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International Journal of Modeling and Optimization最新文献

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Research on the Value Chain as a Strategic Management Tool for the Digital Enterprise 价值链作为数字化企业战略管理工具的研究
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.788
S. Istriteanu, Bucharest Romania Measurement Technique Incdmtm, G. Gheorghe
{"title":"Research on the Value Chain as a Strategic Management Tool for the Digital Enterprise","authors":"S. Istriteanu, Bucharest Romania Measurement Technique Incdmtm, G. Gheorghe","doi":"10.7763/IJMO.2021.V11.788","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.788","url":null,"abstract":"","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124371603","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 and Analysis of Coal Mine Safety Escape Routes Based on a Multi-agent Model 基于多智能体模型的煤矿安全逃生路线仿真分析
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.785
Pan Lihu, Lu Feiping, Zhou Yaohui, Qin Shipeng
{"title":"Simulation and Analysis of Coal Mine Safety Escape Routes Based on a Multi-agent Model","authors":"Pan Lihu, Lu Feiping, Zhou Yaohui, Qin Shipeng","doi":"10.7763/IJMO.2021.V11.785","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.785","url":null,"abstract":"","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126560444","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
Adaptive Radial Basis Function Neural Network Controller for Autonomous Multirotors 自主多旋翼自适应径向基函数神经网络控制器
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.787
A. Banazadeh, Ardalan Samadzadeh
{"title":"Adaptive Radial Basis Function Neural Network Controller for Autonomous Multirotors","authors":"A. Banazadeh, Ardalan Samadzadeh","doi":"10.7763/IJMO.2021.V11.787","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.787","url":null,"abstract":"—Limits in the real-time computation of micro-processors on the one hand and high-level controllers that need precise computation in addition to implementation and compiling issues, on the other hand, have caused a great gap between control science and experiments. In this work, an adaptive RBF neural network controller is proposed to control the position and attitude of an autonomous multirotor. The controller is combined with an EKF observer and simulated in real-time flight conditions. In order to check the capabilities of the system, the proposed structure has been successfully applied to a quadrotor and a hexarotor using three data types for getting similar real-time flight results. Based on the results, the proposed structure has accomplished two separate missions with different scenarios, though there exists some error, especially in position estimations which are caused by step-wise characteristics of the desired path.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132696440","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
New approach for Secant Update generalized version of PSB 割线更新PSB广义版的新方法
International Journal of Modeling and Optimization Pub Date : 2021-11-01 DOI: 10.7763/IJMO.2021.V11.786
Nicolas Boutet, R. Haelterman, J. Degroote
{"title":"New approach for Secant Update generalized version of PSB","authors":"Nicolas Boutet, R. Haelterman, J. Degroote","doi":"10.7763/IJMO.2021.V11.786","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.786","url":null,"abstract":"Working with Quasi-Newton methods in optimization leads to one important challenge, being to find an estimate of the Hessian matrix as close as possible to the real matrix. While multisecant methods are regularly used to solve root finding problems, they have been little explored in optimization because the symmetry property of the Hessian matrix estimation is generally not compatible with the multisecant property. In this paper, we propose a solution to apply multisecant methods to optimization problems. Starting from the Powell-Symmetric-Broyden (PSB) update formula and adding pieces of information from the previous steps of the optimization path, we want to develop a new update formula for the estimate of the Hessian. A multisecant version of PSB is, however, generally mathematically impossible to build. For that reason, we provide a formula that satisfies the symmetry and is as close as possible to satisfy the multisecant condition and vice versa for a second formula. Subsequently, we add enforcement of the last secant equation to the symmetric formula and present a comparison between the different methods.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126271178","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
Modeling and Controlling the Cooling System of an IC Vehicle 集成电路车辆冷却系统的建模与控制
International Journal of Modeling and Optimization Pub Date : 2021-08-01 DOI: 10.7763/IJMO.2021.V11.782
C. Mureșan, G. Harja
{"title":"Modeling and Controlling the Cooling System of an IC Vehicle","authors":"C. Mureșan, G. Harja","doi":"10.7763/IJMO.2021.V11.782","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.782","url":null,"abstract":"The performance and efficiency of internal combustion (IC) engines can be greatly improved by using a high-performance cooling system. This can be achieved by implementing robust control strategies and, also by building the cooling system with high-performance elements. The mechanical execution elements can be replaced with electrically controllable elements such as the pump and the thermostat valve. This will have a positive influence on the degree of controllability of the system. In order to develop highperformance control algorithms, it is necessary to have a model that best reflects the behaviors of the physical system. Thus, this paper presents a mathematical modeling approach for the cooling system using the principles of heat exchangers and the physical phenomena present in them.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123826243","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
Analysis and Prediction of Trough Track Superelevation Based on Big Data 基于大数据的槽道超高程分析与预测
International Journal of Modeling and Optimization Pub Date : 2021-08-01 DOI: 10.7763/IJMO.2021.V11.781
Huang Jiabin, Zhichao He, Chen Li, Hongru Fan, Yi Yin, Xie Yongjun
{"title":"Analysis and Prediction of Trough Track Superelevation Based on Big Data","authors":"Huang Jiabin, Zhichao He, Chen Li, Hongru Fan, Yi Yin, Xie Yongjun","doi":"10.7763/IJMO.2021.V11.781","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.781","url":null,"abstract":"The detection of the safety status of urban rail transit is an important part of ensuring the operation of the rail. Using the data detected by the rail to analyze and predict the quality of the rail is very important for the research of rail inspection. Based on the existing research, this paper uses big data to analyze the collected superelevation data, and builds a trough-track superelevation big data prediction model based on the combination of the stochastic oscillation sequence gray model and ALO-Elman network to analyze the historical superelevation data and mine information about superelevation trends. In this paper, the average value of superelevation data of the equal-spaced groove track in a certain interval is collected for verification. The experimental results show that the method can reasonably predict the change trend of the ultra-elevation. The change trend is basically in line with the original data change trend, and the deviation is controlled to be small within range.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121907920","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
Research on the Technology of Mass Customization of Clothing 服装大规模定制技术研究
International Journal of Modeling and Optimization Pub Date : 2021-08-01 DOI: 10.7763/IJMO.2021.V11.783
Qianqian Sun, Xiaodong Sun
{"title":"Research on the Technology of Mass Customization of Clothing","authors":"Qianqian Sun, Xiaodong Sun","doi":"10.7763/IJMO.2021.V11.783","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.783","url":null,"abstract":"The COVID-19 pandemic challenged the garment industry dramatically which will accelerate the garment industry to turn to technology of mass customization for it offers digital online options. This paper reviews the mass customization technology of clothing from the aspects of intelligent pattern-making technology, virtual garment prototype technology and the evaluation of apparel fitness. By surveying the technologies in order to establish a ground true rules for the mass customization platform so that suitable for all clothing categories, and the pattern-making standards which could fit different body types. And finally, by experiments of different digital garment prototype on different body types to establish the rules for generating virtual prototype and evaluated fitness of virtual garment on different body types.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122770879","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
Web Application for Statistical Tracking and Predicting the Evolution of Active Cases with the Novel Coronavirus (SARS-CoV-2) 新型冠状病毒(SARS-CoV-2)活跃病例演变统计跟踪与预测Web应用
International Journal of Modeling and Optimization Pub Date : 2021-08-01 DOI: 10.7763/IJMO.2021.V11.780
I. Clitan, A. Puscasiu, V. Muresan, M. Ungureșan, M. Abrudean
{"title":"Web Application for Statistical Tracking and Predicting the Evolution of Active Cases with the Novel Coronavirus (SARS-CoV-2)","authors":"I. Clitan, A. Puscasiu, V. Muresan, M. Ungureșan, M. Abrudean","doi":"10.7763/IJMO.2021.V11.780","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.780","url":null,"abstract":"Since February 2020, when the first case of infection with SARS COV-2 virus appeared in Romania, the evolution of COVID-19 pandemic continues to have an ascending allure, reaching in September 2020 a second wave of infections as expected. In order to understand the evolution and spread of this disease over time and space, more and more research is focused on obtaining mathematical models that are able to predict the evolution of active cases based on different scenarios and taking into account the numerous inputs that influence the spread of this infection. This paper presents a web responsive application that allows the end user to analyze the evolution of the pandemic in Romania, graphically, and that incorporates, unlike other COVID-19 statistical applications, a prediction of active cases evolution. The prediction is based on a neural network mathematical model, described from the architectural point of view.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116827660","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 Branching Process Model for the Novel Coronavirus (Covid-19) Spread in Greece 新型冠状病毒(Covid-19)在希腊传播的分支过程模型
International Journal of Modeling and Optimization Pub Date : 2021-08-01 DOI: 10.7763/IJMO.2021.V11.779
Ioanna A. Mitrofani, V. Koutras
{"title":"A Branching Process Model for the Novel Coronavirus (Covid-19) Spread in Greece","authors":"Ioanna A. Mitrofani, V. Koutras","doi":"10.7763/IJMO.2021.V11.779","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.779","url":null,"abstract":"The novel coronavirus (covid-19) was initially identified at the end of 2019 and caused a global health care crisis. The increased transmissibility of the virus, that led to high mortality, raises the interest of scientists worldwide. Thus, various methods and models have been extensively discussed, so to study and control covid-19 transmission. Mathematical modeling constitutes an important tool to estimate key parameters of the transmission and predict the dynamic of the virus. More precisely, in the relevant literature, epidemiology is considered as a classical application area of branching processes, which are stochastic individual-based processes. In this paper, we develop a classical Galton-Watson branching process approach for the covid-19 spread in Greece at the early stage. This approach is structured in two parts, initial and latter transmission stages, so to provide a comprehensive view of the virus spread through basic and effective reproduction numbers respectively, along with the probability of an outbreak. Additionally, the effectiveness of control measures is discussed, based on a simple exponential smoothing model, which is used to build a non-mitigation scenario. Finally, our primary aim is to model all transmission stages through branching processes in order to analyze the first semiannual spread of the ongoing coronavirus pandemic in the region of Greece.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115338083","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
Continuously Variable Transmission Vehicle Modeling and Control Algorithm Considering Fuel Efficiency and Driveline Efficiency 考虑燃油效率和传动系统效率的无级变速器车辆建模与控制算法
International Journal of Modeling and Optimization Pub Date : 2021-05-01 DOI: 10.7763/IJMO.2021.V11.777
D. Cotoros, Brasov Romania Environment, A. Stanciu, Alexandra Hutini
{"title":"Continuously Variable Transmission Vehicle Modeling and Control Algorithm Considering Fuel Efficiency and Driveline Efficiency","authors":"D. Cotoros, Brasov Romania Environment, A. Stanciu, Alexandra Hutini","doi":"10.7763/IJMO.2021.V11.777","DOIUrl":"https://doi.org/10.7763/IJMO.2021.V11.777","url":null,"abstract":"The device presented in this paper was designed in order to give a hand to the deaf-mute community, by helping them to reintegrate in the society, using the modern technologies. We aim at manufacturing an intelligent glove based on the use of sensors in order to obtain a communication bridge with a decent speech level between the persons suffering hearing loss and the persons with normal hearing. The development and design of the glove represents an endeavor that aims at obtaining pertinent data from fingers’ motion. The prototype functionality can be easily compared with gloves for virtual applications as they work on the same principle, namely sensory activity and test subjects will verify the concept objectives.","PeriodicalId":134487,"journal":{"name":"International Journal of Modeling and Optimization","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130877790","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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