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Proceedings of the 2011 Winter Simulation Conference (WSC)最新文献

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What is new with the activity world view in modeling and simulation? using activity as a unifying guide for modeling and simulation 活动世界观在建模和仿真方面有什么新特点?使用活动作为建模和仿真的统一指南
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147991
A. Muzy, D. Hill
{"title":"What is new with the activity world view in modeling and simulation? using activity as a unifying guide for modeling and simulation","authors":"A. Muzy, D. Hill","doi":"10.1109/WSC.2011.6147991","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147991","url":null,"abstract":"Among the four well known conceptual frameworks for simulation, the activity scanning strategy is one possible world-view. Other usual strategies (process-based, event-based or three phase approach) can be used. Depending on the problem to be modeled, one view will be more adapted and ease the implementation. In a system specification, the integration of the usual world-views should be clear. The concept of activity is shared by all the known conceptual frameworks and is a key aspect of simulation. In this paper we emphasize on what is new with activity-based modeling and simulation, and provide new definitions. In addition, we propose a multi-level life cycle adapted to activity aware simulations.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131350578","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: 12
Automatic surrogate model type selection during the optimization of expensive black-box problems 在昂贵的黑盒问题优化过程中自动选择代理模型类型
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6148114
I. Couckuyt, F. Turck, T. Dhaene, D. Gorissen
{"title":"Automatic surrogate model type selection during the optimization of expensive black-box problems","authors":"I. Couckuyt, F. Turck, T. Dhaene, D. Gorissen","doi":"10.1109/WSC.2011.6148114","DOIUrl":"https://doi.org/10.1109/WSC.2011.6148114","url":null,"abstract":"The use of Surrogate Based Optimization (SBO) has become commonplace for optimizing expensive black-box simulation codes. A popular SBO method is the Efficient Global Optimization (EGO) approach. However, the performance of SBO methods critically depends on the quality of the guiding surrogate. In EGO the surrogate type is usually fixed to Kriging even though this may not be optimal for all problems. In this paper the authors propose to extend the well-known EGO method with an automatic surrogate model type selection framework that is able to dynamically select the best model type (including hybrid ensembles) depending on the data available so far. Hence, the expected improvement criterion will always be based on the best approximation available at each step of the optimization process. The approach is demonstrated on a structural optimization problem, i.e., reducing the stress on a truss-like structure. Results show that the proposed algorithm consequently finds better optimums than traditional kriging-based infill optimization.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130063140","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: 21
An application of factorial design to compare the relative effectiveness of hospital infection control measures 应用析因设计比较医院感染控制措施的相对有效性
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147849
S. Barnes, E. Wasil, B. Golden, J. Furuno, A. Harris
{"title":"An application of factorial design to compare the relative effectiveness of hospital infection control measures","authors":"S. Barnes, E. Wasil, B. Golden, J. Furuno, A. Harris","doi":"10.1109/WSC.2011.6147849","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147849","url":null,"abstract":"Optimal methods to control patient-to-patient transmission of methicillin-resistant Staphylococcus aureus (MRSA) in an intensive care unit (ICU) setting are still unknown. We iteratively applied a full 2k factorial design on the output of a stochastic, agent-based simulation to compare the effects of the hand hygiene compliance of healthcare workers and the nurse-to-patient ratio on the transmission of MRSA in a 20-bed ICU. The results suggest that increasing the nurse-to-patient ratio is more effective at levels below approximately 60% compliance of nurses. However, improving the hand washing compliance of nurses becomes the better strategy at higher baseline compliance levels. In addition, interaction effects between the two infection control measures limit the marginal benefit of improving both factors to high levels.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128927323","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
Interaction-based HPC modeling of social, biological, and economic contagions over large networks 大型网络中基于交互的社会、生物和经济传染的高性能计算模型
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147996
K. Bisset, Jiangzhuo Chen, C. Kuhlman, V. S. A. Kumar, M. Marathe
{"title":"Interaction-based HPC modeling of social, biological, and economic contagions over large networks","authors":"K. Bisset, Jiangzhuo Chen, C. Kuhlman, V. S. A. Kumar, M. Marathe","doi":"10.1109/WSC.2011.6147996","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147996","url":null,"abstract":"Modeling large-scale stochastic systems of heterogeneous individuals and their interactions, where multiple behaviors and contagions co-evolve with multiple interaction networks, requires high performance computing and agent-based simulations. We present graph dynamical systems as a formalism to reason about network dynamics and list phenomena from several application domains that have been modeled as graph dynamical systems to demonstrate its wide-ranging applicability. We describe and contrast three tools developed in our laboratory that use this formalism to model these systems. Beyond evaluating system dynamics, we are interested in understanding how to control contagion processes using resources both endogenous and exogenous to the system being investigated to support public policy decision-making. We address control methods, such as interventions, and provide illustrative simulation results.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122012595","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
Symbiotic simulation for optimisation of tool operations in semiconductor manufacturing 半导体制造中刀具操作优化的共生模拟
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147922
Heiko Aydt, S. Turner, Wentong Cai, Boon-Ping Gan
{"title":"Symbiotic simulation for optimisation of tool operations in semiconductor manufacturing","authors":"Heiko Aydt, S. Turner, Wentong Cai, Boon-Ping Gan","doi":"10.1109/WSC.2011.6147922","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147922","url":null,"abstract":"A symbiotic simulation-based problem solver agent is proposed that can be used to automatically solve decision making problems regarding the operations of the various tools of an entire semiconductor manufacturing plant (fab). In comparison with common practice decision making, performed by human operators, the advantage of the symbiotic simulation-based approach is its ability to simulate how decisions will affect operations in different parts of the fab. Previous work has been concerned with the optimization of a single tool group. Here, we show that our approach can also be applied to control an entire fab which typically involves several hundred tools. Unlike other approaches, ours is not limited to a set of pre-defined decision making policies. Instead, the problem solver agent can directly schedule setup changes for an arbitrary number of tools. Experiments show that higher throughput can be achieved by using our approach as compared to common practice decision making.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122598263","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
A conceptual comparison between discrete and continuous simulation to motivate the hybrid simulation methodology 对离散仿真和连续仿真进行概念比较，以激励混合仿真方法
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6148082
T. B. Brito, E. Trevisan, R. Botter
{"title":"A conceptual comparison between discrete and continuous simulation to motivate the hybrid simulation methodology","authors":"T. B. Brito, E. Trevisan, R. Botter","doi":"10.1109/WSC.2011.6148082","DOIUrl":"https://doi.org/10.1109/WSC.2011.6148082","url":null,"abstract":"The aim of this essay is to encourage the application of the hybrid simulation, combining the discrete and the continuous simulation methodologies. With a conceptual literature review of discrete (Discrete Event) and the continuous (System Dynamics) simulation methodologies that reveals their main features and potential of applicability, it is possible to define the potential of developing hybrid simulation models. The integration of both methodologies in a single model allows the expansion of the comprehension spectrum of the system, with the possibility of integrating the physical and dimensional aspects to policy and behavior patterns, revealing the hybrid methodology as a powerful tool to succeed in the highly demanding business world.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122357151","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: 30
RSB Tool: A LCA Tool for the assessment of biofuels sustainability RSB工具:生物燃料可持续性评估的LCA工具
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147828
Jürgen Reinhard, M. F. Emmenegger, Andi H. Widok, Volker Wohlgemuth
{"title":"RSB Tool: A LCA Tool for the assessment of biofuels sustainability","authors":"Jürgen Reinhard, M. F. Emmenegger, Andi H. Widok, Volker Wohlgemuth","doi":"10.1109/WSC.2011.6147828","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147828","url":null,"abstract":"The paper focuses on the role of simulation within the RSB GHG Tool, which is a web-based decision support tool that assesses greenhouse gas emissions of biofuels according to the principles of the Roundtable on Sustainable Biofuels. Using a questionnaire, each operator can specify his individual data and calculate the GHG emission for his production step. To derive the environmental flows required for the impact assessment, the tool applies simulation, which allows generating a full inventory on the basis of the limited input data the operator can provide. This is the basis for the interactive assessment of the GHG emissions of individual steps of biofuels pathways, without the need of conducting a time and resource-intensive Life Cycle Assessment study. In this paper, we focus on the simulation for the emissions caused by land use change since such emissions can play a dominating role in the GHG balance of a biofuel.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126905871","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
The Backstroke framework for source level reverse computation applied to parallel discrete event simulation 源级反向计算的Backstroke框架在并行离散事件仿真中的应用
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147998
George Vulov, Cong Hou, R. Vuduc, R. Fujimoto, D. Quinlan, D. Jefferson
{"title":"The Backstroke framework for source level reverse computation applied to parallel discrete event simulation","authors":"George Vulov, Cong Hou, R. Vuduc, R. Fujimoto, D. Quinlan, D. Jefferson","doi":"10.1109/WSC.2011.6147998","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147998","url":null,"abstract":"We introduce Backstroke, a new open source framework for the automatic generation of reverse code for functions written in C++. Backstroke enables reverse computation for optimistic parallel discrete event simulations. It is built using the ROSE open-source compiler infrastructure, and handles complex C++ features including pointers and pointer types, arrays, function and method calls, class types, inheritance, polymorphism, virtual functions, abstract classes, templated classes and containers. Backstroke also introduces new program inversion techniques based on advanced compiler analysis tools built into ROSE. We explore and illustrate some of the complex language and semantic issues that arise in generating correct reverse code for C++ functions.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124147531","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: 27
Why doesn't healthcare embrace simulation and modeling? What would it take? 为什么医疗保健不接受模拟和建模?这需要付出什么代价?
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147836
J. Fackler, M. Spaeder
{"title":"Why doesn't healthcare embrace simulation and modeling? What would it take?","authors":"J. Fackler, M. Spaeder","doi":"10.1109/WSC.2011.6147836","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147836","url":null,"abstract":"Physicians do modeling - every day, all day. It's just that it's done with hideous imprecision making cross-patient conclusions hazardous and extensibility impossible. Most of these mental models are devoid of formal logic. Rather, these mental models are patterns matched in a specific patient with a specific problem(s) based on a clinician's experience and “book-knowledge”. We will explore some of the steps that could contribute to the broader acceptance of mathematical models in health care. We will distinguish models that impact the care of the individual patient from that of a larger population.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127707054","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
Simulation-based study of hematology outpatient clinics with focus on model reusability 基于仿真的血液学门诊研究，重点是模型的可重用性
Proceedings of the 2011 Winter Simulation Conference (WSC) Pub Date : 2011-12-11 DOI: 10.1109/WSC.2011.6147840
N. Mustafee, Michael D. Williams, F. Hughes, Korina Katsaliaki
{"title":"Simulation-based study of hematology outpatient clinics with focus on model reusability","authors":"N. Mustafee, Michael D. Williams, F. Hughes, Korina Katsaliaki","doi":"10.1109/WSC.2011.6147840","DOIUrl":"https://doi.org/10.1109/WSC.2011.6147840","url":null,"abstract":"Several factors are expected to significantly increase stakeholders' interest in healthcare simulation studies in the foreseeable future, e.g., the use of metrics for performance measurement, and increasing patients' expectations. To cater to this, several strategies may have to be implemented in concert, e.g., development of skilled manpower and engagement with academia. The focus of this paper is on one such strategy -model reusability. The paper reports on an ongoing study that investigates the outpatient capacity and demand for specialist hematology services. The primary objective of this study is to test strategies for service consolidation. Yet another objective is to model the simulation with the granularity that would enable the model to reused in similar operations context. The paper discusses the reusability aspect and presents an overview of the hematology OPD case study; since this is an ongoing study the results of the simulation are not presented in this paper.","PeriodicalId":246140,"journal":{"name":"Proceedings of the 2011 Winter Simulation Conference (WSC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127366479","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
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