2010 Fourth UKSim European Symposium on Computer Modeling and Simulation最新文献

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Harvesting Consumer Opinion and Wine Knowledge Off the Social Media Grape Vine Utilizing Artificial Neural Networks 利用人工神经网络从社交媒体葡萄树上获取消费者意见和葡萄酒知识
2010 Fourth UKSim European Symposium on Computer Modeling and Simulation Pub Date : 2010-11-17 DOI: 10.1109/EMS.2010.109
W. Claster, Maxwell Caughron, P. Sallis
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引用次数: 6
Control of a Non Observable Double Inverted Pendulum Using a Novel Active Learning Method Based State Estimator 基于状态估计器的主动学习控制非观测双倒立摆
2010 Fourth UKSim European Symposium on Computer Modeling and Simulation Pub Date : 2010-11-17 DOI: 10.1109/EMS.2010.17
Alireza Samani, S. Shouraki, Reza Eghbali, M. Rostami
{"title":"Control of a Non Observable Double Inverted Pendulum Using a Novel Active Learning Method Based State Estimator","authors":"Alireza Samani, S. Shouraki, Reza Eghbali, M. Rostami","doi":"10.1109/EMS.2010.17","DOIUrl":"https://doi.org/10.1109/EMS.2010.17","url":null,"abstract":"In this paper a novel fuzzy approach exploiting Active Learning Method is employed in order to estimate the immeasurable states required to control a non-observable double inverted pendulum. Active Learning Method (ALM) is a fuzzy modeling method which exploits Ink Drop Spread (IDS) as its main engine. IDS is a universal fuzzy modeling technique which is very similar to the way human brain processes different phenomena. The ALM system is trained by the data obtained from Linear Quadratic Regulator (LQR) controller. LQR uses an optimal control approach which under certain conditions guarantees robustness. Instead of an expert’s knowledge, the LQR controller output is used as a priori knowledge to train ALM. The application of ALM method is then investigated in conditions where some states of system like the upper angle of the pendulum and its angular velocity are not available and the proposed system is not observable. The fact of practical non-observablity of this system obliges us to use an open-loop state estimator to estimate the missing states. Instead, a novel state estimator using ALM is introduced which shows practical superiority in estimation.","PeriodicalId":161746,"journal":{"name":"2010 Fourth UKSim European Symposium on Computer Modeling and Simulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130457376","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
E-Procurement as a Driver for Strategic Management: A Discrete-Event Model 电子采购作为战略管理的驱动因素:一个离散事件模型
2010 Fourth UKSim European Symposium on Computer Modeling and Simulation Pub Date : 2010-11-17 DOI: 10.1109/EMS.2010.39
M. Remondino, V. Cantino, M. Pironti
{"title":"E-Procurement as a Driver for Strategic Management: A Discrete-Event Model","authors":"M. Remondino, V. Cantino, M. Pironti","doi":"10.1109/EMS.2010.39","DOIUrl":"https://doi.org/10.1109/EMS.2010.39","url":null,"abstract":"The goal of this work is to evaluate, by means of discrete event based simulation, the impact associated with the adoption of e-Procurement tools across Public Administration. The simulation model presented here involves both traditional and electronic procurement forms. The comparison between the two approaches will point out the benefits of e-Procurement in terms of labor costs, length of time and number of employers required. The process representation model can also be used to carry on what-if analysis, in order to detect critical points and simulate alternative scenarios.","PeriodicalId":161746,"journal":{"name":"2010 Fourth UKSim European Symposium on Computer Modeling and Simulation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129213429","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
Analysis and Simulation for a Mean Response Time Hybrid Solution to Homogeneous Fork/Join Queues 同构Fork/Join队列平均响应时间混合解的分析与仿真
2010 Fourth UKSim European Symposium on Computer Modeling and Simulation Pub Date : 2010-11-17 DOI: 10.1109/EMS.2010.59
R. Chen, Muchenxuan Tong
{"title":"Analysis and Simulation for a Mean Response Time Hybrid Solution to Homogeneous Fork/Join Queues","authors":"R. Chen, Muchenxuan Tong","doi":"10.1109/EMS.2010.59","DOIUrl":"https://doi.org/10.1109/EMS.2010.59","url":null,"abstract":"In this paper, we simulate and analyze general K-queue HFJ (Homogeneous Fork/Join) systems with 100-thousand parallel queues for the mean response time, which we denote by T[K]. Jobs arrive with mean rate lambda and a general arrival distribution. Upon arrival, a job forks into K tasks. Task k, k = 1, 2, K, is assigned to the kth queuing system, which is a first-in-first-out server with a general service distribution and an infinite capacity queue. A job leaves the HFJ system as soon as all its tasks complete their service. In other words, tasks corresponding to the same job are joined before departing the HFJ system. We use the huge-scale simulation to analyze the tightness and the trend of a mean response time hybrid solution [1] as K grows. The hybrid solution is consistent for huge-scale systems with max absolute offset.","PeriodicalId":161746,"journal":{"name":"2010 Fourth UKSim European Symposium on Computer Modeling and Simulation","volume":"354 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121625674","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 Technique for Available Bandwidth Estimation 可用带宽估计的仿真技术
2010 Fourth UKSim European Symposium on Computer Modeling and Simulation Pub Date : 2010-07-19 DOI: 10.1109/EMS.2010.88
T. Sultanov, A. Sukhov
{"title":"Simulation Technique for Available Bandwidth Estimation","authors":"T. Sultanov, A. Sukhov","doi":"10.1109/EMS.2010.88","DOIUrl":"https://doi.org/10.1109/EMS.2010.88","url":null,"abstract":"This paper proposes a method for measuring the available bandwidth, based on testing network packets of various sizes (variable packet size method, VPS). The range of applicability of the model has been found, it is based on the accuracy of the measurements of packet delays. We have also derived a formula for the upper limit of the bandwidth. Computer simulations have been performed and the relationship between the measurement error of the available bandwidth and the number of measurements has been found. Experimental verification with the use of the RIPE test box measuring system has shown that this method has advantages over existing measurement techniques. The Path load utility has been chosen as an alternative technique of measurement, and to ensure that reliable result statistics have been withdrawn by the SNMP agent directly from the router.","PeriodicalId":161746,"journal":{"name":"2010 Fourth UKSim European Symposium on Computer Modeling and Simulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124332519","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: 8
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