IF 8.3 1区 工程技术 Q1 ECONOMICS Pub Date : 2024-10-22 DOI: 10.1016/j.tre.2024.103828
Jiehui Jiang , Dian Sheng , Xiaojing Chen , Qiong Tian , Feng Li , Peng Yang
Severe shortages of healthcare resources are major challenges in pandemics, especially in their early stages. To improve emergency management efficiency, this paper proposes a novel rolling predict-then-optimize framework that includes three interactive modules, i.e., data-driven demand prediction, healthcare resource allocation, and parameter rolling update. Such a framework uses historical data to dynamically update the control parameters of the proposed Net-SEIHRD model, which predicts the healthcare needs of each region by jointly considering government interventions and cross-regional travel behaviors. Based on the forecasted healthcare resource demand in real-time, an optimization model is then formulated to realize coordinated resource allocation across multiple regions by minimizing the total generalized cost. To facilitate model solving, the proposed mixed integer nonlinear programming model is converted into an equivalent mixed integer linear model by using some linearization techniques. Finally, the proposed method is applied to the SARS-CoV-2 emergency response and collaborative allocation of healthcare resources in Shanghai, China. The results show that the proposed prediction model can effectively predict the peak and scale of the spread of the virus. Compared with the traditional LM and SEIHR models, the prediction accuracy of the Net-SEIHRD model is improved by 10.76% and 24.11%, respectively. Moreover, coordinated relief activities across regions, such as patient transfer and drug-sharing can improve the efficiency of pandemic control and save social costs.
医疗资源的严重短缺是大流行病的主要挑战,尤其是在其早期阶段。为提高应急管理效率,本文提出了一种新颖的滚动预测-优化框架,其中包括三个互动模块,即数据驱动的需求预测、医疗资源分配和参数滚动更新。这种框架利用历史数据动态更新所提出的 Net-SEIHRD 模型的控制参数,该模型通过联合考虑政府干预和跨区域旅行行为来预测各区域的医疗需求。在实时预测医疗资源需求的基础上,建立优化模型,通过最小化广义总成本实现跨区域的协调资源分配。为便于模型求解,利用一些线性化技术将所提出的混合整数非线性编程模型转换为等效的混合整数线性模型。最后,将提出的方法应用于中国上海的 SARS-CoV-2 应急响应和医疗资源协同分配。结果表明,所提出的预测模型能有效预测病毒传播的峰值和规模。与传统的 LM 和 SEIHR 模型相比,Net-SEIHRD 模型的预测准确率分别提高了 10.76% 和 24.11%。此外,跨区域的协调救援活动,如病人转运和药物共享,可以提高疫情控制的效率,节约社会成本。
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引用次数: 0
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Transportation Research Part E-Logistics and Transportation Review
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