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2019 Winter Simulation Conference (WSC)最新文献

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Balancing Optimal Large Deviations in Ranking and Selection 在排序和选择中平衡最优大偏差
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004810
Ye Chen, I. Ryzhov
{"title":"Balancing Optimal Large Deviations in Ranking and Selection","authors":"Ye Chen, I. Ryzhov","doi":"10.1109/WSC40007.2019.9004810","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004810","url":null,"abstract":"The ranking and selection problem deals with the optimal allocation of a simulation budget to efficiently identify the best among a finite set of unknown values. The large deviations approach to this problem provides very strong performance guarantees for static (non-adaptive) budget allocations. Using this approach, one can describe the optimal static allocation with a set of highly nonlinear, distribution-dependent optimality conditions whose solution depends on the unknown parameters of the output distribution. We propose a new methodology that provably learns this solution (asymptotically) and is very computationally efficient, has no tunable parameters, and works for a wide variety of output distributions.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"29 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":"116931608","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: 11
Simulation-Based Optimization Tool for Field Service Planning 基于仿真的现场服务规划优化工具
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004869
Gabriel G. Castañé, H. Simonis, Kenneth N. Brown, Yiqing Lin, Cemalettin Ozturk, Michele Garraffa, Mark Antunes
{"title":"Simulation-Based Optimization Tool for Field Service Planning","authors":"Gabriel G. Castañé, H. Simonis, Kenneth N. Brown, Yiqing Lin, Cemalettin Ozturk, Michele Garraffa, Mark Antunes","doi":"10.1109/WSC40007.2019.9004869","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004869","url":null,"abstract":"Many companies that deliver units to customer premises need to provide periodical maintenance and services on request by their field service technicians. A common challenge is to evaluate different design choices, related to staffing decisions, technician scheduling strategies, and technological improvements in order to make the system more efficient. This work provides a simulation-based optimization tool to support decision makers in tackling this challenging problem. The proposed framework relies on an optimization engine for the generation of the daily plans. A simulation component is used to evaluate the applicability of such plans by taking into account the stochastic factors. Furthermore, an interface manages the communication between these two components and allows a feedback loop between the simulator and the optimizer to achieve more robust plans. The applicability of the framework is demonstrated through a business case to evaluate different staffing decisions.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"7 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":"117061441","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 Generic Simulation Model for Selecting Fleet Size in Snow Plowing Operations 雪犁作业机队规模选择的通用仿真模型
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004954
Yipeng Li, Shuoyan Xu, Lingzi Wu, Simaan M. AbouRizk, Tae J. Kwon, Z. Lei
{"title":"A Generic Simulation Model for Selecting Fleet Size in Snow Plowing Operations","authors":"Yipeng Li, Shuoyan Xu, Lingzi Wu, Simaan M. AbouRizk, Tae J. Kwon, Z. Lei","doi":"10.1109/WSC40007.2019.9004954","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004954","url":null,"abstract":"Accumulated snow on roads poses a threat to traffic systems and rouses significant safety concerns. Snow plowing is often used to recover roads in the event of heavy snow. Due to the unpredictability of weather conditions, it is difficult to determine the overall performance of a certain truck fleet size, thus make it challenging to estimate the number of snow plow trucks needed for a given highway area. The objective of this research is to estimate the truck fleet performance under uncertain weather conditions, and to provide decision support for selecting a reasonable fleet size. A generic simulation model is developed in the Simphony.NET environment. Weather, road network, and truck speed data are entered as inputs, and Monte Carlo simulation is used to generate random snow events to quantify the performance. A case study is developed and presented to demonstrate the practicality and feasibility of the proposed model.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"48 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":"116727485","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 LEGO® Manufacturing System as Demonstrator for A Real-Time Simulation Proof of Concept LEGO®制造系统作为实时仿真概念验证的演示器
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004733
Giovanni Lugaresi, D. Travaglini, A. Matta
{"title":"A LEGO® Manufacturing System as Demonstrator for A Real-Time Simulation Proof of Concept","authors":"Giovanni Lugaresi, D. Travaglini, A. Matta","doi":"10.1109/WSC40007.2019.9004733","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004733","url":null,"abstract":"Digital models for planning and control of production systems are a key asset for manufacturers to gain or maintain their leadership. However, these models are often based on frameworks that do not take into account the real-time dimension, hence it is arduous to exploit them for taking short-term decisions over complex systems. The goal of this work is to prove the applicability of a Real-Time Simulation (RTS) framework that prescribes to exchange current-status data from a manufacturing system and to run alternative simulation models to decide the next moves. For this scope, we exploit a LEGO® Manufacturing System (LMS) together with a discrete event simulator that plays the role of its digital model. The results of this proof of concept show that the proposed framework can effectively be used to find better production rules for a manufacturing system in real-time manner.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"285 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":"115218317","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: 9
Agent Based Simulation of Bot Disinformation Maneuvers in Twitter 基于智能体的Twitter机器人虚假信息机动仿真
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004942
David M. Beskow, Kathleen M. Carley
{"title":"Agent Based Simulation of Bot Disinformation Maneuvers in Twitter","authors":"David M. Beskow, Kathleen M. Carley","doi":"10.1109/WSC40007.2019.9004942","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004942","url":null,"abstract":"Multiple state and non-state actors have recently used social media to conduct targeted disinformation operations for political effect. Even in the wake of these attacks, researchers struggle to fully understand these operations and more importantly measure their effect. The existing research is complicated by the fact that modeling and measuring a persons beliefs is difficult, and manipulating these beliefs in experimental settings is not morally permissible. Given these constraints, our team designed an Agent Based Model that is designed to allow researchers to explore various disinformation forms of maneuver in a virtual environment. This model mirrors the Twitter Social Media Environment and is grounded in social influence theory. Having built this model, we demonstrate its use in exploring two disinformation forms of maneuver: 1) \"backing\" key influencers and 2) \"bridging\" two communities.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"2 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":"115225389","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: 14
The Impact of Geographic Scale on Identifying Different Social Media Behavior Extremes in Crisis Research 危机研究中地理尺度对识别不同社交媒体极端行为的影响
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004695
R. Samuels, J. Taylor
{"title":"The Impact of Geographic Scale on Identifying Different Social Media Behavior Extremes in Crisis Research","authors":"R. Samuels, J. Taylor","doi":"10.1109/WSC40007.2019.9004695","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004695","url":null,"abstract":"Our relationship with technology is constantly evolving, and that relationship is adapting even more quickly when faced with disaster. Understanding how to utilize human interactions with technology and the limitations of those interactions will be a crucial building block to contextualizing crisis data. The impact of scale on behavioral change analyses is an unexplored yet necessary facet of our ability to identify relative severities of crisis situations, magnitudes of localized crises, and total durations of disaster impacts. In order to analyze the impact of increasing scale on the identification of extreme behaviors, we aggregated Twitter data from Houston, Texas circa Hurricane Harvey across a wide range of scales. We found inversely related power law relationships between the identification of sharp Twitter activity bursts and sharp activity drop-offs. The relationships between these variables indicate the direct, definable dependence of social media aggregation analyses on the scale at which they are performed.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"2007 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":"125587802","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
Considering Energy-Related Factors in the Simulation of Logistics Systems 物流系统仿真中能源相关因素的考虑
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004734
Moritz Poeting, Bastian Prell, M. Rabe, Tobias Uhlig, S. Wenzel
{"title":"Considering Energy-Related Factors in the Simulation of Logistics Systems","authors":"Moritz Poeting, Bastian Prell, M. Rabe, Tobias Uhlig, S. Wenzel","doi":"10.1109/WSC40007.2019.9004734","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004734","url":null,"abstract":"Traditionally, aspects such as emissions and energy consumption have to be taken into account for environmental and economic reasons when it comes to transport. In other areas of logistics, such as production logistics and intralogistics, the energy aspect is also becoming increasingly important. Existing literature has been recently reviewed in a contribution of the Arbeitsgemeinschaft Simulation (ASIM) to the Winter Simulation Conference 2018 (Uhlig et al. 2018) to develop a map of common approaches and best practices for manufacturing and logistics systems. In the paper presented here, as a complement we are focusing on the application of energy simulation in logistics to give a comprehensive overview and present exemplary case studies. Furthermore, we show a classification of approaches to combine energy aspects with simulation. Finally, we will discuss open questions and future trends in this field of research.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"80 4 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":"126221661","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
Integrating Model-Driven Engineering as the Next Challenge for Artificial Intelligence – Application to Risk and Crisis Management 集成模型驱动工程作为人工智能的下一个挑战——在风险和危机管理中的应用
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004828
F. Bénaben, M. Lauras, Audrey Fertier, Nicolas Salatgé
{"title":"Integrating Model-Driven Engineering as the Next Challenge for Artificial Intelligence – Application to Risk and Crisis Management","authors":"F. Bénaben, M. Lauras, Audrey Fertier, Nicolas Salatgé","doi":"10.1109/WSC40007.2019.9004828","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004828","url":null,"abstract":"Artificial Intelligence (AI) is currently on top of the hype regarding simultaneously research publications and industrial development. However, the current status of AI makes it quite far and different from the current understanding of Human intelligence. One suggestion that is made in this article is that Model-Driven approaches could be considered as an interesting avenue to complement classical visions of AI and to provide some missing features. Specifically, the use of Model-Driven Engineering tools (such as metamodel and model transformation) could benefit to the domain of AI by introducing a way to extend the apprehension of unknown situations. To support that proposal, an illustrative example is provided regarding the domain of risk and crisis management.","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":"126034545","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
An Agent-Based Modelling Framework for Urban Agriculture 基于agent的都市农业建模框架
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004854
Adam Ghandar, G. Theodoropoulos, Miner Zhong, Bowen Zheng, Shijie Chen, Yue Gong, A. Ahmed
{"title":"An Agent-Based Modelling Framework for Urban Agriculture","authors":"Adam Ghandar, G. Theodoropoulos, Miner Zhong, Bowen Zheng, Shijie Chen, Yue Gong, A. Ahmed","doi":"10.1109/WSC40007.2019.9004854","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004854","url":null,"abstract":"Agricultural innovation is imperative in order to meet global challenges to sustainably feed large urban populations. This paper contributes a modelling framework for urban agriculture, and an implementation in a scenario based on the fast growing mega city of Shenzhen located near Hong Kong in southern China. We also review related work and provide a gap analysis between requirements for modelling modern urban agricultural systems versus related work that looks at agricultural supply chains, production, and land use. The proposed framework will facilitate developing a novel decision support system to coordinate decentralized urban agricultural production units in order to realize, at scale, numerous benefits from co-locating production and consumption in the urban environment.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"66 8 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":"126399051","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
Validation Risk in Hierarchical Models 层次模型中的验证风险
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004868
John B. Young, B. Ezell
{"title":"Validation Risk in Hierarchical Models","authors":"John B. Young, B. Ezell","doi":"10.1109/WSC40007.2019.9004868","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004868","url":null,"abstract":"Using a model as an input data source for integration into another model carries with it risks to the validity of the model composition. This paper presents research into the inherent risks of model integration. The research decomposes models into sets of semantic concepts allowing for a calculation of structural alignment. Measurable changes in a model’s output due to the integration of another model provide an impact assessment. Risks to decisions arise from incompatible assumptions and constructions of models. We present a risk assessment as a tuple containing differences in models’ alignment across three axes and in changes in a model’s output metrics. Risks to decisions arise from incompatible assumptions and constructions of models.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"35 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":"126423670","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
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