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2019 Winter Simulation Conference (WSC)最新文献

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Topics in Discrete Events Simulation For Business Students 商科学生离散事件模拟主题
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004924
I. Ståhl
{"title":"Topics in Discrete Events Simulation For Business Students","authors":"I. Ståhl","doi":"10.1109/WSC40007.2019.9004924","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004924","url":null,"abstract":"This paper is focused on the issue of how one can get Discrete Events Simulation (DES) more used in Business Schools, since this type of simulation allows students to do interesting simulation projects in companies. We list a great number of project topics that we in four countries have given our business students and which they have been able to carry out successfully as part of an introductory course, requiring one month of work. This list of topics can hopefully give also other students ideas for project work. For some of these topics we also bring out some interesting details.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128142053","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: 2
Semantic Enrichment of Spatio-Temporal Production Data to Determine Lead Times for Manufacturing Simulation 时空生产数据的语义丰富，以确定制造仿真的交货时间
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004753
Carina Mieth
{"title":"Semantic Enrichment of Spatio-Temporal Production Data to Determine Lead Times for Manufacturing Simulation","authors":"Carina Mieth","doi":"10.1109/WSC40007.2019.9004753","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004753","url":null,"abstract":"Data from real-time indoor localization systems (RTILS) based on ultra-wideband (UWB) technology provide spatio-temporal information on the material flows of production orders on the shop floor. This paper investigates how historical position data can be used for the determination of lead times and respective time shares. We propose three different approaches for the enrichment of spatio-temporal trajectories with process information. Two of them are online algorithms for the automated posting of process times using either points or areas of interest. The third is an offline classification problem that minimizes the error that occurs during the assignment of measurements to processes when generating semantic trajectories. Furthermore, a sensor fusion concept is presented, which is necessary to split up the lead times of the operations in smaller time shares for simulation input modeling.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131836860","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: 1
A New Partition-Based Random Search Method for Deterministic Optimization Problems 确定性优化问题中一种新的基于分区的随机搜索方法
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004850
Ziwei Lin, Shichang Du, A. Matta
{"title":"A New Partition-Based Random Search Method for Deterministic Optimization Problems","authors":"Ziwei Lin, Shichang Du, A. Matta","doi":"10.1109/WSC40007.2019.9004850","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004850","url":null,"abstract":"The Nested Partition (NP) method is efficient in large-scale optimization problems. The most promising region is identified and partitioned iteratively. To guarantee the global convergence, a backtracking mechanism is introduced. Nevertheless, if inappropriate partitioning rules are used, lots of backtracking occur reducing largely the algorithm efficiency. A new partition-based random search method is developed in this paper. In the proposed method, all generated regions are stored for further partitioning and each region has a partition speed related to its posterior probability of being the most promising region. Promising regions have higher partition speeds while non-promising regions are partitioned slowly. The numerical results show that the proposed method finds the global optimum faster than the pure NP method if numerous high-quality local optima exist. It can also find all the identical global optima, if exist, in the studied case.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134462169","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
Risk-Aware Business Process Modeling: A Comparison of Discrete Event And Agent-Based Approaches 风险意识业务流程建模:离散事件和基于代理方法的比较
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004822
Emilio Sulis, Ilaria Angela Amantea, G. Fornero
{"title":"Risk-Aware Business Process Modeling: A Comparison of Discrete Event And Agent-Based Approaches","authors":"Emilio Sulis, Ilaria Angela Amantea, G. Fornero","doi":"10.1109/WSC40007.2019.9004822","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004822","url":null,"abstract":"Risk analysis is one of the most challenging task in a business process management perspective. In healthcare, risk management focuses on events having a relevant impact on patients safety. We investigate the context of a blood-bank, which is one of the most critical hospital department, by comparing two different modeling approaches to perform a risk-aware business process management. Our main interest here is to discuss advantages and disadvantages of discrete-event and agent-based modeling approaches. We adopt two specific tools and collected feedback from modelers, staff and decision makers. We identify differences in the analysis of risks from the two perspectives, such as the possibility to include agents-environment interactions, as well as structured approaches to discover potential failures. Our results include assessment for risk management, shedding some light on practical applications of process modeling and simulation in healthcare.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":" 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132124258","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: 6
Deadlock and Collision Handling for Automated Rail-Based Storage and Retrieval Units 基于轨道的自动存储和检索单元的死锁和冲突处理
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004740
M. Müller, S. Schmidt, T. Reggelin
{"title":"Deadlock and Collision Handling for Automated Rail-Based Storage and Retrieval Units","authors":"M. Müller, S. Schmidt, T. Reggelin","doi":"10.1109/WSC40007.2019.9004740","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004740","url":null,"abstract":"When planning logistics systems with multiple transport objects or systems, modeling requires the implementation of complex control logic to avoid collisions and deadlocks. This paper illustrates a procedure for the development of such control logic on the example of rail-based storage and retrieval units in combinations with lifts in the picking area of an industrial laundry. Typical collision situations and a possible solution approach for avoiding these are described. In addition, a discrete event simulation demonstrates which situations occur most frequently depending on warehouse dimensioning.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122583464","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: 3
Metamodel-Based Quantile Estimation for Hedging Control of Manufacturing Systems 基于元模型的制造系统对冲控制分位数估计
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004807
Giulia Pedrielli, R. Barton
{"title":"Metamodel-Based Quantile Estimation for Hedging Control of Manufacturing Systems","authors":"Giulia Pedrielli, R. Barton","doi":"10.1109/WSC40007.2019.9004807","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004807","url":null,"abstract":"Hedging-based control policies release a job into the system so that the probability of a job completing by its deadline is acceptable; job release decisions are based on quantile estimates of the job lead times. In multistage systems, these quantiles cannot be calculated analytically. In such cases, simulation can provide useful estimates, but computing a simulation-based quantile at the time of a job release decision is impractical. We explore a metamodeling approach based on efficient experiment design that can allow, after an offline learning phase, a metamodel estimate for the state-dependent lead time quantile. This allows for real time control if the metamodel is accurate, and computationally fast. In preliminary testing of a three-stage production system we find high accuracy for quadratic and cubic regression metamodels. These preliminary findings suggest that there is potential for metamodel-based hedging policies for real time control of manufacturing systems.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124056544","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: 1
Simulation Education: A Survey of Faculty and Practitioners 模拟教育:教师和实践者的调查
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004663
M. A. Mesquita, Bruna Carvalho da Silva, J. V. Tomotani
{"title":"Simulation Education: A Survey of Faculty and Practitioners","authors":"M. A. Mesquita, Bruna Carvalho da Silva, J. V. Tomotani","doi":"10.1109/WSC40007.2019.9004663","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004663","url":null,"abstract":"This paper aims to raise current simulation teaching practices and identify the challenges and opportunities for improvement in simulation education. A survey was carried out with authors and chairs of Simulation Education tracks of the Winter Simulation Conference editions from 2000 to 2017. The results highlighted the primary practices, difficulties, and opportunities for improvement, raised by professionals that currently teach or used to teach simulation in undergraduate courses in engineering, computer science, and business administration, among others. Two issues highlighted in the survey are the balance between theory and practice, and the role of simulation projects as a tool to consolidate the learning process in simulation education. We found that professors value simulation projects in the discipline and the importance of working with real-world problems. Finally, the present survey identified a concern within the academic community in discussing and improving the process of teaching and learning simulation.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124081579","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: 4
Simulation-Based Optimization of Sequencing Buffer Allocation in Automated Storage and Retrieval Systems for Automobile Production 基于仿真的汽车生产自动化存取系统中缓冲资源排序优化
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004768
Christian Urnauer, E. Bosch, J. Metternich
{"title":"Simulation-Based Optimization of Sequencing Buffer Allocation in Automated Storage and Retrieval Systems for Automobile Production","authors":"Christian Urnauer, E. Bosch, J. Metternich","doi":"10.1109/WSC40007.2019.9004768","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004768","url":null,"abstract":"In production control with a stable order sequence, the assembly order is fixed in the form of the so-called pearl chain. However, parallelism and instabilities in the production process cause scrambling in the order sequence. The stability of the order sequence can be increased by using sequencing buffers between the individual production units. In the automobile industry, all sequencing buffers frequently share one large automated storage and retrieval system (AS/RS) with limited capacity. In existing approaches for dimensioning sequencing buffers, this shared capacity restriction is not considered, even though the optimal distribution of buffer capacity might be an important lever for increasing the sequence stability. Therefore, the focus of this paper is the identification of the optimal capacity distribution between several sequencing buffers using the same storage area. A greedy simulation-based improvement heuristic is developed which makes it possible to find promising solutions with a practical and intuitive optimization approach.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124540340","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: 1
A Post-Brexit Transportation Scenario Analysis for an Agri-Fresh Produce Supply Chain 英国脱欧后农产品供应链运输情景分析
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004790
A. Mahfouz, Declan Allen, A. Arisha, R. Elbert, Michael Gleser
{"title":"A Post-Brexit Transportation Scenario Analysis for an Agri-Fresh Produce Supply Chain","authors":"A. Mahfouz, Declan Allen, A. Arisha, R. Elbert, Michael Gleser","doi":"10.1109/WSC40007.2019.9004790","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004790","url":null,"abstract":"The ever-increasing demand for fresh and healthy products initiated an urgency for effective planning for Agri-Fresh Produce Supply Chains (AFPSC). However, AFPSC faces many challenges, including product vulnerability to market disruption and limited shelf-life. In case of a no-deal Brexit (i.e., the UK leaving the EU without an agreement), trade between Ireland and the UK will most probably be subjected to customs control. In effect, transportation delays and products deterioration rates will increase. Based on interviews with an Irish AFPSC forwarder, a simulation model was developed to investigate different systems’ dynamics and operating rules under different delay patterns on the (yet non-existent) inner-Irish border. A cost analysis of varying border regimes favours a more thorough change in operations, e.g., route adjustments. This paper gives a first indication on how AFPSC forwarders in Ireland can deal with a no-deal Brexit situation.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128001158","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: 5
Influence of Spare Parts Service Measures on the Performance of Front-End Wafer Production Process 备件服务措施对前端晶圆生产过程性能的影响
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004919
Douniel Lamghari-Idrissi, Daniel Soellaart, R. Basten, N. Dellaert
{"title":"Influence of Spare Parts Service Measures on the Performance of Front-End Wafer Production Process","authors":"Douniel Lamghari-Idrissi, Daniel Soellaart, R. Basten, N. Dellaert","doi":"10.1109/WSC40007.2019.9004919","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004919","url":null,"abstract":"We are interested in the influence of spare part service measures on the performance of front-end wafer fabrication process. This process is characterized by re-entrant flows exacerbating variability differences. We focus on the bottleneck resource. First, we simulate the spare part supply chain to show the impact of the spare part service measures on the time to repair distribution. Second, we use this distribution to assess the performance of the front-end wafer fabrication process. We conclude that the choice of the spare parts service measure has a high impact on the front-end wafer fabrication process performance. Our methodology could help practitioners making improved decisions regarding spare parts service measure.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116383084","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: 3
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