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2019 Winter Simulation Conference (WSC)最新文献

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BPMN-Based Business Process Modeling and Simulation 基于bpmn的业务流程建模与仿真
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004960
Paolo Bocciarelli, A. D’Ambrogio, Andrea Giglio, Emiliano Paglia
{"title":"BPMN-Based Business Process Modeling and Simulation","authors":"Paolo Bocciarelli, A. D’Ambrogio, Andrea Giglio, Emiliano Paglia","doi":"10.1109/WSC40007.2019.9004960","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004960","url":null,"abstract":"A business process (BP) can be defined a set of tasks that are coordinately performed by an organization to achieve a business goal. M$S (Modeling & Simulation) techniques are widely and effectively adopted for BP analysis. A BP M$S approach is typically carried out by first building a simulation model (from a conceptual model of the BP under analysis), and then producing the software implementation of the simulation model, so to eventually execute the simulation code and get the results of interest. The standard language currently used to define BP models is the OMGs BPMN (Business Process Model and Notation). This paper presents a BPMN-based M$S approach that introduces a BPMN extension to specify BP simulation models as annotated BPMN models, and a domain-specific BP simulation language to specify and execute simulation model implementations, which can be seamlessly derived from annotated BPMN models by use of automated model transformations.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"22 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":"125306845","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
Distributed Variational Inference-Based Heteroscedastic Gaussian Process Metamodeling 基于分布变分推理的异方差高斯过程元建模
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004911
Wen Wang, Xi Chen
{"title":"Distributed Variational Inference-Based Heteroscedastic Gaussian Process Metamodeling","authors":"Wen Wang, Xi Chen","doi":"10.1109/WSC40007.2019.9004911","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004911","url":null,"abstract":"In this paper, we generalize the variational Bayesian inference-based Gaussian process (VBGP) modeling approach for handling large-scale heteroscedastic datasets. VBGP is suitable for simultaneously estimating the underlying mean and variance functions with a single simulation output available at each design point. To improve the scalability of VBGP, we consider building distributed VBGP (DVBGP) models and their hierarchical versions by partitioning a dataset and aggregating individual subset VBGP predictions based on the idea of \"transductive combination of GP experts.\" Numerical evaluations are performed to demonstrate the performance of the DVBGP models from which some insights are derived.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"6 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":"124367514","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 Reliable Deployment Strategy for Public Electric Vehicle Charging Stations: A Discrete Event Simulation Model for Power Grid and Traffic Networks 公共电动汽车充电站的可靠部署策略：电网和交通网络的离散事件仿真模型
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004794
Y. Maïzi, E. C. Zhu, Ting Wu, Jianhao Zhou
{"title":"A Reliable Deployment Strategy for Public Electric Vehicle Charging Stations: A Discrete Event Simulation Model for Power Grid and Traffic Networks","authors":"Y. Maïzi, E. C. Zhu, Ting Wu, Jianhao Zhou","doi":"10.1109/WSC40007.2019.9004794","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004794","url":null,"abstract":"Today, with the help of low-cost and clean electricity, electric vehicles (EVs) show great potential for future urban transportation with little greenhouse gas emissions and air pollution. However, the use of EVs is still in its infancy with limited numbers of users worldwide. Public charging infrastructures can be one of the drivers to enhance the prevalence of EVs. In this paper, we aim to develop a framework to establish a reliable urban public charging infrastructure. We first determine the optimal locations and size of those stations by a robust optimization model incorporating uncertain traffic flows and existing power grid networks; and then we use a discrete event simulation approach to model more realistic charging demands. We further improve these optimal solutions and verify the EV charging infrastructure considering both power and transportation networks. We validate our models with real traffic and power grid data from a Southeast Chinese municipality.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"69 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":"127758122","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
Safety and Performance Implications of Wake Vortex Buffers 尾流涡流缓冲器的安全性和性能影响
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004748
F. Wieland
{"title":"Safety and Performance Implications of Wake Vortex Buffers","authors":"F. Wieland","doi":"10.1109/WSC40007.2019.9004748","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004748","url":null,"abstract":"This paper presents a simulation-based study of the performance implications of spacing buffers in the United States’ Air Traffic Control System. A spacing buffer is used during instrument flight operations, when radar control is active. The buffer represents additional spacing between successive flights beyond what is required so that separation violations rarely, if ever, occur. In contrast, during non-radar visual operations, spacing at or near the minimum occurs when pilots request and are granted visual clearances. Using published data derived from multilateration surveillance systems, this study describes a simulation experiment created to understand the performance implications of actual separations for controlled flights when instrument flight rules are active. The results show, unsurprisingly, that there is a statistically meaningful increase in delays as the spacing buffer increases. These results also demonstrate how, during weather-triggered radar operations, the air traffic system at busy airports can become congested and delays escalate.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"158 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":"127587018","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
Heterogeneous Assets Market Design 异质资产市场设计
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004708
Yu An, Zeyu Zheng
{"title":"Heterogeneous Assets Market Design","authors":"Yu An, Zeyu Zheng","doi":"10.1109/WSC40007.2019.9004708","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004708","url":null,"abstract":"In this paper, we study market design issues for heterogeneous assets. We consider a setting with multiple assets and multiple traders. The new modeling feature is that a social planner can decide to shut down some asset markets so that no traders can trade these assets. We show that closing down some asset markets can increase the total volume of trades by all traders. This is because a smaller number of assets available to trade can reduce coordination failures between different traders, and therefore improves the overall matching efficiency. Using numerical simulation, we study the optimal numbers of markets to open under different scenarios. This has practical implications towards the optimal design of session-based trading protocols in the corporate and municipal bond markets. This problem naturally leads to the use of simulation to select the best system from all possible market design choices. We implement simulation experiments to demonstrate our finding and analyze sensitivities to several market-relevant parameters.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"36 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":"128760912","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
SDN Resiliency to Controller Failure in Mobile Contexts 移动环境下SDN对控制器故障的弹性
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004899
D. Nicol, Rakesh Kumar
{"title":"SDN Resiliency to Controller Failure in Mobile Contexts","authors":"D. Nicol, Rakesh Kumar","doi":"10.1109/WSC40007.2019.9004899","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004899","url":null,"abstract":"Software defined networking (SDN) is a technology for management of computer networks. We are interested in SDNs where the switches are mounted on vehicles, the controller is airborne, and connectivity changes dynamically as a result of vehicular movement. The challenge of interest is that when a controller fails the switches are left with whatever configuration they had at the point of failure. Without a controller, as the switches move and links become unuseable, flows configured to use those links are broken unless the configuration has anticipated such events and provided alternative routes. We describe a high fidelity SDN network simulator which uses snapshots of actual switch configurations and analyzes their resilience to impacts of controller failure. We propose an algorithm for backup paths which is guaranteed to not cause loops, and conduct a simulation study to understand the types of domains where have the greatest impact on network performance.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"9 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":"127438520","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
Deriving Simulation Models from Data: Steps of Simulation Studies Revisited 从数据中推导仿真模型:再访仿真研究的步骤
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004697
S. Lazarova-Molnar, Xueping Li
{"title":"Deriving Simulation Models from Data: Steps of Simulation Studies Revisited","authors":"S. Lazarova-Molnar, Xueping Li","doi":"10.1109/WSC40007.2019.9004697","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004697","url":null,"abstract":"Simulation is typically a result of a tremendous amount of work performed by experts in various fields, usually in computer science, mathematics and the corresponding application area. The currently uncomplicated accessibility to data provides a significant opportunity to reduce the requirements for expert knowledge in some aspects, or at least to only utilize expert knowledge to supplement and validate data-derived models, or, vice versa, use collected data to confirm and validate existing expert knowledge. In this paper we explore the idea of derivation of simulation models from data. We, furthermore, survey and summarize related existing efforts for the most popular simulation paradigms, identifying benefits, opportunities and challenges, as well as discuss the ways in which the traditional simulation study processes are impacted.","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":"129055612","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: 7
A Robust Optimization Approach for Production Planning Under Exogenous Planned Lead Times 外生计划交货期下生产计划的鲁棒优化方法
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004671
Erinç Albey, Ihsan Yanikoglu, R. Uzsoy
{"title":"A Robust Optimization Approach for Production Planning Under Exogenous Planned Lead Times","authors":"Erinç Albey, Ihsan Yanikoglu, R. Uzsoy","doi":"10.1109/WSC40007.2019.9004671","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004671","url":null,"abstract":"Many production planning models applied in semiconductor manufacturing represent lead times as fixed exogenous parameters. However, in reality, lead times must be treated as realizations of released lots’ cycle times, which are in fact random variables. In this paper, we present a distributionally robust release planning model that allows planned lead time probability estimates to vary over a specified ambiguity set. We evaluate the performance of non-robust and robust approaches using a simulation model of a scaled-down wafer fabrication facility. We examine the effect of increasing uncertainty in the estimated lead time parameters on the objective function value and compare the worst-case, average optimality, and feasibility of the two approaches. The numerical results show that the average objective function value of the robust solutions are better than that of the nominal solution by a margin of almost 20% in the scenario with the highest uncertainty level.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"106 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":"130660613","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
Solving Challenges at the Interface of Simulation and Big Data Using Machine Learning 利用机器学习解决模拟和大数据界面的挑战
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004755
P. Giabbanelli
{"title":"Solving Challenges at the Interface of Simulation and Big Data Using Machine Learning","authors":"P. Giabbanelli","doi":"10.1109/WSC40007.2019.9004755","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004755","url":null,"abstract":"Modeling & Simulation (M&S) and Machine Learning (ML) have been used separately for decades. They can also straightforwardly be employed in the same study by contrasting the results of a theory-driven M&S model with the most accurate data-driven ML model. In this paper, we propose a paradigm shift from seeing ML and M&S as two independent activities to identifying how their integration can solve challenges that emerge in a big data context. Since several works have already examined this interaction for conceptual modeling or model building (e.g., creating components with ML and embedding them in the M&S model), our analysis is devoted on three relatively under-studied stages: calibrating a simulation model using ML, dealing with the issues of large search space by employing ML for experimentation, and identifying the right visualizations of model output by applying ML to characteristics of the output or actions of the users.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"413 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":"116699255","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
Bus Fleet Size Dimensioning In an International Airport Using Discrete Event Simulation 基于离散事件模拟的国际机场公交车队规模测算
2019 Winter Simulation Conference (WSC) Pub Date : 2019-12-01 DOI: 10.1109/WSC40007.2019.9004878
E. López, F. Marmier, F. Fontanili
{"title":"Bus Fleet Size Dimensioning In an International Airport Using Discrete Event Simulation","authors":"E. López, F. Marmier, F. Fontanili","doi":"10.1109/WSC40007.2019.9004878","DOIUrl":"https://doi.org/10.1109/WSC40007.2019.9004878","url":null,"abstract":"The continuous growth of airport operations generates continuous infrastructure expansion needs at international airports. In some cases, in the face of limitations in short-term expansions, the immediate solution is the creation of remote positions that allow a greater number of flights to be attended but which require the use of bus fleets to attend passenger boarding and disembarking operations. The sizing of the buses will allow to reduce the waiting times of flights below the level of service required by international standards. For this purpose, the development of a discrete event simulation model integrated to the transactional flight database is proposed. In the literature, although many references to simulation models have been found in airports, they have not been specifically focused in order to size and manage the bus fleet. Simulation experiments of this model under the management of scenarios allows to identify the bus fleet size required.","PeriodicalId":127025,"journal":{"name":"2019 Winter Simulation Conference (WSC)","volume":"231 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":"132806399","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
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