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Practice Summary: Seminar Assignments in a University—MATLAB-Based Decision Support 实践总结:基于matlab的大学决策支持研讨会作业
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-03-21 DOI: 10.1287/inte.2023.1157
Andreas Dellnitz, Damian Pozo, Jochen Bauer, Andreas Kleine
Universities follow a long tradition of assigning students to courses based on student preferences while taking into account constraints such as the rooms to be used. In this context, theoretical approaches aid us in developing algorithms that can be helpful in practice. Our contribution to this subject is a practice summary in which we discuss the most important findings of a project to develop a MATLAB-based stand-alone software system to solve the seminar assignment problem at the FernUniversität in Hagen, Germany. The use of our software at three departments has already enabled annual savings of nearly 20,000 euros in personnel costs, which corresponds to a reduction of around 500 person-hours per year. Apart from important technical aspects of our work, the reported savings potential provides valuable information for making decisions on future similar software projects. History: This paper was refereed.
大学有一个悠久的传统,即根据学生的喜好给学生分配课程,同时考虑到使用的房间等限制条件。在这种情况下,理论方法可以帮助我们开发在实践中有用的算法。我们对这个主题的贡献是一个实践总结,其中我们讨论了一个项目的最重要的发现,该项目开发了一个基于matlab的独立软件系统,以解决德国哈根FernUniversität的研讨会分配问题。在三个部门使用我们的软件后,每年已经节省了近2万欧元的人力成本,相当于每年减少了约500个工时。除了我们工作的重要技术方面之外,报告的节约潜力为将来类似软件项目的决策提供了有价值的信息。历史:本文被审稿。
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引用次数: 0
Rationalized Timetabling Using a Simulation Tool: A Paradigm Shift in Indian Railways 使用模拟工具的合理化时间表:印度铁路的范式转变
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-03-21 DOI: 10.1287/inte.2023.1158
K. Anoop, A. M. Reddy, Mandeep Singh Bhatia, A. K. Jain, R. Gopalakrishnan, Merajus Salekin, Samay Pritam Singh, R. V. Satwik, Sudarshan Pulapadi, Chandrashekhar Bobade, I. S. Kumar, Shivasubramanian Gopalakrishnan, K. Appaiah, N. Rangaraj, M. Belur
During the year 2020, Indian Railways undertook an extensive timetabling exercise for its entire network. The timetable for its six principal routes known as the golden quadrilateral + diagonals (GQD) was generated using a rail traffic simulation tool. The simulation tool and the methodology had to be customized to handle the complex technical requirements of the GQD network, which spans more than 9,000 km. Challenges related to using and integrating data into the simulator also had to be addressed. This was the first time that a simulation software tool of this kind was used for timetabling in Indian Railways, and hence, there were uncertainties regarding the timely delivery, which gave rise to additional challenges to the overall effort. This paper focuses on these challenges and the managerial and human aspects of this massive timetabling exercise. It also explains how this project leverages the benefits of combining top-down and bottom-up approaches in timetabling and how it sets a new paradigm for network-wide timetabling in Indian Railways. History: This paper was refereed. Funding: This work was supported financially through the Indian Railways–sponsored project titled “Implementing Zero Based Timetabling for Major IR Routes by IIT Bombay through Simulation Model of Mixed Rail Traffic” [Grant RD/0120-WRAIL00-002].
在2020年期间,印度铁路公司对其整个网络进行了广泛的时间表编制工作。其被称为黄金四边形+对角线(GQD)的六条主要路线的时间表是使用铁路交通模拟工具生成的。模拟工具和方法必须定制,以处理跨越9000多公里的GQD网络的复杂技术要求。与使用数据和将数据集成到模拟器中有关的挑战也必须得到解决。这是印度铁路第一次使用这种模拟软件工具来制定时间表,因此,在及时交付方面存在不确定性,这给整体工作带来了额外的挑战。本文的重点是这些挑战和管理和人的方面,这一大规模的时间表练习。它还解释了该项目如何利用自上而下和自下而上的时间表方法相结合的好处,以及它如何为印度铁路的全网时间表制定树立了新的范例。历史:本文被审稿。资助:这项工作由印度铁路公司资助的项目“印度理工学院孟买分校通过混合轨道交通模拟模型实施主要IR路线的零基础时间表”提供资金支持[Grant RD/0120-WRAIL00-002]。
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引用次数: 0
Information Value Analysis for Real-Time Silo Fill-Level Monitoring 筒仓液位实时监测的信息价值分析
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-02-27 DOI: 10.1287/inte.2023.1156
Toni Greif, N. Stein, C. Flath
Supply chains in the construction industry are less efficient than in other industries (e.g., retail or automotive). The reason for the less optimized supply chains is often the lack of accurate, up-to-date information. For a leading supplier of building materials and construction systems, we perform a value of information analysis to guide future investments in costly sensors for silo fill-level monitoring. Silo inventory is vendor-managed as construction sites withdraw material from silos as they need it. Ensuring continuous availability of material requires proactive replenishment across products and customers. We establish the optimal purchase level of (partial) information for different hardware costs and service levels. Based on the current ensured service level regime, the minimum total costs are achieved with approximately 50% sensor-equipped silos for medium and high annual sensor costs. The findings on the appropriate use of information technology to improve decision making with partial information are generally relevant for suppliers looking to stand out with service guarantees and short delivery times. History: This paper was refereed.
建筑行业的供应链效率低于其他行业(如零售业或汽车业)。供应链优化程度较低的原因往往是缺乏准确的、最新的信息。对于建筑材料和建筑系统的领先供应商,我们执行价值信息分析,以指导未来投资昂贵的传感器,用于筒仓填充水平监测。筒仓库存是由供应商管理的,建筑工地根据需要从筒仓中提取材料。确保材料的持续可用性需要对产品和客户进行主动补充。我们针对不同的硬件成本和服务水平建立了(部分)信息的最佳购买水平。根据目前确保的服务水平制度,大约50%的传感器配备筒仓可以实现最低的总成本,从而实现中等和较高的年度传感器成本。关于适当使用信息技术以改进部分信息的决策的调查结果通常与希望以服务保证和短交货时间脱颖而出的供应商有关。历史:本文被审稿。
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引用次数: 1
McLeod Health Optimizes Staffing for Patient Room Cleaning 麦克劳德健康优化人员配置病房清洁
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-19 DOI: 10.1287/inte.2022.1155
S. Ahire
Patient room cleaning is an often-neglected hospital process. But it has serious implications for clinical outcomes and patient satisfaction. Delays in turning rooms around between patients can impair hospital capacity and capability to speed up patient treatment. Inefficient assignment of rooms to the cleaning staff also can lead to higher incidence of infection transmission. We systematically developed and piloted an efficient room assignment logic for this critical process through an integer-programming staff optimization model at McLeod Health, a leading hospital system in South Carolina. We identified an opportunity for a 20% reduction in staffing level to handle the prevalent demand and annual staffing cost savings of about $575,000 or to handle a 30% greater demand in dirty rooms using the current staffing levels. McLeod Health integrated our recommendations into their staffing strategy immediately. History: This paper was refereed. Funding: This paper is based on a consulting project funded through the University of South Carolina Operations and Supply Chain Center at McLeod Health under the sponsorship of Donna Isgett.
病房清洁是一个经常被忽视的医院流程。但它对临床结果和患者满意度有着严重的影响。病人间转诊的延误会损害医院的容量和加快病人治疗的能力。清洁人员的房间分配效率低下也会导致更高的感染传播发生率。在南卡罗莱纳的一家领先的医院系统McLeod Health,我们通过整数规划员工优化模型,系统地为这一关键过程开发并试行了一种有效的房间分配逻辑。我们发现有机会减少20%的人员编制,以处理普遍的需求,每年节省约57.5万美元的人员编制成本,或在现有人员编制的情况下处理脏房间增加30%的需求。McLeod Health立即将我们的建议整合到他们的人员配置策略中。历史:本文被审稿。资助:本文基于一个咨询项目,该项目由Donna Isgett赞助,由南卡罗莱纳大学运营和供应链中心在McLeod Health资助。
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引用次数: 0
Structured Decision Making to Prioritize Regional Bird Monitoring Needs 优先考虑区域鸟类监测需求的结构化决策
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-18 DOI: 10.1287/inte.2022.1154
Auriel M. V. Fournier, R. Wilson, J. Gleason, E. Adams, Janell M. Brush, R. Cooper, S. Demaso, Melanie J. L. Driscoll, P. Frederick, P. Jodice, M. Ottinger, David B. Reeves, Michael A. Seymour, S. Sharuga, J. Tirpak, William G. Vermillion, T. Zenzal, J. Lyons, M. Woodrey
Conservation planning for large ecosystems has multiple benefits but is often challenging to implement because of the multiple jurisdictions, species, and habitats involved. In addition, decision making at large spatial scales can be hampered because many approaches do not explicitly incorporate potentially competing values and concerns of stakeholders. After the Deepwater Horizon oil spill, establishing baselines was challenging because of (1) variation in study designs, (2) inconsistent use of explicit objectives and hypotheses, (3) inconsistent use of standardized monitoring protocols, and (4) variation in spatial and temporal scope associated with avian monitoring projects before the spill. Herein, we show how the Gulf of Mexico Avian Monitoring Network members used structured decision making to identify bird monitoring priorities. We used multiple tools and techniques to clearly define the problem and stakeholder objectives and to identify bird monitoring priorities at the scale of the entire northern Gulf of Mexico region. Although our example is specific to the northern Gulf of Mexico, this approach provides an example of how stakeholder values can be incorporated into the coordination process of broad-scale monitoring programs to address management, restoration, and scientific questions in other ecosystems and for other taxa. History: This paper was refereed. Funding: Thanks to the National Fish and Wildlife Foundation [Grant 324423], which supported A. Fournier as a postdoctoral research associate at Mississippi State University. M. Woodrey was supported by the U.S. Department of Agriculture, National Institute of Food and Agriculture, Hatch Project funds, the Mississippi Agricultural and Forestry Experiment Station, National Oceanographic and Atmospheric Administration [Grant NA16NOS4200088 to the Mississippi Department of Marine Resources’ Grand Bay National Estuarine Research Reserve], and the Mississippi Department of Marine Resources [Grant 8200025414]. This publication is a contribution of the Mississippi Agricultural and Forestry Experiment Station. T. Zenzal was supported by the National Oceanic and Atmospheric Administration RESTORE Act Science Program [Grant NA17NOS4510092].
大型生态系统的保护规划有多种好处,但由于涉及多个司法管辖区、物种和栖息地,实施起来往往具有挑战性。此外,在大空间尺度上的决策可能会受到阻碍,因为许多方法没有明确纳入利益相关者潜在的竞争价值和关切。深水地平线漏油事件发生后,由于(1)研究设计的变化,(2)明确目标和假设的使用不一致,(3)标准化监测方案的使用不一致,以及(4)泄漏前与鸟类监测项目相关的时空范围的变化,建立基线具有挑战性。在此,我们展示了墨西哥湾鸟类监测网络成员如何使用结构化决策来确定鸟类监测的优先事项。我们使用多种工具和技术来明确问题和利益相关者的目标,并确定整个墨西哥湾北部地区的鸟类监测重点。虽然我们的例子是针对墨西哥湾北部的,但这种方法提供了一个例子,说明如何将利益相关者的价值观纳入大规模监测项目的协调过程,以解决其他生态系统和其他分类群的管理、恢复和科学问题。历史:本文被审稿。资助:感谢国家鱼类和野生动物基金会[Grant 324423],该基金会支持a . Fournier在密西西比州立大学做博士后研究助理。M. Woodrey得到了美国农业部、国家食品和农业研究所、哈奇项目基金、密西西比州农林试验站、国家海洋和大气管理局[拨款NA16NOS4200088给密西西比州海洋资源部的大湾国家河口研究保护区]和密西西比州海洋资源部[拨款8200025414]的支持。本出版物是密西西比农业和林业实验站的贡献。T. Zenzal得到了国家海洋和大气管理局恢复法案科学计划[Grant NA17NOS4510092]的支持。
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引用次数: 2
Algorithm for Robotic Picking in Amazon Fulfillment Centers Enables Humans and Robots to Work Together Effectively 亚马逊物流中心的机器人拣选算法使人类和机器人能够有效地协同工作
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-05 DOI: 10.1287/inte.2022.1143
R. Allgor, Tolga Çezik, Daniel Chen
This paper describes how Amazon redesigned the robotic picking algorithm used in Amazon Robotics (AR) fulfillment centers (FCs) to enable humans and robots to work together effectively. In AR FCs, robotic drives fetch storage pods filled with inventory for associates to pick. The picking algorithm needs to decide which specific units of inventory on which pods should be picked to fulfill customer order shipments. We want to do so in a way that is most efficient and distance traveled by drives per unit picked is the key performance metric. This new algorithm reduced the distance traveled by drives per unit picked by 62% without negative operational impact and has since been implemented in all AR FCs. This improvement reduced the number of drives required in AR FCs by 31%, which amounted to half a billion dollars in savings. The redesigned algorithm enabled seamless collaboration between associates and robots, and its effectiveness in scaling up convinced Amazon to make AR FCs the standard for new FCs, allowing Amazon to reduce the storage footprint by about 29% compared with non-AR FCs. History: This paper was refereed.
本文描述了亚马逊如何重新设计亚马逊机器人(AR)履行中心(fc)中使用的机器人拣选算法,以使人类和机器人能够有效地协同工作。在AR FCs中,机器人驱动器会取出装满库存的存储舱,供同事挑选。挑选算法需要决定应该挑选哪些特定的库存单元,以满足客户的订单发货。我们希望以一种最有效的方式做到这一点,并且每个单元驱动器的行驶距离是关键的性能指标。这种新算法在不影响操作的情况下,将每个单元驱动器的行驶距离缩短了62%,并已在所有AR fc中实施。这一改进将AR fc所需的驱动器数量减少了31%,相当于节省了5亿美元。重新设计的算法实现了员工和机器人之间的无缝协作,它在扩大规模方面的有效性说服了亚马逊将AR fc作为新fc的标准,与非AR fc相比,亚马逊可以将存储空间减少约29%。历史:本文被审稿。
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引用次数: 3
Advanced Analytics Drives Reengineering of Field Operations for the 2020 U.S. Census 高级分析驱动2020年美国人口普查现场操作的重新设计
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.1287/inte.2022.1146
Tamara Adams, Alessandro Ferrucci, Pedro Carvalho, Sothiara Em, Benjamin Whitley, Ryan Cecchi, Teresa E. Hicks, Alexander Wooten, J. Cuffe, Stephanie Studds, I. Lustig, Steve Sashihara
The U.S. Census Bureau conducts a census of population and housing every 10 years as mandated in the U.S. Constitution. Following up in person with households that do not respond online, by phone, or by mail, which is known as nonresponse follow-up (NRFU), represents a major component of this effort. For the 2010 Census, the Census Bureau equipped enumerators with paper maps and notebooks filled with questionnaires and required enumerators to go door to door and collect decennial census data. The enumerators met daily with their supervisors to return completed questionnaires and update payroll information. For the 2020 Census, an advanced analytics solution, utilizing machine learning and optimization techniques, drove a reengineering of the entire field operations process, leading to substantially reduced costs and improved productivity. These reengineering efforts included business processes and technology centered around the development of this solution, the MOJO Optimizer, and resulted in an 80% increase in the number of cases completed per hour (from 1.05 to 1.92) and a 27% decrease in the number of miles reimbursed per case (from 5.05 to 3.68) compared with the 2010 Census NRFU. Capitalizing on the massive innovations realized during decennial census operations, the Census Bureau intends to use this technology to revolutionize its over 90 active surveys.
根据美国宪法的规定,美国人口普查局每10年对人口和住房进行一次普查。亲自跟踪那些没有在网上、电话或邮件上作出回应的家庭,即所谓的无回应跟进(NRFU),是这项工作的一个主要组成部分。在2010年的人口普查中,人口普查局为普查员配备了纸质地图和填满问卷的笔记本,并要求普查员挨家挨户收集十年一次的人口普查数据。普查员每天与他们的主管会面,交回填好的调查问卷和更新工资资料。对于2020年的人口普查,一种先进的分析解决方案,利用机器学习和优化技术,推动了整个现场操作流程的重新设计,从而大大降低了成本,提高了生产率。这些重组工作包括围绕MOJO优化器解决方案开发的业务流程和技术,与2010年人口普查NRFU相比,每小时完成的案例数量增加了80%(从1.05增加到1.92),每个案例的报销里程减少了27%(从5.05减少到3.68)。利用十年一次的人口普查操作中实现的大规模创新,人口普查局打算利用这项技术彻底改变其90多项正在进行的调查。
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引用次数: 0
Introduction: 2022 Franz Edelman Award for Achievement in Advanced Analytics, Operations Research, and Management Science 简介:2022年Franz Edelman高级分析、运筹学和管理科学成就奖
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.1287/inte.2022.1148
Carrie Beam, Pelin Pekgün
This special issue of the INFORMS Journal on Applied Analytics (formerly Interfaces) is devoted to the finalists of the 52nd annual competition for the Franz Edelman Award for Achievement in Advanced Analytics, Operations Research, and Management Science, the profession’s most prestigious award for deployed work. As in previous years, the finalists this year cover a wide range of industries and functions.
这期INFORMS应用分析杂志(以前的Interfaces)的特刊致力于第52届Franz Edelman高级分析、运筹学和管理科学成就奖年度竞赛的决赛入围者,该奖项是业界最负盛名的部署工作奖项。与往年一样,今年的决赛选手涵盖了广泛的行业和职能。
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引用次数: 0
Analytics Saves Lives During the COVID-19 Crisis in Chile 分析在智利COVID-19危机期间拯救生命
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.1287/inte.2022.1149
L. Basso, M. Goic, Marcelo Olivares, Denis Sauré, Charles Thraves, Aldo G. Carranza, G. Weintraub, Julio Covarrubia, Cristian Escobedo, Natalia Jara, Antonio Moreno, Demian Arancibia, M. Fuenzalida, J. P. Uribe, Felipe Zúñiga, M. Zúñiga, M. O’Ryan, E. Santelices, J. P. Torres, M. Badal, Mirko Bozanic, Sebastián Cancino-Espinoza, Eduardo Lara, Ignasi Neira
During the COVID-19 crisis, the Chilean Ministry of Health and the Ministry of Sciences, Technology, Knowledge and Innovation partnered with the Instituto Sistemas Complejos de Ingeniería (ISCI) and the telecommunications company ENTEL, to develop innovative methodologies and tools that placed operations research (OR) and analytics at the forefront of the battle against the pandemic. These innovations have been used in key decision aspects that helped shape a comprehensive strategy against the virus, including tools that (1) provided data on the actual effects of lockdowns in different municipalities and over time; (2) helped allocate limited intensive care unit (ICU) capacity; (3) significantly increased the testing capacity and provided on-the-ground strategies for active screening of asymptomatic cases; and (4) implemented a nationwide serology surveillance program that significantly influenced Chile’s decisions regarding vaccine booster doses and that also provided information of global relevance. Significant challenges during the execution of the project included the coordination of large teams of engineers, data scientists, and healthcare professionals in the field; the effective communication of information to the population; and the handling and use of sensitive data. The initiatives generated significant press coverage and, by providing scientific evidence supporting the decision making behind the Chilean strategy to address the pandemic, they helped provide transparency and objectivity to decision makers and the general population. According to highly conservative estimates, the number of lives saved by all the initiatives combined is close to 3,000, equivalent to more than 5% of the total death toll in Chile associated with the pandemic until January 2022. The saved resources associated with testing, ICU beds, and working days amount to more than 300 million USD. Funding: This work was supported by the ANID PIA/APOYO [Grant AFB180003 and AFB220003], used to hire research assistants for developing solutions, information systems, data management, and training of field staff. Fieldwork was funded by the Ministry of Health of the Government of Chile. M. Goic acknowledges the financial support of Fondecyt [Project 1221711] and the Institute for Research in Market Imperfections and Public Policy [Grant IS130002 ANID]. D. Sauré acknowledges the financial support of Fondecyt [Project 1211407]. Finally, G. Weintraub and A. Carranza thank the Stanford RISE COVID-19 Crisis Response Faculty Seed Grant Program for helpful financial support.
在2019冠状病毒病危机期间,智利卫生部和科学、技术、知识和创新部与Ingeniería综合系统研究所(ISCI)和电信公司ENTEL合作,开发了创新的方法和工具,将运筹学(OR)和分析置于抗击疫情的最前沿。这些创新已被用于关键决策方面,帮助制定了针对该病毒的全面战略,包括以下工具:(1)提供关于不同城市和时间封锁实际效果的数据;(2)帮助分配有限的重症监护病房(ICU)容量;(3)显著提高检测能力,为主动筛查无症状病例提供实地策略;(4)实施了一项全国性的血清学监测计划,该计划对智利有关疫苗加强剂量的决定产生了重大影响,并提供了具有全球相关性的信息。项目执行过程中的重大挑战包括协调该领域的大型工程师、数据科学家和医疗保健专业人员团队;向公众有效传播信息;以及敏感数据的处理和使用。这些举措引起了大量的新闻报道,并通过提供科学证据支持智利应对这一流行病战略背后的决策,有助于向决策者和一般民众提供透明度和客观性。根据高度保守的估计,所有这些举措挽救的生命总数接近3000人,相当于智利到2022年1月为止与大流行相关的总死亡人数的5%以上。节省检测、ICU床位、工作日等相关资源3亿多美元。资助:本工作由ANID PIA/APOYO [Grant AFB180003和AFB220003]支持,用于聘请研究助理开发解决方案、信息系统、数据管理和现场工作人员培训。实地工作由智利政府卫生部资助。M. Goic感谢Fondecyt[项目1221711]和市场缺陷与公共政策研究所[拨款IS130002 ANID]的财政支持。D. saur感谢Fondecyt [Project 1211407]的财政支持。最后,G. Weintraub和A. Carranza感谢斯坦福大学RISE COVID-19危机应对教师种子资助计划提供的有益财政支持。
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引用次数: 2
Merck Animal Health Uses Operations Research Methods to Transform Biomanufacturing Productivity for Lifesaving Medicines 默克动物保健公司利用运筹学方法提高生物生产效率,生产救命药品
IF 1.4 4区 管理学 Q4 MANAGEMENT Pub Date : 2023-01-01 DOI: 10.1287/inte.2022.1147
Tugce G. Martagan, I. Adan, M. Baaijens, Coen Dirckx, Oscar Repping, Bram van Ravenstein, PK Yegneswaran
Merck Animal Health offers veterinarians, farmers, pet owners and governments one of the widest ranges of veterinary pharmaceuticals, vaccines and health management solutions. After four years of collaboration where vision met opportunity, a portfolio of optimization and decision support applications were implemented that substantially improved biomanufacturing effectiveness. Biomanufacturing uses living organisms (i.e., viruses and bacteria) to grow active ingredients in vaccines and therapeutics. This high-tech manufacturing process generates challenges not found in many other industries. Additionally, the high cost of equipment and labor-intensive nature of operations precluded the ability to just add capacity. Operations research was critical to meet these challenges. The implementation of the developed models had a significant impact by generating $200 million of additional revenue without the need for additional raw materials, energy resources, or new equipment. The work has been vital to the increased biomanufacturing efficiency for the company.
默克动物保健为兽医、农民、宠物主人和政府提供最广泛的兽药、疫苗和健康管理解决方案。经过四年的合作,我们实现了一系列优化和决策支持应用程序,大大提高了生物制造的效率。生物制造使用活生物体(即病毒和细菌)来培养疫苗和治疗药物中的活性成分。这种高科技制造过程带来了许多其他行业所没有的挑战。此外,设备的高成本和作业的劳动密集型性质阻碍了仅仅增加产能的能力。运筹学对于应对这些挑战至关重要。开发模型的实施产生了显著的影响,在不需要额外的原材料、能源或新设备的情况下,产生了2亿美元的额外收入。这项工作对提高公司的生物制造效率至关重要。
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引用次数: 2
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Informs Journal on Applied Analytics
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