首页 > 最新文献

Logistics最新文献

英文 中文
Simulation-Based Assessment of Hyperconnected Megacity Parcel Logistics 基于仿真的超级互联大城市包裹物流评估
Pub Date : 2024-07-02 DOI: 10.3390/logistics8030066
Sara Kaboudvand, Benoit Montreuil
Background: The concept of Hyperconnected Megacity Parcel Logistics (HMPL) was introduced in 2018 and aims to enhance the efficiency, responsiveness, resilience, and sustainability of parcel movements in megacities. However, evaluating such fundamental solutions presents challenges and requires a comprehensive understanding of all stakeholders and decisions involved. Methods: This study introduces a discrete-event agent-based simulation platform that encompasses critical stakeholders and addresses various levels of decision-making. This platform provides an opportunity to evaluate key decisions within an HMPL structure. Results: To demonstrate the capability of the simulator, we assess the impact of package routing and consolidation strategies facilitated by HMPL compared to traditional practices. Preliminary findings suggest that increased interconnection among nodes in HMPL reduces transit times, thereby enabling tighter customer delivery services. However, examining different consolidation heuristics reveals potential trade-offs between handling and shipping costs under fixed shipment schedules, prompting further investigation into dynamic shipment services. Conclusions: The findings of this study suggest that the benefits of innovative approaches in a complex environment, such as parcel logistics, cannot be evaluated in isolation from other decisions. Accurate assessment of the ultimate outcomes and underlying trade-offs requires multi-faceted models that incorporate all key variables.
背景:超级互联特大城市包裹物流(HMPL)的概念于 2018 年提出,旨在提高特大城市包裹运输的效率、响应能力、弹性和可持续性。然而,评估此类根本性解决方案存在挑战,需要全面了解所有利益相关者和相关决策。方法:本研究引入了一个基于离散事件代理的模拟平台,该平台涵盖了重要的利益相关者,并解决了不同层次的决策问题。该平台为评估 HMPL 结构中的关键决策提供了机会。结果:为了证明模拟器的能力,我们评估了 HMPL 与传统做法相比对包裹路由和合并策略的影响。初步研究结果表明,HMPL 中节点间的互联增加缩短了转运时间,从而实现了更紧密的客户交付服务。不过,对不同合并启发式方法的研究表明,在固定装运计划下,处理和装运成本之间可能存在权衡,这促使对动态装运服务进行进一步研究。结论:本研究的结果表明,在包裹物流等复杂环境中,不能脱离其他决策孤立地评估创新方法的效益。要对最终结果和基本权衡进行准确评估,需要建立包含所有关键变量的多方面模型。
{"title":"Simulation-Based Assessment of Hyperconnected Megacity Parcel Logistics","authors":"Sara Kaboudvand, Benoit Montreuil","doi":"10.3390/logistics8030066","DOIUrl":"https://doi.org/10.3390/logistics8030066","url":null,"abstract":"Background: The concept of Hyperconnected Megacity Parcel Logistics (HMPL) was introduced in 2018 and aims to enhance the efficiency, responsiveness, resilience, and sustainability of parcel movements in megacities. However, evaluating such fundamental solutions presents challenges and requires a comprehensive understanding of all stakeholders and decisions involved. Methods: This study introduces a discrete-event agent-based simulation platform that encompasses critical stakeholders and addresses various levels of decision-making. This platform provides an opportunity to evaluate key decisions within an HMPL structure. Results: To demonstrate the capability of the simulator, we assess the impact of package routing and consolidation strategies facilitated by HMPL compared to traditional practices. Preliminary findings suggest that increased interconnection among nodes in HMPL reduces transit times, thereby enabling tighter customer delivery services. However, examining different consolidation heuristics reveals potential trade-offs between handling and shipping costs under fixed shipment schedules, prompting further investigation into dynamic shipment services. Conclusions: The findings of this study suggest that the benefits of innovative approaches in a complex environment, such as parcel logistics, cannot be evaluated in isolation from other decisions. Accurate assessment of the ultimate outcomes and underlying trade-offs requires multi-faceted models that incorporate all key variables.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"67 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141687343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Humanitarian Logistics Prioritization Models: A Systematic Literature Review 人道主义后勤优先排序模型:系统文献综述
Pub Date : 2024-06-07 DOI: 10.3390/logistics8020060
María Fernanda Carnero Quispe, Amanda Silveira Couto, Irineu de Brito Junior, Luiza Ribeiro Alves Cunha, Regiane Máximo Siqueira, H. Yoshizaki
Background: Disasters have caused suffering across the world throughout history. Different types of disaster events can manifest themselves in different ways, originating from natural phenomena, human actions and their interconnected interactions. In recent years, organizations in charge of disaster management have faced a series of challenges in humanitarian logistics, leading to an increasing consideration of the use of models of prioritization, in most multi-criteria models, to define the best alternatives for more assertive and strategic decision-making. Methods: This article aims to conduct a systematic review of the literature on the application of prioritization models in humanitarian logistics. To this end, an analysis was carried out of 40 articles, indexed in the Scopus or Web of Science databases. Results: The descriptive analysis revealed that the majority of applications are aimed at dealing with sudden-onset natural-induced disasters. However, there are still gaps in relevant areas, such as addressing inventory management problems at a tactical decision level. Conclusions: The development of prioritization models necessitates the integration of various methodologies, combining optimization models with multi-criteria decision analysis to yield superior outcomes. It is advised to incorporate four distinct criteria—efficiency, effectiveness, equity, and sustainability—to ensure a comprehensive assessment of the decision-making process.
背景:古往今来,灾害给全世界带来了苦难。不同类型的灾害事件会以不同的方式表现出来,它们源于自然现象、人类行为及其相互关联的相互作用。近年来,负责灾害管理的组织在人道主义后勤方面面临着一系列挑战,导致人们越来越多地考虑使用优先排序模型,其中大多数是多标准模型,以确定最佳替代方案,从而做出更果断、更具战略性的决策。方法:本文旨在对人道主义物流中优先排序模型应用的文献进行系统回顾。为此,对 Scopus 或 Web of Science 数据库收录的 40 篇文章进行了分析。结果显示描述性分析表明,大多数应用旨在应对突发的自然灾害。然而,在相关领域仍存在差距,如在战术决策层面解决库存管理问题。结论优先级模型的开发需要整合各种方法,将优化模型与多标准决策分析相结合,以产生更优的结果。建议结合四个不同的标准--效率、效果、公平和可持续性,以确保对决策过程进行全面评估。
{"title":"Humanitarian Logistics Prioritization Models: A Systematic Literature Review","authors":"María Fernanda Carnero Quispe, Amanda Silveira Couto, Irineu de Brito Junior, Luiza Ribeiro Alves Cunha, Regiane Máximo Siqueira, H. Yoshizaki","doi":"10.3390/logistics8020060","DOIUrl":"https://doi.org/10.3390/logistics8020060","url":null,"abstract":"Background: Disasters have caused suffering across the world throughout history. Different types of disaster events can manifest themselves in different ways, originating from natural phenomena, human actions and their interconnected interactions. In recent years, organizations in charge of disaster management have faced a series of challenges in humanitarian logistics, leading to an increasing consideration of the use of models of prioritization, in most multi-criteria models, to define the best alternatives for more assertive and strategic decision-making. Methods: This article aims to conduct a systematic review of the literature on the application of prioritization models in humanitarian logistics. To this end, an analysis was carried out of 40 articles, indexed in the Scopus or Web of Science databases. Results: The descriptive analysis revealed that the majority of applications are aimed at dealing with sudden-onset natural-induced disasters. However, there are still gaps in relevant areas, such as addressing inventory management problems at a tactical decision level. Conclusions: The development of prioritization models necessitates the integration of various methodologies, combining optimization models with multi-criteria decision analysis to yield superior outcomes. It is advised to incorporate four distinct criteria—efficiency, effectiveness, equity, and sustainability—to ensure a comprehensive assessment of the decision-making process.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on the Relationship between Port Governance and Terminal Operation System for Smart Port: Japan Case 智能港口的港口治理与码头运营系统之间的关系研究:日本案例
Pub Date : 2024-06-06 DOI: 10.3390/logistics8020059
Hideyo Inutsuka, Kinya Ichimura, Y. Sugimura, Muneo Yoshie, Takeshi Shinoda
Background: To improve port productivity, safety, and sustainability, the use of information and communication technology is being promoted as a smart port. The utilization of a terminal operation system (TOS) is important for advanced port operations, and it is necessary to organize the issues and characteristics of the TOS. Methods: The characteristics of TOSs introduced in Japan and those widely introduced in Europe and Southeast Asia will be investigated and discussed according to the port management system in Japan. Results: Japanese TOSs are characterized by a lack of automated functions, such as ship loading plans, and by the fact that they are designed to allow the crane driver to select the order of operations, which may be attributed to a system wherein stakeholders are segmented and on-site decisions are emphasized. The promotion of smart ports in Japanese-style ports requires a system for information linkage between stakeholders. Conclusions: TOS capabilities for smart ports should be implemented according to the characteristics of port management in each region, and the studies conducted in this paper are useful in examining port system implementation strategies.
背景:为了提高港口的生产率、安全性和可持续性,目前正在推广使用信息和通信技术作为智能港口。使用码头作业系统(TOS)对于先进的港口运营非常重要,因此有必要对码头作业系统的问题和特点进行整理。方法:根据日本的港口管理系统,对日本引进的 TOS 以及欧洲和东南亚广泛引进的 TOS 的特点进行调查和讨论。结果:日本 TOS 的特点是缺乏船舶装载计划等自动化功能,而且在设计上允许起重机司机选择操作顺序,这可能归因于利益相关者细分和强调现场决策的制度。要在日本式港口推广智能港口,就必须建立利益相关者之间的信息联系系统。结论应根据各地区港口管理的特点来实施智能港口的 TOS 功能,本文的研究有助于探讨港口系统的实施策略。
{"title":"Study on the Relationship between Port Governance and Terminal Operation System for Smart Port: Japan Case","authors":"Hideyo Inutsuka, Kinya Ichimura, Y. Sugimura, Muneo Yoshie, Takeshi Shinoda","doi":"10.3390/logistics8020059","DOIUrl":"https://doi.org/10.3390/logistics8020059","url":null,"abstract":"Background: To improve port productivity, safety, and sustainability, the use of information and communication technology is being promoted as a smart port. The utilization of a terminal operation system (TOS) is important for advanced port operations, and it is necessary to organize the issues and characteristics of the TOS. Methods: The characteristics of TOSs introduced in Japan and those widely introduced in Europe and Southeast Asia will be investigated and discussed according to the port management system in Japan. Results: Japanese TOSs are characterized by a lack of automated functions, such as ship loading plans, and by the fact that they are designed to allow the crane driver to select the order of operations, which may be attributed to a system wherein stakeholders are segmented and on-site decisions are emphasized. The promotion of smart ports in Japanese-style ports requires a system for information linkage between stakeholders. Conclusions: TOS capabilities for smart ports should be implemented according to the characteristics of port management in each region, and the studies conducted in this paper are useful in examining port system implementation strategies.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"20 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141379188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of End-to-End Tool for the Analysis of the Digital Governance of Ports 使用端对端工具分析港口数字化治理情况
Pub Date : 2024-06-06 DOI: 10.3390/logistics8020058
Nicoletta González-Cancelas, Alberto Camarero Orive, Alberto Rivas Vilarchao, Javier Vaca-Cabrero
Background: Digital governance currently presents challenges in the context of ports, where efficiency and transparency are key elements for the success of operations. In ports, the effective adoption of digital governance can have a significant impact on optimizing operational processes and improving coordination between port authorities, logistics operators and customs. Method: In this context, the article proposes the use of an End-to-End Tool to analyze and evaluate digital governance in ports. This tool makes it possible to collect data from various sources, carry out a thorough analysis of the processes involved, and evaluate the satisfaction of end users. In addition, it provides an intuitive and easy-to-use interface to visualize results and make evidence-based decisions. The outcomes revealed areas of improvement in operational processes, identified bottlenecks, and presented proposals to optimize port efficiency. Results: The port currently exhibiting the best digital governance is Valencia, followed by Piraeus, Barcelona, and Algeciras, with very comparable management, and finally, Genoa. Conclusions: Efficient public–private collaboration in digital governance boosts port competitiveness. Regulatory frameworks for data security are crucial, and digital governance emerges as vital for global success.
背景:在港口,效率和透明度是运营成功的关键因素,而数字治理目前给港口带来了挑战。在港口,有效采用数字治理可对优化操作流程和改善港务局、物流运营商和海关之间的协调产生重大影响。方法:在此背景下,文章建议使用 "端到端工具 "来分析和评估港口的数字化管理。该工具可以收集各种来源的数据,对相关流程进行全面分析,并评估最终用户的满意度。此外,它还提供了一个直观、易用的界面,可将结果可视化,并做出以证据为基础的决策。结果揭示了操作流程中需要改进的地方,找出了瓶颈,并提出了优化港口效率的建议。结果:瓦伦西亚港是目前数字化管理最好的港口,其次是比雷埃夫斯港、巴塞罗那港和阿尔赫西拉斯港,它们的管理水平非常接近,最后是热那亚港。结论数字管理方面高效的公私合作可提高港口竞争力。数据安全的监管框架至关重要,而数字化管理则是全球成功的关键。
{"title":"Use of End-to-End Tool for the Analysis of the Digital Governance of Ports","authors":"Nicoletta González-Cancelas, Alberto Camarero Orive, Alberto Rivas Vilarchao, Javier Vaca-Cabrero","doi":"10.3390/logistics8020058","DOIUrl":"https://doi.org/10.3390/logistics8020058","url":null,"abstract":"Background: Digital governance currently presents challenges in the context of ports, where efficiency and transparency are key elements for the success of operations. In ports, the effective adoption of digital governance can have a significant impact on optimizing operational processes and improving coordination between port authorities, logistics operators and customs. Method: In this context, the article proposes the use of an End-to-End Tool to analyze and evaluate digital governance in ports. This tool makes it possible to collect data from various sources, carry out a thorough analysis of the processes involved, and evaluate the satisfaction of end users. In addition, it provides an intuitive and easy-to-use interface to visualize results and make evidence-based decisions. The outcomes revealed areas of improvement in operational processes, identified bottlenecks, and presented proposals to optimize port efficiency. Results: The port currently exhibiting the best digital governance is Valencia, followed by Piraeus, Barcelona, and Algeciras, with very comparable management, and finally, Genoa. Conclusions: Efficient public–private collaboration in digital governance boosts port competitiveness. Regulatory frameworks for data security are crucial, and digital governance emerges as vital for global success.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"99 s1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141378178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Development of Risk Assessments and Supplier Resilience Models for Military Industrial Supply Chains Considering Rare Disruptions 为考虑罕见干扰的军工供应链开发风险评估和供应商复原力模型
Pub Date : 2024-06-04 DOI: 10.3390/logistics8020057
Anna Urmston, Dongping Song, Andrew Lyons
Background: Supply chain risk and resilience in non-profit-seeking industries involving governmental agencies and quasi-governmental agencies have been under-studied. This paper focuses on the military industrial supply chain to demonstrate the development of risk assessment and supplier resilience models considering one-off disruption events such as the COVID-19 disruption. Methods: We establish relevant resilience-based categories through a literature review, supported by the experiences of supply chain experts within the military industry. We quantify the severity of the identified resilience categories, their detectability, and their occurrence probabilities. The failure modes and effects analysis technique is used to evaluate the risk priorities for the resilience categories to develop a risk assessment model. The risk assessment model is then extended to a supplier resilience model by incorporating specific rare disruption factors, which can act as a scenario planning tool. Results: It is found that (i) the top four resilience sub-categories are financial, topical data, business continuity planning, and supply chain mapping, while cost reduction strategies and green material usage are the least important; (ii) the main areas requiring focus are topical data, supply chain depth awareness, business continuity management, and internal risk management; and (iii) suppliers have least resilience in the areas of ‘topical information’ and ‘business continuity strategy’. Conclusions: The tool developed can help military industrial supply chains identify the main areas to enhance resilience from multiple perspectives of severity, occurrence probability, detectability, and suppliers.
背景:对涉及政府机构和准政府机构的非营利性行业的供应链风险和复原力研究不足。本文以军工供应链为重点,展示了考虑到一次性中断事件(如 COVID-19 中断)的风险评估和供应商恢复力模型的发展情况。方法:我们通过文献综述,结合军工行业供应链专家的经验,建立了基于复原力的相关类别。我们对已确定的复原力类别的严重性、可探测性及其发生概率进行量化。采用失效模式与效应分析技术来评估复原力类别的风险优先级,从而建立风险评估模型。然后,通过纳入特定的罕见干扰因素,将风险评估模型扩展为供应商复原力模型,该模型可作为情景规划工具。结果:结果发现:(i) 前四个复原力子类别是财务、专题数据、业务连续性规划和供应链规划,而降低成本战略和绿色材料使用的重要性最低;(ii) 需要重点关注的主要领域是专题数据、供应链深度意识、业务连续性管理和内部风险管理;(iii) 供应商在 "专题信息 "和 "业务连续性战略 "领域的复原力最低。结论:所开发的工具可帮助军工供应链从严重性、发生概率、可探测性和供应商等多个角度确定需要加强复原力的主要领域。
{"title":"The Development of Risk Assessments and Supplier Resilience Models for Military Industrial Supply Chains Considering Rare Disruptions","authors":"Anna Urmston, Dongping Song, Andrew Lyons","doi":"10.3390/logistics8020057","DOIUrl":"https://doi.org/10.3390/logistics8020057","url":null,"abstract":"Background: Supply chain risk and resilience in non-profit-seeking industries involving governmental agencies and quasi-governmental agencies have been under-studied. This paper focuses on the military industrial supply chain to demonstrate the development of risk assessment and supplier resilience models considering one-off disruption events such as the COVID-19 disruption. Methods: We establish relevant resilience-based categories through a literature review, supported by the experiences of supply chain experts within the military industry. We quantify the severity of the identified resilience categories, their detectability, and their occurrence probabilities. The failure modes and effects analysis technique is used to evaluate the risk priorities for the resilience categories to develop a risk assessment model. The risk assessment model is then extended to a supplier resilience model by incorporating specific rare disruption factors, which can act as a scenario planning tool. Results: It is found that (i) the top four resilience sub-categories are financial, topical data, business continuity planning, and supply chain mapping, while cost reduction strategies and green material usage are the least important; (ii) the main areas requiring focus are topical data, supply chain depth awareness, business continuity management, and internal risk management; and (iii) suppliers have least resilience in the areas of ‘topical information’ and ‘business continuity strategy’. Conclusions: The tool developed can help military industrial supply chains identify the main areas to enhance resilience from multiple perspectives of severity, occurrence probability, detectability, and suppliers.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"105 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fog Computing and Industry 4.0 for Newsvendor Inventory Model Using Attention Mechanism and Gated Recurrent Unit 使用注意机制和门控循环单元的新闻供应商库存模型的雾计算和工业 4.0
Pub Date : 2024-06-03 DOI: 10.3390/logistics8020056
Joaquin Gonzalez, Liliana Avelar Sosa, Gabriel Bravo, O. Cruz-Mejía, J. Mejía-Muñoz
Background: Efficient inventory management is critical for sustainability in supply chains. However, maintaining adequate inventory levels becomes challenging in the face of unpredictable demand patterns. Furthermore, the need to disseminate demand-related information throughout a company often relies on cloud services. However, this method sometimes encounters issues such as limited bandwidth and increased latency. Methods: To address these challenges, our study introduces a system that incorporates a machine learning algorithm to address inventory-related uncertainties arising from demand fluctuations. Our approach involves the use of an attention mechanism for accurate demand prediction. We combine it with the Newsvendor model to determine optimal inventory levels. The system is integrated with fog computing to facilitate the rapid dissemination of information throughout the company. Results: In experiments, we compare the proposed system with the conventional demand estimation approach based on historical data and observe that the proposed system consistently outperformed the conventional approach. Conclusions: This research introduces an inventory management system based on a novel deep learning architecture that integrates the attention mechanism with cloud computing to address the Newsvendor problem. Experiments demonstrate the better accuracy of this system in comparison to existing methods. More studies should be conducted to explore its applicability to other demand modeling scenarios.
背景:高效的库存管理对供应链的可持续性至关重要。然而,面对不可预测的需求模式,保持足够的库存水平变得非常具有挑战性。此外,在整个公司传播与需求相关的信息往往需要依赖云服务。然而,这种方法有时会遇到带宽有限和延迟增加等问题。方法:为了应对这些挑战,我们的研究引入了一种结合机器学习算法的系统,以解决需求波动带来的库存相关不确定性问题。我们的方法包括使用关注机制来准确预测需求。我们将其与 Newsvendor 模型相结合,以确定最佳库存水平。该系统与雾计算相结合,便于在全公司范围内快速传播信息。实验结果在实验中,我们将提议的系统与基于历史数据的传统需求预测方法进行了比较,发现提议的系统始终优于传统方法。结论本研究介绍了一种基于新型深度学习架构的库存管理系统,该架构将注意力机制与云计算相结合,以解决新闻供应商问题。实验证明,与现有方法相比,该系统具有更高的准确性。应开展更多研究,探索其在其他需求建模场景中的适用性。
{"title":"Fog Computing and Industry 4.0 for Newsvendor Inventory Model Using Attention Mechanism and Gated Recurrent Unit","authors":"Joaquin Gonzalez, Liliana Avelar Sosa, Gabriel Bravo, O. Cruz-Mejía, J. Mejía-Muñoz","doi":"10.3390/logistics8020056","DOIUrl":"https://doi.org/10.3390/logistics8020056","url":null,"abstract":"Background: Efficient inventory management is critical for sustainability in supply chains. However, maintaining adequate inventory levels becomes challenging in the face of unpredictable demand patterns. Furthermore, the need to disseminate demand-related information throughout a company often relies on cloud services. However, this method sometimes encounters issues such as limited bandwidth and increased latency. Methods: To address these challenges, our study introduces a system that incorporates a machine learning algorithm to address inventory-related uncertainties arising from demand fluctuations. Our approach involves the use of an attention mechanism for accurate demand prediction. We combine it with the Newsvendor model to determine optimal inventory levels. The system is integrated with fog computing to facilitate the rapid dissemination of information throughout the company. Results: In experiments, we compare the proposed system with the conventional demand estimation approach based on historical data and observe that the proposed system consistently outperformed the conventional approach. Conclusions: This research introduces an inventory management system based on a novel deep learning architecture that integrates the attention mechanism with cloud computing to address the Newsvendor problem. Experiments demonstrate the better accuracy of this system in comparison to existing methods. More studies should be conducted to explore its applicability to other demand modeling scenarios.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"119 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141271894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Make-or-Buy Policy Decision in Maintenance Planning for Mobility: A Multi-Criteria Approach 流动性维护规划中的 "买或卖 "决策:多标准方法
Pub Date : 2024-05-20 DOI: 10.3390/logistics8020055
Tommaso Ortalli, Andrea Di Martino, Michela Longo, Dario Zaninelli
Background: The ongoing technical innovation is fully involving transportation sector, converting the usual mass-transit system toward a sustainable mobility. Make-or-buy decision are usually adopted to assess different solutions in terms of costs-benefits to put in place strategic choices regarding in-house production or from an external supplier. This can also be reflected on maintenance operations, thus replicating a similar approach to transport companies involved. Method: A decision-making model by means of a multi-criteria analysis can lead make-or-buy choices adapted to maintenance. A brief introduction into the actual mobility context is provided, evaluating global and national trends with respect to the mobility solutions offered. Then, a focus is set on maintenance approaches in mobility sector and the need of a make-or-buy decision process is considered. The decision-making path is developed through a multi-criteria framework based on eigenvector weighing assessment, where different Key Performance Indicators (KPIs) are identified and exploited to assess the maintenance approach at stake. Results: A comparison among different scenarios considered helped in identify the solution offered to the transport operator. In particular, for the case study of interest a −35% decrease in maintenance specific cost and −44% in cost variability were found. Reliability of the fleet was kept at an acceptable level compared to the reference in-house maintenance (≥90%) while an increase in the Mean Time Between Failure was observed. Conclusions: For the purposes of a small company, the method can address the choice of outsourcing maintenance as the best. Finally, a general trend is then extrapolated from the analysis performed, in order to constitute a decision guideline. The research can benefit from further analysis to test and validate that the selected approach is effective from the perspective of transport operator.
背景:当前的技术革新正全面涉及交通领域,将通常的大众交通系统转变为可持续的交通方式。通常采用 "要么做,要么买 "的决策,从成本效益的角度评估不同的解决方案,从而对内部生产或外部供应商做出战略选择。这也可以反映在维护操作上,从而将类似的方法复制到相关的运输公司。方法:通过多标准分析的决策模型,可以为维护工作做出 "要么做,要么买 "的选择。首先简要介绍了实际的交通环境,评估了所提供的交通解决方案的全球和国家趋势。然后,重点介绍了移动领域的维护方法,并考虑了 "要么做,要么买 "决策过程的必要性。决策路径是通过基于特征向量权衡评估的多标准框架制定的,其中确定了不同的关键绩效指标 (KPI),并利用这些指标来评估所涉及的维护方法。结果:对不同方案的比较有助于确定为运输运营商提供的解决方案。特别是在相关案例研究中,发现维护的具体成本降低了 35%,成本变化率降低了 44%。与参考的内部维护相比,机队的可靠性保持在可接受的水平(≥90%),同时观察到平均故障间隔时间有所增加。结论:对于小公司而言,该方法可以解决选择外包维护的最佳问题。最后,从所做的分析中推断出一个总体趋势,以作为决策指南。从运输运营商的角度来看,进一步分析以测试和验证所选择的方法是否有效,会对研究有所裨益。
{"title":"Make-or-Buy Policy Decision in Maintenance Planning for Mobility: A Multi-Criteria Approach","authors":"Tommaso Ortalli, Andrea Di Martino, Michela Longo, Dario Zaninelli","doi":"10.3390/logistics8020055","DOIUrl":"https://doi.org/10.3390/logistics8020055","url":null,"abstract":"Background: The ongoing technical innovation is fully involving transportation sector, converting the usual mass-transit system toward a sustainable mobility. Make-or-buy decision are usually adopted to assess different solutions in terms of costs-benefits to put in place strategic choices regarding in-house production or from an external supplier. This can also be reflected on maintenance operations, thus replicating a similar approach to transport companies involved. Method: A decision-making model by means of a multi-criteria analysis can lead make-or-buy choices adapted to maintenance. A brief introduction into the actual mobility context is provided, evaluating global and national trends with respect to the mobility solutions offered. Then, a focus is set on maintenance approaches in mobility sector and the need of a make-or-buy decision process is considered. The decision-making path is developed through a multi-criteria framework based on eigenvector weighing assessment, where different Key Performance Indicators (KPIs) are identified and exploited to assess the maintenance approach at stake. Results: A comparison among different scenarios considered helped in identify the solution offered to the transport operator. In particular, for the case study of interest a −35% decrease in maintenance specific cost and −44% in cost variability were found. Reliability of the fleet was kept at an acceptable level compared to the reference in-house maintenance (≥90%) while an increase in the Mean Time Between Failure was observed. Conclusions: For the purposes of a small company, the method can address the choice of outsourcing maintenance as the best. Finally, a general trend is then extrapolated from the analysis performed, in order to constitute a decision guideline. The research can benefit from further analysis to test and validate that the selected approach is effective from the perspective of transport operator.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"52 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141122030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Artificial Intelligence Capabilities for Demand Planning Process 需求规划流程的人工智能功能
Pub Date : 2024-05-10 DOI: 10.3390/logistics8020053
C. D. de Mattos, Fernanda Caveiro Correia, K. Kissimoto
Background: Technological advancements, particularly in Artificial Intelligence (AI), are revolutionizing operations management, especially in the domain of supply chain management. This paper delves into the application of AI in demand planning processes within the supply chain context. Drawing upon a comprehensive review of the existing literature, the main objective of this study is to analyze how AI is being applied and adopted in the demand planning process, identifying the resources needed to build the capacity of AI in the demand process, as well as the mechanisms and practices contributing to AI capability’s advancement and formation. Methodology: The approach was qualitative, and case studies of three different companies were conducted. Results: This study identified crucial resources necessary for fostering AI capabilities in demand planning. Our study extends the literature on AI capability in several ways. First, we identify the resources that are important in the formation of the capacity to implement AI in the context of demand planning. Conclusions: This study’s practical contributions underscore the multifaceted nature of AI implementation for demand planning, emphasizing the importance of resource allocation, human capital development, collaborative relationships, organizational alignment, and relational capital and AI.
背景:技术进步,特别是人工智能(AI)技术的进步,正在彻底改变运营管理,尤其是供应链管理领域。本文深入探讨了人工智能在供应链背景下的需求规划流程中的应用。在对现有文献进行全面回顾的基础上,本研究的主要目的是分析人工智能在需求计划流程中的应用和采纳情况,确定在需求流程中建立人工智能能力所需的资源,以及促进人工智能能力提升和形成的机制和实践。研究方法:采用定性方法,对三家不同的公司进行了案例研究。研究结果本研究确定了在需求规划中培养人工智能能力所需的关键资源。我们的研究从几个方面扩展了有关人工智能能力的文献。首先,我们确定了在需求规划中形成实施人工智能能力的重要资源。结论:本研究的实际贡献强调了在需求规划中实施人工智能的多面性,强调了资源分配、人力资本开发、协作关系、组织调整以及关系资本与人工智能的重要性。
{"title":"Artificial Intelligence Capabilities for Demand Planning Process","authors":"C. D. de Mattos, Fernanda Caveiro Correia, K. Kissimoto","doi":"10.3390/logistics8020053","DOIUrl":"https://doi.org/10.3390/logistics8020053","url":null,"abstract":"Background: Technological advancements, particularly in Artificial Intelligence (AI), are revolutionizing operations management, especially in the domain of supply chain management. This paper delves into the application of AI in demand planning processes within the supply chain context. Drawing upon a comprehensive review of the existing literature, the main objective of this study is to analyze how AI is being applied and adopted in the demand planning process, identifying the resources needed to build the capacity of AI in the demand process, as well as the mechanisms and practices contributing to AI capability’s advancement and formation. Methodology: The approach was qualitative, and case studies of three different companies were conducted. Results: This study identified crucial resources necessary for fostering AI capabilities in demand planning. Our study extends the literature on AI capability in several ways. First, we identify the resources that are important in the formation of the capacity to implement AI in the context of demand planning. Conclusions: This study’s practical contributions underscore the multifaceted nature of AI implementation for demand planning, emphasizing the importance of resource allocation, human capital development, collaborative relationships, organizational alignment, and relational capital and AI.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":" 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140990877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing Last-Mile Delivery: A Multi-Criteria Approach with Automated Smart Lockers, Capillary Distribution and Crowdshipping 优化最后一英里配送:自动智能储物柜、毛细配送和众包配送的多标准方法
Pub Date : 2024-05-08 DOI: 10.3390/logistics8020052
Bartosz Sawik
Background: This publication presents a review, multiple criteria optimization models, and a practical example pertaining to the integration of automated smart locker systems, capillary distribution networks, crowdshipping, last-mile delivery and supply chain management. This publication addresses challenges in logistics and transportation, aiming to enhance efficiency, reduce costs and improve customer satisfaction. This study integrates automated smart locker systems, capillary distribution networks, crowdshipping, last-mile delivery and supply chain management. Methods: A review of the existing literature synthesizes key concepts, such as facility location problems, vehicle routing problems and the mathematical programming approach, to optimize supply chain operations. Conceptual optimization models are formulated to solve the complex decision-making process involved in last-mile delivery, considering multiple objectives, including cost minimization, delivery time optimization, service level minimization, capacity optimization, vehicle minimization and resource utilization. Results: The multiple criteria approaches combine the vehicle routing problem and facility location problem, demonstrating the practical applicability of the proposed methodology in a real-world case study within a logistics company. Conclusions: The execution of multi-criteria models optimizes automated smart locker deployment, capillary distribution design, crowdshipping and last-mile delivery strategies, showcasing its effectiveness in the logistics sector.
背景:本出版物介绍了与自动智能储物柜系统、毛细配送网络、众包运输、最后一英里配送和供应链管理的整合有关的综述、多标准优化模型和实际案例。本出版物旨在应对物流和运输领域的挑战,以提高效率、降低成本和改善客户满意度。本研究整合了自动化智能储物柜系统、毛细配送网络、众包运输、最后一英里配送和供应链管理。研究方法通过对现有文献的综述,总结了优化供应链运营的关键概念,如设施选址问题、车辆路线问题和数学编程方法。考虑到多种目标,包括成本最小化、交货时间最优化、服务水平最小化、容量最优化、车辆最小化和资源利用率,制定了概念优化模型,以解决最后一英里配送所涉及的复杂决策过程。结果:多标准方法结合了车辆路线问题和设施选址问题,在一家物流公司的实际案例研究中证明了所提方法的实用性。结论:多标准模型的执行优化了自动智能储物柜部署、毛细配送设计、众包运输和最后一英里配送策略,展示了其在物流领域的有效性。
{"title":"Optimizing Last-Mile Delivery: A Multi-Criteria Approach with Automated Smart Lockers, Capillary Distribution and Crowdshipping","authors":"Bartosz Sawik","doi":"10.3390/logistics8020052","DOIUrl":"https://doi.org/10.3390/logistics8020052","url":null,"abstract":"Background: This publication presents a review, multiple criteria optimization models, and a practical example pertaining to the integration of automated smart locker systems, capillary distribution networks, crowdshipping, last-mile delivery and supply chain management. This publication addresses challenges in logistics and transportation, aiming to enhance efficiency, reduce costs and improve customer satisfaction. This study integrates automated smart locker systems, capillary distribution networks, crowdshipping, last-mile delivery and supply chain management. Methods: A review of the existing literature synthesizes key concepts, such as facility location problems, vehicle routing problems and the mathematical programming approach, to optimize supply chain operations. Conceptual optimization models are formulated to solve the complex decision-making process involved in last-mile delivery, considering multiple objectives, including cost minimization, delivery time optimization, service level minimization, capacity optimization, vehicle minimization and resource utilization. Results: The multiple criteria approaches combine the vehicle routing problem and facility location problem, demonstrating the practical applicability of the proposed methodology in a real-world case study within a logistics company. Conclusions: The execution of multi-criteria models optimizes automated smart locker deployment, capillary distribution design, crowdshipping and last-mile delivery strategies, showcasing its effectiveness in the logistics sector.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":"20 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141001614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Principal-Agent Theoretical Ramifications on Digital Transformation of Ports in Emerging Economies 新兴经济体港口数字化转型的委托代理理论影响
Pub Date : 2024-05-08 DOI: 10.3390/logistics8020051
Benjamin Mosses Sakita, Berit Irene Helgheim, Svein Bråthen
Background: Scholarly literature indicates a slow pace at which maritime ports fully embrace digital transformation (DT). The reasons to this are largely anecdotal and lack solid empirical grounding. This inhibits an overall understanding of DT’s tenets and the development of evidence-based policies and targeted actions. Methods: This study deployed a qualitative case study strategy to unpack the challenges of undertaking DT through the lens of principal-agent theory (PAT). Results: Analysis of data collected through 13 semi-structured interviews from a port’s value chain stakeholders revealed five thematic challenges that contradict successful implementation of DT. These included interagency constraints and system ownership tussles; system sabotage and prevalent corruption; prevalent human agency in port operations; cultural constraints; and political influence on port governance. Conclusions: To address these challenges, the study proposes a four-stage empirically grounded DT strategy framework that guides both practitioners and policymakers through DT endeavors. The framework includes: (1) the port’s value chain mapping, (2) stakeholder engagement, (3) resource mobilization, and (4) effective monitoring. For scholars, we provide an avenue for testing statistical significance of association and causality among the identified challenges.
背景:学术文献表明,海港全面拥抱数字化转型(DT)的步伐缓慢。究其原因,大多是传闻,缺乏坚实的经验基础。这阻碍了对 DT 原则的全面理解,也不利于制定循证政策和有针对性的行动。研究方法:本研究采用定性案例研究策略,从委托代理理论(PAT)的视角解读开展 DT 所面临的挑战。结果:通过对某港口价值链利益相关者进行 13 次半结构式访谈收集的数据进行分析,发现了与成功实施 DT 相矛盾的五大挑战。这些挑战包括机构间限制和系统所有权争夺;系统破坏和腐败盛行;港口运营中普遍存在的人为因素;文化限制;以及政治对港口治理的影响。结论:为应对这些挑战,本研究提出了一个以经验为基础的四阶段 DT 战略框架,以指导实践者和决策者开展 DT 工作。该框架包括(1) 港口价值链规划,(2) 利益相关者参与,(3) 资源调动,以及 (4) 有效监控。对于学者而言,我们提供了一种途径,用于检验已识别挑战之间的关联性和因果关系的统计意义。
{"title":"The Principal-Agent Theoretical Ramifications on Digital Transformation of Ports in Emerging Economies","authors":"Benjamin Mosses Sakita, Berit Irene Helgheim, Svein Bråthen","doi":"10.3390/logistics8020051","DOIUrl":"https://doi.org/10.3390/logistics8020051","url":null,"abstract":"Background: Scholarly literature indicates a slow pace at which maritime ports fully embrace digital transformation (DT). The reasons to this are largely anecdotal and lack solid empirical grounding. This inhibits an overall understanding of DT’s tenets and the development of evidence-based policies and targeted actions. Methods: This study deployed a qualitative case study strategy to unpack the challenges of undertaking DT through the lens of principal-agent theory (PAT). Results: Analysis of data collected through 13 semi-structured interviews from a port’s value chain stakeholders revealed five thematic challenges that contradict successful implementation of DT. These included interagency constraints and system ownership tussles; system sabotage and prevalent corruption; prevalent human agency in port operations; cultural constraints; and political influence on port governance. Conclusions: To address these challenges, the study proposes a four-stage empirically grounded DT strategy framework that guides both practitioners and policymakers through DT endeavors. The framework includes: (1) the port’s value chain mapping, (2) stakeholder engagement, (3) resource mobilization, and (4) effective monitoring. For scholars, we provide an avenue for testing statistical significance of association and causality among the identified challenges.","PeriodicalId":507203,"journal":{"name":"Logistics","volume":" 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141000977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Logistics
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1