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2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)最新文献

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Design, Simulation and Parametric Optimization of MEMS Based Varactor 基于MEMS的变容管设计、仿真及参数优化
S. Shaheen, M. M. Saleem, S. M. H. Zaidi, Ayesha Akhtar
This paper presents design, modeling and parametric optimization of RF MEMS varactor with large tuning range using electrostatic actuation. Optimized result is obtained using finite element method (FEM) and HFSS simulation to obtain large tuning ratio. Electrostatic torsion actuator is used in this model for actuation. The actuator beam transform the closing gap of torsion actuator into the movement of capacitor plate in the upward direction. The proposed design is optimized on the basis of electrode length ratio, levering ratio, gap between the plates. The design is demonstrated on 50 Ω coplanar transmission line for frequency range ofl-10 GHz, and optimized scattering parameters are achieved for both the actuated and un-actuated state. RF characteristics has been improved at electrode length ratio of 0.4404. Best performance is achieved at 5.5GHz with tunability of 157 % for Electrode length ratio of 0.4404.
本文介绍了采用静电驱动的大调谐范围射频MEMS变容管的设计、建模和参数优化。通过有限元法和HFSS仿真得到优化结果,获得了较大的调谐比。该模型采用静电扭转作动器作动。执行器梁将扭转执行器的闭合间隙转化为电容板向上的运动。根据电极长度比、杠杆比、极板间隙对设计进行了优化。该设计在50 Ω共面传输线上进行了验证,频率范围为l-10 GHz,得到了驱动和非驱动状态下的最佳散射参数。当电极长度比为0.4404时,射频特性得到改善。当电极长度比为0.4404时,在5.5GHz频段性能最佳,可调性为157%。
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引用次数: 0
A Context-Driven Complex Activity Framework for Smart Home 智能家居环境驱动的复杂活动框架
Nirmalya Thakur, C. Han
Internet of Things (IoT) will provide a data rich world to afford smart systems which, in a context of a smart home, will have to adapt to people according to their needs for work and living. This paper describes the work to establish a framework for building a database to capture all possible user interactions associated with a given activity and lists the conditions for these user interactions leading to the activity goal. As an application of this framework, an activity performance-based supervised recommender system to recommend tasks related to different activities in a smart home is presented. Its usefulness to enhance the quality of life of people in technology-laden surroundings can be seen, especially for the elderly people, by providing environments with smart agents, that can effectively assist them in user interactions, as well as recommend tasks or activities, or even guide them through the intended tasks. Furthermore, the future intelligent assistant agents will have to learn a universal set of user interactions related to any activity to effectively mitigate distractions and adapt to the situations and recommend tasks to aid users in reaching to the end goal of performing the desired activity. A preliminary result demonstrates a performance accuracy of 75% when evaluated on a subset of the UK DALE dataset [1].
物联网(IoT)将为智能系统提供一个数据丰富的世界,在智能家居的背景下,智能系统将不得不根据人们的工作和生活需求进行调整。本文描述了建立一个框架的工作,该框架用于构建一个数据库,以捕获与给定活动相关的所有可能的用户交互,并列出了这些用户交互导致活动目标的条件。作为该框架的应用,提出了一种基于活动性能的监督推荐系统,以推荐智能家居中与不同活动相关的任务。通过为环境提供智能代理,它可以有效地帮助他们进行用户交互,以及推荐任务或活动,甚至指导他们完成预期的任务,从而提高人们在充满技术的环境中的生活质量,特别是对老年人来说。此外,未来的智能助理代理将必须学习一套与任何活动相关的通用用户交互,以有效地减少干扰,适应情况,并推荐任务,以帮助用户达到执行所需活动的最终目标。初步结果表明,在英国DALE数据集[1]的一个子集上进行评估时,性能准确性为75%。
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引用次数: 14
Physical activity classification and assessment using smartphone 利用智能手机进行体育活动分类和评估
Rami Yared, Michaeli Ekubay Negassi, Lucy Yang
Physical activity is a very important indicator of healthy lifestyle. Physical activity recognition, classification and evaluation is a significant research area, both in academic as well as in healthcare domain to help patients achieving the benefits of performing physical activities. Physical activity recognition and evaluation enable professionals to make appropriate decisions and interventions, and patients can manage their activities of daily living independently. We present in this paper our smart-phone based system to recognize, classify and evaluate jogging, walking, and standing activities using the GPS and the accelerometer built-in smartphone sensors. Our system notifies caregivers and patients if the level of physical activities of patients falls below a certain threshold.
体育活动是健康生活方式的一个非常重要的指标。体育活动的识别、分类和评估是一个重要的研究领域,无论是在学术领域还是在医疗保健领域,以帮助患者实现进行体育活动的好处。身体活动识别和评估使专业人员能够做出适当的决策和干预,患者可以独立管理他们的日常生活活动。我们在本文中介绍了基于智能手机的系统,该系统使用GPS和内置智能手机传感器的加速度计来识别、分类和评估慢跑、步行和站立活动。如果患者的身体活动水平低于某一阈值,我们的系统会通知护理人员和患者。
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引用次数: 1
An Initial Scale-Factor Linear Polynomial Regression Model Approach for Hardware Performance on an HPC Compute-Node 高性能计算节点硬件性能的初始尺度因子线性多项式回归模型方法
David Johnson, Damian Valles
High-Performance Computing (HPC) relies heavily on the overall performance and capabilities of the system used to implement it. The purpose of this research is to perform several benchmarks on Texas State University's LEAP Cluster and analyze the data collected from those tests to determine performance models. The tests used to collect this data will be various benchmarking programs such as High-Performance Linpack (HPL), IOZone, and CacheBench. Analysis of the performance evaluation for each benchmark was modeled with a scaled second-order linear polynomial regression and used to observe the performance when the workload was changed. Once the analysis was completed, the models were compared to the data obtained from the benchmark runs on the specific hardware devices. The models showed that scaling coefficients help to describe the performance of each hardware model. The work-in-progress is to continue to find scalable regression approaches that can improve the performance modeling fit.
高性能计算(HPC)在很大程度上依赖于用于实现它的系统的整体性能和能力。本研究的目的是在Texas State University的LEAP Cluster上执行几个基准测试,并分析从这些测试中收集的数据,以确定性能模型。用于收集这些数据的测试将是各种基准测试程序,如高性能Linpack (HPL)、IOZone和CacheBench。对每个基准的性能评估分析采用缩放二阶线性多项式回归建模,用于观察工作负载变化时的性能。分析完成后,将模型与在特定硬件设备上运行基准测试获得的数据进行比较。模型表明,比例系数有助于描述每个硬件模型的性能。正在进行的工作是继续寻找可伸缩的回归方法,以改进性能建模的适合性。
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引用次数: 1
A Comparison Between Generalization Capability of Neural Network and Neuro-Fuzzy System in Nonlinear Dynamics Identification of Impaired Aircraft 神经网络与神经模糊系统在损伤飞机非线性动力学辨识中的泛化能力比较
R. Norouzi, A. Kosari, M. Sabour
In case of technical failures or external events such as control surface defects or icing, aircraft dynamics and parameters are changed. Due to nonlinear dynamics of aircraft, usually the exact new altered dynamics cannot be determined by the pilot. Therefore the pilot who tries to plan a safe landing trajectory as soon as possible may implement a maneuver which is not feasible anymore according to the altered dynamics of the impaired aircraft and leads to aircraft loss of control (LOC). Therefore, the main challenge in the prevention of LOC-led-accidents is to increase the pilot's situational awareness and develop better control systems which both require post-failure dynamics identification and modeling. Both neural networks and neuro-fuzzy systems can be used for high-fidelity modeling of the aircraft nonlinear dynamics, however, the one with better generalization capability should be chosen. In this paper, several neural networks and local model networks are developed to model the nonlinear dynamics of an impaired aircraft with damaged rudder. These networks are trained using different training algorithms and their generalizations to the new cases of rudder failure are compared. Results show that both network types have good performance but neural networks generalize better to the new data than local model networks.
如果发生技术故障或外部事件,如控制面缺陷或结冰,则会改变飞机的动力学和参数。由于飞机的动力学是非线性的,飞行员通常无法确定确切的新改变的动力学。因此,试图尽快规划安全着陆轨迹的飞行员可能会根据受损飞机的动力学变化实施不再可行的机动,导致飞机失去控制(LOC)。因此,预防loc导致的事故的主要挑战是提高飞行员的态势感知能力和开发更好的控制系统,这两者都需要故障后动力学识别和建模。神经网络和神经模糊系统均可用于飞机非线性动力学的高保真建模,但应选择泛化能力较好的模型。本文提出了几种神经网络和局部模型网络,用于建立带有损伤方向舵的受损飞机的非线性动力学模型。使用不同的训练算法对这些网络进行训练,并比较了它们在新的方向舵故障情况下的推广情况。结果表明,两种网络类型都具有良好的性能,但神经网络对新数据的泛化优于局部模型网络。
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引用次数: 1
The Role of ICT in Corruption Elimination: A Holistic Approach 信息通信技术在消除腐败中的作用:一个整体的方法
M. Danish, T. Senjyu, Mohammad Aman Yaqobi, Zahra Nazari, Hidehito Matayoshi, H. Zaheb
Every nations' socio-economic development directly depends on the corruption index. Turn the tide toward sustainable development, corrupted-free society along with socio-economic prosperity would not be possible without relying on the lessons learned from other nations, which overcome this problem. This study unlike the literature, designed an appropriate framework that aligning the sustainability, management, technical, technological aspects of an overall technology (ICT-Information and Communications Technology) within sustainability objectives. As well as, this study set out to develop an anti-corruption schematic platform (a basic concept at this stage using mobile/PC application) for corruption effective reduction considering the real-life acceptance condition of the least developing nations. With an ultimate aim to add value to the prosperity trend and alleviate the corruption rate. The proposed schematic platform for anti-corruption elimination in term of the developing nation, ultimately contributes to achieve the goals of global and national levels' endeavor toward transparency by deploying the proposed solution as a pilot project for a long-run sustainability.
每个国家的社会经济发展直接取决于腐败指数。如果不依靠从克服了这一问题的其他国家吸取的教训,就不可能把潮流转向可持续发展、无腐败的社会以及社会经济繁荣。与文献不同的是,本研究设计了一个适当的框架,将整体技术(信息通信技术)的可持续性、管理、技术和技术方面与可持续性目标保持一致。此外,考虑到最不发达国家的现实接受条件,本研究着手开发一个反腐败示意图平台(现阶段使用移动/PC应用程序的基本概念),以有效减少腐败。最终目的是增加繁荣趋势的价值,降低腐败率。从发展中国家的角度来看,建议的消除反腐败纲要平台最终有助于实现全球和国家层面努力实现透明度的目标,通过将建议的解决方案作为长期可持续性的试点项目加以部署。
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引用次数: 4
Applying Deep Learning to Public Health: Using Unbalanced Demographic Data to Predict Thyroid Disorder 将深度学习应用于公共卫生:使用不平衡人口统计数据预测甲状腺疾病
Yasser Attiga, Shih-Yin Chen, J. LaGue, Anaelia Ovalle, Nathan Stott, T. Brander, Abdullah Khaled, Gaurika Tyagi, P. Francis-Lyon
This study investigates the use of Deep Neural Learning to predict propensity for disease from demographic information alone, with thyroid disease as the test application. The imbalanced dataset of 747,301 samples contained 13 demographic predictor variables that were not known to be associated with the disease, and had much missing information. A TensorFlow feed-forward neural network was trained to predict thyroid disease. Different activation functions and a variety of up-sampling and down-sampling methods were employed. The lift statistic was used to evaluate success in identifying patients with a propensity for thyroid disease. The DNN model outperformed the Random Forest model with a 36.63% improvement in the lift statistic. These results suggest that deep learning may be successfully employed to select candidates for early intervention for improved health outcomes, utilizing a large dataset with only minimal demographic variables, similar to datasets that are held by the marketing arms of healthcare providers.
本研究探讨了使用深度神经学习来预测疾病倾向,仅从人口统计信息,甲状腺疾病作为测试应用。747,301个样本的不平衡数据集包含13个未知与疾病相关的人口统计学预测变量,并且有许多缺失信息。训练TensorFlow前馈神经网络预测甲状腺疾病。采用了不同的激活函数和多种上采样和下采样方法。lift统计量被用来评估成功识别甲状腺疾病倾向的患者。DNN模型在提升统计量上优于随机森林模型,提高了36.63%。这些结果表明,深度学习可以成功地用于选择早期干预的候选人,以改善健康结果,利用只有最小人口变量的大型数据集,类似于医疗保健提供者的营销部门持有的数据集。
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引用次数: 2
An Adaptive MTPA Control Method for Interior Permanent Magnet Synchronous Motors Considering Demagnetization and Temperature Effects 考虑退磁和温度效应的内置永磁同步电动机自适应MTPA控制方法
Jinhui Xia, Navid Amiri, J. Jatskevich, Yuanbo Guo, Xiaohua Zhang
For the interior permanent magnet synchronous motors (IPMSMs), the flux linkage variations caused by demagnetization and temperature effects commonly exist, which deteriorate the accuracy of maximum torque per ampere (MTPA) operation. This paper proposes an adaptive MTPA control method for IPMSM drives that takes into account the flux variations. The method works by considering the relationships among the flux linkage of the permanent magnet, the d-axis current, and the temperature using the knowledge of the demagnetization curves. The optimal current angle for the MTPA operation is online computed by updating the flux linkage. The proposed adaptive MTPA control strategy is demonstrated on a speed servo control system of the IPMSM. Simulation studies are carried out to validate the effectiveness and robustness of the proposed control method.
对于内嵌式永磁同步电动机,由于退磁和温度效应引起的磁链变化普遍存在,从而降低了最大转矩每安培(MTPA)运行的精度。提出了一种考虑磁链变化的永磁同步电动机自适应MTPA控制方法。该方法利用消磁曲线的知识,考虑了永磁体磁链、d轴电流和温度之间的关系。通过更新磁链,在线计算MTPA运行的最佳电流角。在IPMSM的速度伺服控制系统上验证了所提出的自适应MTPA控制策略。仿真研究验证了所提控制方法的有效性和鲁棒性。
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引用次数: 1
University Students' M-leaming Adaption Behavioral Factors: A Pilot Study 大学生移动学习适应行为因素的初步研究
S. K. Basak, Marguerite Wotto, P. Bélanger
This study analyzes factors affecting international student's intentional m-learning use in higher education. Using the UTAUT model and four other variables, a framework was developed. Data was collected from seventeen students' from a Canadian public university. This data was analyzed using the SPSS version 24.0 and WarpPLS 5.0. Results show that performance expectancy and effort expectancy equally predicts m-learning behavioral intention in higher education. Furthermore, social factors have the highest significant factor on the behavioral intention. Finally, facilitating condition negatively influences m-learning behavioral intention. This study presents both theoretical and empirical contribution in order to understand predicting variables on m-learning use in higher education.
本研究分析了影响国际学生在高等教育中有意使用移动学习的因素。利用UTAUT模型和其他四个变量,开发了一个框架。数据收集自加拿大一所公立大学的17名学生。使用SPSS 24.0和WarpPLS 5.0对数据进行分析。结果表明,绩效期望和努力期望对高等教育移动学习行为意愿的预测作用相同。此外,社会因素对行为意愿的影响最大。促进条件对移动学习行为意向有负向影响。为了理解移动学习在高等教育中使用的预测变量,本研究提出了理论和实证贡献。
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引用次数: 4
An Integrated Solution for Monitoring Domestic Appliances Using iot Facilitating Energy Conservation 基于物联网的家用电器监控集成解决方案助力节能
Himadri Nath Saha, Tanishq Banerjee, Somshubhra Roy, S. Pandit, Sayan Dutta, Subham Sadhukhan, Nityasree Upadhyay, P. Chakraborty, Souranshu Ghosh
In this paper, we present an effective implementation of loT(lnternet of Things)which is used for monitoring regular domestic appliances. Our system facilitates energy conservation as well. The proposed system is using the concept of IoT that uses computers or mobile devices to control basic domestic appliances and features automaticallyfrom a large distance. There are five sub-projects namely: automated water tap control system, automated lighting control system, automated door lock system, automated gas detector system and automated temperature control system. The automated water tap control system detects the level of the water and controls the tap accordingly. The automated lighting control system detects the presence of a person in a room and glows the light accordingly. The objective of automated door lock system is to enhance the security of the home. The gas detector system rings an alarm on detecting leakage of any kind of gas. The temperature control system detects the rise in temperature of the room and controls the air conditioner subsequently. The proposed system performs better than all the existing systems in terms of energy efficiency, cost, usability and portability. Our aim is to propose a system which would minimize the wastage of energy as well as human effort starting from our home itself.
在本文中,我们提出了一种用于监控普通家用电器的loT(物联网)的有效实施。我们的系统也有利于节约能源。该系统是利用计算机或移动设备控制基本家电,远距离自动运行的物联网(IoT)概念。五个子项目分别是:自动自来水控制系统、自动照明控制系统、自动门锁系统、自动气体检测系统和自动温度控制系统。自动水龙头控制系统检测水位并相应地控制水龙头。自动照明控制系统检测到房间里有人,并相应地发光。自动门锁系统的目的是提高家庭的安全性。气体探测系统在探测到任何气体泄漏时都会发出警报。温度控制系统检测到房间温度的上升,然后控制空调。该系统在能源效率、成本、可用性和便携性方面优于所有现有系统。我们的目标是提出一种系统,可以最大限度地减少能源的浪费,以及从我们的家庭本身开始的人力。
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引用次数: 0
期刊
2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)
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