2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim)最新文献

Maximizing System Capacity Using Adaptive Coding and Modulation Techniques for Slowly Fading Channels 利用自适应编码和调制技术实现慢衰落信道的系统容量最大化

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.45

Faisal M. Alawwad, Y. A. Al-Zahrani, H. Behairy

引用次数: 1

Modal Analysis: A Comparison between Finite Element Analysis (FEA) and Practical Laser Doppler Vibrometer (LDV) Testing 模态分析:有限元分析(FEA)与实用激光多普勒测振仪(LDV)测试的比较

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.27

L. Pagan, Kelvin Lake

{"title":"Modal Analysis: A Comparison between Finite Element Analysis (FEA) and Practical Laser Doppler Vibrometer (LDV) Testing","authors":"L. Pagan, Kelvin Lake","doi":"10.1109/UKSim.2017.27","DOIUrl":"https://doi.org/10.1109/UKSim.2017.27","url":null,"abstract":"Abstract — Natural frequencies and modal shapes simulated in FE (Finite Element) environments are not simple to validate with physical testing or calculous, especially when relating to complex shaped components. In this paper a Laser Doppler Vibrometer (LDV) system is utilized as an aid in validating the natural frequencies, modes and mode shapes computed from an FEA model of a motorcycle swing arm. The experimental errors observed help to illustrate the difficulty of replicating the correct boundary conditions when dealing with this sort of analysis, due to the fact that the FEA environment is usually ideal. In this case the analyzed component was supported with a very basic set-up; however, slight changes in test configurations and repeat multiple tests assisted in reducing experimental errors ensuring continuity in measurements and the exclusion of non-coherent values which were not relevant. A constant reference surface of the component was used in order to visualize the LDV computed modal shapes, even though the excitation point of the component was varied. This last combination was fundamental for validation.","PeriodicalId":309250,"journal":{"name":"2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123875745","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

Enhancing Biometric Liveness Detection Using Trait Randomization Technique 利用特征随机化技术增强生物特征活力检测

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.44

Kenneth Okereafor, C. Onime, O. Osuagwu

{"title":"Enhancing Biometric Liveness Detection Using Trait Randomization Technique","authors":"Kenneth Okereafor, C. Onime, O. Osuagwu","doi":"10.1109/UKSim.2017.44","DOIUrl":"https://doi.org/10.1109/UKSim.2017.44","url":null,"abstract":"Biometric Authentication Systems (BAS) have several security benefits over traditional password and token authentication including an inherent difficulty to copy, clone and share or distribute authentication credentials (biometric traits). Spoofing or presentation attack remains a major weakness of biometric systems and tackling it at the trait level is still challenging with several different approaches and methods applied in existing systems. In this paper, we focus on the well-known approach of Suspicious Presentation Detection (SPD) and present the Multi-Modal Random Trait Biometric Liveness Detection System (MMRTBLDS) that further mitigates spoofing or presentations attacks using randomization and combination of several different SPD detection techniques across three different modalities during trait capture. We discuss the detection of life using five distinct properties each from finger, face and eye modalities and present results from a simulation that highlights the improved security based on an impostor’s inability to accurately predict the combination of trait liveness properties the system might prompt and test for during capture.","PeriodicalId":309250,"journal":{"name":"2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127381162","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: 13

Thermal Infrared Face Recognition: A Review 热红外人脸识别技术综述

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.38

K. Kakkirala, S. Chalamala, Santosh Kumar Jami

引用次数: 15

Modeling Isolated Traffic Control Strategies in TraffSim 基于TraffSim的孤立交通控制策略建模

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.12

Manuel Lindorfer, Christian Backfrieder, C. Mecklenbräuker, G. Ostermayer

{"title":"Modeling Isolated Traffic Control Strategies in TraffSim","authors":"Manuel Lindorfer, Christian Backfrieder, C. Mecklenbräuker, G. Ostermayer","doi":"10.1109/UKSim.2017.12","DOIUrl":"https://doi.org/10.1109/UKSim.2017.12","url":null,"abstract":"Traffic signal controls have become an integral part of urban traffic management and operations and play a crucial role in both mitigating congestion and reducing or eliminating conflicts at intersections. Starting with the installation of the first traffic signal in London, England in the nineteenth century, signal control technology has evolved steadily. Nowadays, traffic signal controls are not only used to provide the right-of-way at intersections, but also to improve traffic efficiency by means of minimizing waiting times and optimizing traffic flow. In this paper we present recent efforts to introduce different types of traffic signal control for isolated intersections into the microscopic traffic simulator TraffSim. The developed traffic control model supports both time-based and actuated control strategies, and allows for a straightforward configuration of customized control logic. Furthermore, it provides the possibility to easily add new control strategies on demand, owing to a flexible data model. We demonstrate the applicability of selected control strategies by simulating a signalized four-way intersection under varying traffic flows.","PeriodicalId":309250,"journal":{"name":"2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122098631","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 New Approach to Generation and Analysis of Gradient Methods Based on Relaxation Function 基于松弛函数的梯度法生成与分析新方法

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.14

Igor Chernorutskiy, P. Drobintsev, V. Kotlyarov, Nikita Voinov

{"title":"A New Approach to Generation and Analysis of Gradient Methods Based on Relaxation Function","authors":"Igor Chernorutskiy, P. Drobintsev, V. Kotlyarov, Nikita Voinov","doi":"10.1109/UKSim.2017.14","DOIUrl":"https://doi.org/10.1109/UKSim.2017.14","url":null,"abstract":"The goal of this article is to inform English-speaking computer mathematicians about some optimization technique results obtained in publications [1-3]. For the class of matrix gradient methods a new concept of relaxation function is suggested. This concept allows to evaluate an effectiveness of each gradient optimization procedure, and to synthesize new methods for special classes of non-convex optimization problems. According to suggested approach, it is possible to build relevant gradient method for any given relaxation function. The theorem of relaxation conditions for each matrix gradient method is proven. Based on the concept of relaxation functions it is given geometric interpretation of relaxation properties of gradient methods. According to this interpretation it is possible to build a relaxation area, and to evaluate the speed of objective function values decreasing. The analysis of classical matrix gradient schemes such as simple gradient method, Newton's methods, Levenberg-Marquardt method is given. It is shown that relaxation function and its geometric interpretation give almost full information about properties and capabilities of relevant gradient optimization methods.","PeriodicalId":309250,"journal":{"name":"2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128307265","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

Calibration of the Gordon-Loeb Models for the Probability of Security Breaches 安全漏洞概率的Gordon-Loeb模型的校正

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.18

M. Naldi, M. Flamini

引用次数: 7

Adaptive Preemption of Traffic for Emergency Vehicles 应急车辆交通自适应抢占

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.34

V. Paruchuri

引用次数: 8

An Optical Hard-Limiter for All-Optical Signal Processing 用于全光信号处理的光硬限幅器

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.29

S. Abdollahi, H. Al-Raweshidy, T. Owens, A. Ahmadinia

引用次数: 2

Prototype Wireless Controller System Based on Raspberry Pi and Arduino for Engraving Machine 基于树莓派和Arduino的雕刻机无线控制器原型系统

2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim) Pub Date : 2017-04-05 DOI: 10.1109/UKSim.2017.20

Saif Aldeen Saad Obayes, Ibtesam R. K. Al-Saedi, F. Mohammed

引用次数: 14