Pub Date : 2023-11-22DOI: 10.1080/17477778.2023.2284143
Mariana Bergonzi, Joaquín Fernández, Rodrigo Castro, A. Muzy, E. Kofman
{"title":"Quantization-based simulation of spiking neurons: theoretical properties and performance analysis","authors":"Mariana Bergonzi, Joaquín Fernández, Rodrigo Castro, A. Muzy, E. Kofman","doi":"10.1080/17477778.2023.2284143","DOIUrl":"https://doi.org/10.1080/17477778.2023.2284143","url":null,"abstract":"","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139248204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-24DOI: 10.1080/17477778.2023.2272967
Dávid Lajos Sárdi, György Lipovszki, Krisztián Bóna
ABSTRACTNowadays, city logistics issues are getting more and more attention. Within this, our City Logistics Research Group is currently focusing on the urban concentrated sets of delivery locations. MS Excel- and AnyLogic-based simulation models were developed in the last years to analyze them, but still, problems were encountered above a certain model size in both cases. For this reason, we started looking for a new tool that is flexible, fast, and available for everyone. The use of Python Programming Language was selected, with the primary goal of eliminating the previous technical problems and obtaining detailed information about the examined processes. In this paper, we are going to present the problems of the previous models, the development, operation, and main advantages of the new, Python-based DES model, the design and parameterization of the pilot models, the results of the tests, and the next steps of the research.KEYWORDS: City logisticsshopping mallsimulationPythonLabVIEWDES Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"Application of microscopic discrete event-based simulation in the modelling of the city logistics systems of concentrated sets of delivery locations","authors":"Dávid Lajos Sárdi, György Lipovszki, Krisztián Bóna","doi":"10.1080/17477778.2023.2272967","DOIUrl":"https://doi.org/10.1080/17477778.2023.2272967","url":null,"abstract":"ABSTRACTNowadays, city logistics issues are getting more and more attention. Within this, our City Logistics Research Group is currently focusing on the urban concentrated sets of delivery locations. MS Excel- and AnyLogic-based simulation models were developed in the last years to analyze them, but still, problems were encountered above a certain model size in both cases. For this reason, we started looking for a new tool that is flexible, fast, and available for everyone. The use of Python Programming Language was selected, with the primary goal of eliminating the previous technical problems and obtaining detailed information about the examined processes. In this paper, we are going to present the problems of the previous models, the development, operation, and main advantages of the new, Python-based DES model, the design and parameterization of the pilot models, the results of the tests, and the next steps of the research.KEYWORDS: City logisticsshopping mallsimulationPythonLabVIEWDES Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135266160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-12DOI: 10.1080/17477778.2023.2265872
Bruno St-Aubin, G. A. Wainer
ABSTRACTSimulation visualisation is an effective way of understanding and communicating complex systems and processes. Among other advantages, it increases model transparency and intelligibility for all categories of users including non-experts, and it can be used by modellers as a tool to debug models in development. However, simulation visualisation is often tightly coupled to specific simulators, and, therefore, there is no way to reuse visualisation tools efficiently. Here, we present a specification that can be used to decouple visualisation engines from simulators. The specification also considers storage optimisation to support web-based simulation applications. We also present an implementation that supports the web-based representation and animation of outputs issued from simulators based on the discrete event system specification (DEVS) and Petri Nets.KEYWORDS: Decoupled visualisationvisualisation interoperabilitysimulation environment AcknowledgmentsThe authors would like to acknowledge Compute Canada for providing access to their Arbutus cloud-based infrastructure that allowed us to develop and test an implementation of the work we presented. The research was partially funded by NSERC.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the NSERC - Canada.
{"title":"Decoupling visualisation for better DEVS-based simulation applications","authors":"Bruno St-Aubin, G. A. Wainer","doi":"10.1080/17477778.2023.2265872","DOIUrl":"https://doi.org/10.1080/17477778.2023.2265872","url":null,"abstract":"ABSTRACTSimulation visualisation is an effective way of understanding and communicating complex systems and processes. Among other advantages, it increases model transparency and intelligibility for all categories of users including non-experts, and it can be used by modellers as a tool to debug models in development. However, simulation visualisation is often tightly coupled to specific simulators, and, therefore, there is no way to reuse visualisation tools efficiently. Here, we present a specification that can be used to decouple visualisation engines from simulators. The specification also considers storage optimisation to support web-based simulation applications. We also present an implementation that supports the web-based representation and animation of outputs issued from simulators based on the discrete event system specification (DEVS) and Petri Nets.KEYWORDS: Decoupled visualisationvisualisation interoperabilitysimulation environment AcknowledgmentsThe authors would like to acknowledge Compute Canada for providing access to their Arbutus cloud-based infrastructure that allowed us to develop and test an implementation of the work we presented. The research was partially funded by NSERC.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the NSERC - Canada.","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136013301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.1080/17477778.2023.2264236
Tessa Sarnow, Ralf Elbert
ABSTRACTRobust solutions are needed in the context of warehouse planning in contract logistics. To achieve this goal, knowledge about dominant factors is a prerequisite and thus presents the aim of this research. The factors to be evaluated are identified through a literature analysis, which leads to more than 40 factors from over 30 sources. To explore a broad range of factors, including their interaction, a design of experiments approach is used in a generic simulation model applied in a multiple-case study. The results indicate the overall dominance of demand-related factors and also the high importance of the equipment specifications across cases. Consequently, managerial insights include a shift of planning resources towards these most dominant factors. Based on the research results, the focus should be on a thorough analysis of the demand structure and the characteristics of the technical equipment. Also, when employing simulation models for the planning of order picking systems, it is strongly advised to use a parameter variation which draws a multifaceted picture of the situation in order to enable a justified decision. Implications for warehouse research are the consideration of variable input, especially regarding demand characteristics, to create relevant order picking scenarios when testing the optimisation potential of new developments.KEYWORDS: Design of experimentssimulationlogisticsrobustnesscase studyliterature analysis Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"Dominant factors in the simulation-based development of warehousing services","authors":"Tessa Sarnow, Ralf Elbert","doi":"10.1080/17477778.2023.2264236","DOIUrl":"https://doi.org/10.1080/17477778.2023.2264236","url":null,"abstract":"ABSTRACTRobust solutions are needed in the context of warehouse planning in contract logistics. To achieve this goal, knowledge about dominant factors is a prerequisite and thus presents the aim of this research. The factors to be evaluated are identified through a literature analysis, which leads to more than 40 factors from over 30 sources. To explore a broad range of factors, including their interaction, a design of experiments approach is used in a generic simulation model applied in a multiple-case study. The results indicate the overall dominance of demand-related factors and also the high importance of the equipment specifications across cases. Consequently, managerial insights include a shift of planning resources towards these most dominant factors. Based on the research results, the focus should be on a thorough analysis of the demand structure and the characteristics of the technical equipment. Also, when employing simulation models for the planning of order picking systems, it is strongly advised to use a parameter variation which draws a multifaceted picture of the situation in order to enable a justified decision. Implications for warehouse research are the consideration of variable input, especially regarding demand characteristics, to create relevant order picking scenarios when testing the optimisation potential of new developments.KEYWORDS: Design of experimentssimulationlogisticsrobustnesscase studyliterature analysis Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135590379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.1080/17477778.2023.2260772
Thomas Monks, Alison Harper
Discrete-event simulation (DES) is a widely used computational method in health services and health economic studies. This scoping review investigates to what extent authors share DES models and audits if sharing adheres to best practice. The Web of Science, Scopus, PubMed, and ACM Digital Library databases were searched between January 1 2019 till December 31 2022. Cost-effectiveness, health service research and methodology studies in a health context were included. Data extraction and audit were performed by two reviewers. We measured the proportion of literature that shared models; we report analyses by publication type, year of publication, COVID-19 application; and free and open source versus commercial software. Out of the 564 studies included, 47 (8.3%) cited a published computer model, rising to 9.0% in 2022. Studies were more likely to share models if they had been developed using free and open source tools. Studies rarely followed best practice when sharing computer models. Although still in the minority, healthcare DES authors are increasingly sharing their computer model artefacts. Although commercial software dominates the DES literature, free and open source software plays a crucial role in sharing. The DES community can adopt simple best practices to improve the quality of sharing.
离散事件模拟(DES)是一种广泛应用于卫生服务和卫生经济研究的计算方法。这个范围审查调查了作者在多大程度上共享DES模型，并审计共享是否符合最佳实践。在2019年1月1日至2022年12月31日期间检索了Web of Science、Scopus、PubMed和ACM数字图书馆数据库。其中包括保健方面的成本效益、保健服务研究和方法研究。数据提取和审核由两名审稿人完成。我们测量了共享模型的文献的比例;我们按出版类型、出版年份、COVID-19应用报告分析;免费和开源软件与商业软件的对比。在纳入的564项研究中，47项(8.3%)引用了已发表的计算机模型，到2022年这一比例将上升至9.0%。如果研究是使用免费和开源工具开发的，那么它们更有可能共享模型。在共享计算机模型时，研究很少遵循最佳实践。尽管仍占少数，但医疗保健DES的作者正在越来越多地分享他们的计算机模型人工制品。尽管商业软件在DES文献中占主导地位，但免费和开源软件在共享中起着至关重要的作用。DES社区可以采用简单的最佳实践来提高共享的质量。
{"title":"Computer model and code sharing practices in healthcare discrete-event simulation: a systematic scoping review","authors":"Thomas Monks, Alison Harper","doi":"10.1080/17477778.2023.2260772","DOIUrl":"https://doi.org/10.1080/17477778.2023.2260772","url":null,"abstract":"Discrete-event simulation (DES) is a widely used computational method in health services and health economic studies. This scoping review investigates to what extent authors share DES models and audits if sharing adheres to best practice. The Web of Science, Scopus, PubMed, and ACM Digital Library databases were searched between January 1 2019 till December 31 2022. Cost-effectiveness, health service research and methodology studies in a health context were included. Data extraction and audit were performed by two reviewers. We measured the proportion of literature that shared models; we report analyses by publication type, year of publication, COVID-19 application; and free and open source versus commercial software. Out of the 564 studies included, 47 (8.3%) cited a published computer model, rising to 9.0% in 2022. Studies were more likely to share models if they had been developed using free and open source tools. Studies rarely followed best practice when sharing computer models. Although still in the minority, healthcare DES authors are increasingly sharing their computer model artefacts. Although commercial software dominates the DES literature, free and open source software plays a crucial role in sharing. The DES community can adopt simple best practices to improve the quality of sharing.","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136279458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-20DOI: 10.1080/17477778.2023.2260348
Ludovica Adacher, Marta Flamini, Maurizio Naldi
ABSTRACTThe insurgence of the COVID-19 pandemic has compelled many countries to set up vaccination clinics to carry out mass vaccination campaigns. Though sizing a clinic impacts both costs and service quality, and costs must be scaled up nationwide, those clinics and their staffing have often been put into service without a proper design phase. In this paper, we propose a simulator that allows us to analyse a vaccination clinic’s performance and optimise its capacity and staff level, considering typical schedule-based operations. Though a trade-off is unavoidable between cost and service quality, the latter being represented by the throughput time, we show that we can achieve a significant increase in the efficient use of nurses’ time with a small sacrifice in service quality, i.e., a small increase of the throughput time.KEYWORDS: Vaccinationpandemicsdecision support systemshealth managementvaccination clinicsCOVID-19 Disclosure statementNo potential conflict of interest was reported by the authors.Notes1. www.cdc.gov/vaccines/covid-19/info-by-product/clinical-considerations2. The data of the U.S. Bureau of Labor Statistic concerning registered nurses can be retrieved on the page www.bls.gov/ooh/healthcare/registered-nurses.htm, which we consulted on Oct 22, 2021
{"title":"Simulation of a schedule-based mass vaccination clinic","authors":"Ludovica Adacher, Marta Flamini, Maurizio Naldi","doi":"10.1080/17477778.2023.2260348","DOIUrl":"https://doi.org/10.1080/17477778.2023.2260348","url":null,"abstract":"ABSTRACTThe insurgence of the COVID-19 pandemic has compelled many countries to set up vaccination clinics to carry out mass vaccination campaigns. Though sizing a clinic impacts both costs and service quality, and costs must be scaled up nationwide, those clinics and their staffing have often been put into service without a proper design phase. In this paper, we propose a simulator that allows us to analyse a vaccination clinic’s performance and optimise its capacity and staff level, considering typical schedule-based operations. Though a trade-off is unavoidable between cost and service quality, the latter being represented by the throughput time, we show that we can achieve a significant increase in the efficient use of nurses’ time with a small sacrifice in service quality, i.e., a small increase of the throughput time.KEYWORDS: Vaccinationpandemicsdecision support systemshealth managementvaccination clinicsCOVID-19 Disclosure statementNo potential conflict of interest was reported by the authors.Notes1. www.cdc.gov/vaccines/covid-19/info-by-product/clinical-considerations2. The data of the U.S. Bureau of Labor Statistic concerning registered nurses can be retrieved on the page www.bls.gov/ooh/healthcare/registered-nurses.htm, which we consulted on Oct 22, 2021","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136373965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-03DOI: 10.1080/17477778.2023.2236975
Antuela A. Tako, Anastasia Anagnostou, M. Fakhimi
{"title":"Editorial: 10th Anniversary post-simulation workshop 2021 special issue","authors":"Antuela A. Tako, Anastasia Anagnostou, M. Fakhimi","doi":"10.1080/17477778.2023.2236975","DOIUrl":"https://doi.org/10.1080/17477778.2023.2236975","url":null,"abstract":"","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139343077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-25DOI: 10.1080/17477778.2023.2230952
F. J. Barros
{"title":"The unified process interaction worldview","authors":"F. J. Barros","doi":"10.1080/17477778.2023.2230952","DOIUrl":"https://doi.org/10.1080/17477778.2023.2230952","url":null,"abstract":"","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42515278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-25DOI: 10.1080/17477778.2023.2236990
L. Cannavacciuolo, C. Ponsiglione, S. Primario, I. Quinto, G. Zollo
{"title":"Can agent-based modelling support organizational design in a complex environment? The proposal of a computational laboratory","authors":"L. Cannavacciuolo, C. Ponsiglione, S. Primario, I. Quinto, G. Zollo","doi":"10.1080/17477778.2023.2236990","DOIUrl":"https://doi.org/10.1080/17477778.2023.2236990","url":null,"abstract":"","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48761260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-13DOI: 10.1080/17477778.2023.2232768
Gary Linnéusson, A. G. Uriarte
ABSTRACT This paper presents results from a simulation case study analyzing care strategies for elderly patients in a regional healthcare system (HCS) in Sweden. Three strategies to reduce emergency visits, hospitalisations, and stays were evaluated: care coordinators at emergency departments, mobile health clinics visiting fragile patients in their homes, and proactive primary care. Using system dynamics modelling and empirical data, the impact on the regional HCS was explored considering the reduced care demand and demographic changes. Subsequently, the impact on the population's health status was assessed. Combining strategies yielded the best outcome, but improving patients' health status may increase long-term care demand. The study emphasizes the importance of implementing these strategies to offer better care for elderly patients and reduce healthcare costs. Findings highlight the potential long-term effects of improving health status and the need for a comprehensive approach to address the evolving care demands of an ageing population.
{"title":"Learning from simulating with system dynamics in healthcare: evaluating closer care strategies for elderly patients","authors":"Gary Linnéusson, A. G. Uriarte","doi":"10.1080/17477778.2023.2232768","DOIUrl":"https://doi.org/10.1080/17477778.2023.2232768","url":null,"abstract":"ABSTRACT This paper presents results from a simulation case study analyzing care strategies for elderly patients in a regional healthcare system (HCS) in Sweden. Three strategies to reduce emergency visits, hospitalisations, and stays were evaluated: care coordinators at emergency departments, mobile health clinics visiting fragile patients in their homes, and proactive primary care. Using system dynamics modelling and empirical data, the impact on the regional HCS was explored considering the reduced care demand and demographic changes. Subsequently, the impact on the population's health status was assessed. Combining strategies yielded the best outcome, but improving patients' health status may increase long-term care demand. The study emphasizes the importance of implementing these strategies to offer better care for elderly patients and reduce healthcare costs. Findings highlight the potential long-term effects of improving health status and the need for a comprehensive approach to address the evolving care demands of an ageing population.","PeriodicalId":51296,"journal":{"name":"Journal of Simulation","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46149082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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