首页 > 最新文献

2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)最新文献

英文 中文
A multi-bin constant throughput CABAC decoder for HEVC 用于HEVC的多仓恒吞吐量CABAC解码器
Hsuan-ku Chen, C. Fang, Tian-Sheuan Chang
This paper proposes a CABAC decoder for HEVC that achieves constant high throughput multi-bin decoding with the parallel syntax element parser to solve the dependency problem in the traditional prediction based multi-bin architecture. The hardware implementation with TSMC 90nm CMOS technology can process 1 bins per cycles with 48,430 gate count (270Mbins/sec,) or 3 bins per cycle with 209,422 gate count (810Mbins/sec) when operating at 270MHz.
本文提出了一种用于HEVC的CABAC解码器,该解码器利用并行语法元素解析器实现了持续高吞吐量的多码元解码,解决了传统基于预测的多码元结构中的依赖问题。采用台积电90nm CMOS技术的硬件实现可以在每周期处理1个箱子,48,430个门计数(270Mbins/sec),或在270MHz工作时每周期处理3个箱子,209,422个门计数(810Mbins/sec)。
{"title":"A multi-bin constant throughput CABAC decoder for HEVC","authors":"Hsuan-ku Chen, C. Fang, Tian-Sheuan Chang","doi":"10.1109/AEECT.2015.7360544","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360544","url":null,"abstract":"This paper proposes a CABAC decoder for HEVC that achieves constant high throughput multi-bin decoding with the parallel syntax element parser to solve the dependency problem in the traditional prediction based multi-bin architecture. The hardware implementation with TSMC 90nm CMOS technology can process 1 bins per cycles with 48,430 gate count (270Mbins/sec,) or 3 bins per cycle with 209,422 gate count (810Mbins/sec) when operating at 270MHz.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127478296","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
The application of System Identification via Canonical Variate Algorithm to North Benghazi gas turbine Power generation system 典型变量算法在北班加西燃气轮机发电系统辨识中的应用
O. Mohamed, A. Khalil, Marwan Limhabrash, Jihong Wang
The topic of modeling and identification of gas turbines has become an interesting research area for many years and will become so for many years to come. This paper clarifies what is known as Canonical Variate Algorithm or canonical variate analysis (CVA) method of subspace state space system identification. A gas turbine operating currently in North Benghazi Power Plant (NBPP) is the process chosen to be our focus of study in the paper. The CVA is described from mathematics and linear algebra view points. The process of gas turbine under investigation is illustrated and discussed. Through gathered operating data from the power plant under study and MATLAB System Identification Toolbox, the state space model is developed and tested against different data signals. Simulation results have shown the robustness and the accuracy of the presented method of identification.
多年来,燃气轮机的建模和识别一直是一个有趣的研究领域,而且在未来的许多年里还将如此。本文阐述了子空间状态空间系统识别的典型变量算法或典型变量分析(CVA)方法。北班加西电厂(NBPP)正在运行的燃气轮机是本文研究的重点。从数学和线性代数的角度对CVA进行了描述。对所研究的燃气轮机的过程进行了说明和讨论。通过采集所研究电厂的运行数据,利用MATLAB系统识别工具箱建立状态空间模型,并针对不同的数据信号进行了测试。仿真结果表明了该辨识方法的鲁棒性和准确性。
{"title":"The application of System Identification via Canonical Variate Algorithm to North Benghazi gas turbine Power generation system","authors":"O. Mohamed, A. Khalil, Marwan Limhabrash, Jihong Wang","doi":"10.1109/AEECT.2015.7360556","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360556","url":null,"abstract":"The topic of modeling and identification of gas turbines has become an interesting research area for many years and will become so for many years to come. This paper clarifies what is known as Canonical Variate Algorithm or canonical variate analysis (CVA) method of subspace state space system identification. A gas turbine operating currently in North Benghazi Power Plant (NBPP) is the process chosen to be our focus of study in the paper. The CVA is described from mathematics and linear algebra view points. The process of gas turbine under investigation is illustrated and discussed. Through gathered operating data from the power plant under study and MATLAB System Identification Toolbox, the state space model is developed and tested against different data signals. Simulation results have shown the robustness and the accuracy of the presented method of identification.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131008452","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: 3
Multiphase unbalanced power flow and fault analysis of distribution networks with high penetration of inverter-interfaced DERs 高插接逆变器的配电网多相不平衡潮流及故障分析
H. Hooshyar, L. Vanfretti
The traditional power flow and fault analysis methods fail to meet the requirements in both performance and accuracy aspects in the distribution network applications. This is due to the unbalanced multiphase nature of the distribution network and also due to the emerging penetration of renewable generation at the distribution level. This paper proposes a comprehensive method for power flow solution and fault analysis of multiphase unbalanced distribution networks with high penetration of inverter-interfaced DERs. Also, the self-protection scheme employed for the inverter of the DERs is also formulated in the proposed method. Performance of the proposed method has been assessed by simulations on a sample distribution network.
传统的潮流和故障分析方法在配电网应用中,在性能和精度方面都不能满足要求。这是由于配电网络的不平衡多相特性,也是由于可再生能源发电在配电层面的新兴渗透。本文提出了一种高插接逆变器的多相不平衡配电网潮流求解和故障分析的综合方法。此外,本文还提出了一种用于逆变器的自保护方案。通过对一个样本配电网的仿真,验证了该方法的性能。
{"title":"Multiphase unbalanced power flow and fault analysis of distribution networks with high penetration of inverter-interfaced DERs","authors":"H. Hooshyar, L. Vanfretti","doi":"10.1109/AEECT.2015.7360585","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360585","url":null,"abstract":"The traditional power flow and fault analysis methods fail to meet the requirements in both performance and accuracy aspects in the distribution network applications. This is due to the unbalanced multiphase nature of the distribution network and also due to the emerging penetration of renewable generation at the distribution level. This paper proposes a comprehensive method for power flow solution and fault analysis of multiphase unbalanced distribution networks with high penetration of inverter-interfaced DERs. Also, the self-protection scheme employed for the inverter of the DERs is also formulated in the proposed method. Performance of the proposed method has been assessed by simulations on a sample distribution network.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132027626","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
Reliability and economic assessment of renewable micro-grid with V2G electric vehicles coordination V2G电动汽车协同下可再生微电网可靠性与经济性评价
Saifullah Shafiq, A. Al-Awami
Now-a-days, the consumption of fossil fuel is increasing day by day and the major proportion of it is consumed by vehicles and auto-mobiles. To decrease their dependability on fossil fuels, one solution is to electrify the vehicles by converting the fossil fuels based cars into electric vehicles (EVs) that will not only reduce dependability on fossil fuels but also play a key role in reducing the greenhouse effect. However, electrifying the vehicles increases the electrical load that has a significant impact on power system and upcoming smart grid which may eventually reduce the power system reliability. In this paper, the reliability and economic assessment of micro-grid consisting of renewables only, considering non-controllable loads as well as controllable EVs load, is investigated. In order to reduce the adverse effects of EVs on the micro-grid performance, dedicated G2V and V2G periods, taking social behavior into account, are proposed. Hourly load variations of IEEE-RTS-79 are used to examine the proposed model. Sensitivity analysis is well presented to analyze the impact of different V2G coordination levels on the micro-grid reliability.
如今,化石燃料的消耗日益增加,其中大部分消耗在汽车和汽车上。为了减少对化石燃料的依赖,一种解决方案是将基于化石燃料的汽车转换为电动汽车(ev),这不仅降低了对化石燃料的依赖,而且在减少温室效应方面发挥了关键作用。然而,电动汽车增加了电力负荷,对电力系统和即将到来的智能电网产生重大影响,最终可能降低电力系统的可靠性。本文研究了仅由可再生能源组成的微电网在考虑不可控制负荷和可控电动汽车负荷的情况下的可靠性和经济性评估。为了减少电动汽车对微电网性能的不利影响,提出了考虑社会行为的专用G2V和V2G时段。使用IEEE-RTS-79的小时负荷变化来检验所提出的模型。采用敏感性分析方法分析不同V2G协调水平对微网可靠性的影响。
{"title":"Reliability and economic assessment of renewable micro-grid with V2G electric vehicles coordination","authors":"Saifullah Shafiq, A. Al-Awami","doi":"10.1109/AEECT.2015.7360589","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360589","url":null,"abstract":"Now-a-days, the consumption of fossil fuel is increasing day by day and the major proportion of it is consumed by vehicles and auto-mobiles. To decrease their dependability on fossil fuels, one solution is to electrify the vehicles by converting the fossil fuels based cars into electric vehicles (EVs) that will not only reduce dependability on fossil fuels but also play a key role in reducing the greenhouse effect. However, electrifying the vehicles increases the electrical load that has a significant impact on power system and upcoming smart grid which may eventually reduce the power system reliability. In this paper, the reliability and economic assessment of micro-grid consisting of renewables only, considering non-controllable loads as well as controllable EVs load, is investigated. In order to reduce the adverse effects of EVs on the micro-grid performance, dedicated G2V and V2G periods, taking social behavior into account, are proposed. Hourly load variations of IEEE-RTS-79 are used to examine the proposed model. Sensitivity analysis is well presented to analyze the impact of different V2G coordination levels on the micro-grid reliability.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134592586","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: 21
Remote low-power digital design system 远程低功耗数字设计系统
Shatha AbuShanab, M. Winzker, R. Bruck
This contribution will discuss the architecture and operation of a remote low-power digital design system at the Bonn-Rhine-Sieg University in Germany for teaching the concepts of low-power digital circuit design. Recently, a low-power digital system is an essential technological need due to the high demand for portable devices with less weight. The design of an efficient digital circuit in term of low-power has become a very challenging problem. Therefore, teaching low-power digital design for electrical and computer engineering students is valuable, and it is essential to have practical laboratory exercises available. The laboratory experiments use a field programmable gate array (FPGA) as a design platform for circuit implementation by the students. Remote laboratories offer on-line experiments which are not restricted to a geographical place and allow performing laboratory experiments using real instruments and obtaining real data.
本文将讨论德国波恩-莱茵-锡格大学用于教授低功耗数字电路设计概念的远程低功耗数字设计系统的架构和操作。近年来,由于对轻便便携设备的需求越来越大,低功耗数字系统成为一项重要的技术需求。设计一种高效的低功耗数字电路已成为一个非常具有挑战性的问题。因此,为电气和计算机工程专业的学生教授低功耗数字设计是很有价值的,并且有实际的实验室练习是必不可少的。实验室实验采用现场可编程门阵列(FPGA)作为设计平台,由学生进行电路实现。远程实验室提供不受地理位置限制的在线实验,允许使用真实仪器进行实验室实验并获得真实数据。
{"title":"Remote low-power digital design system","authors":"Shatha AbuShanab, M. Winzker, R. Bruck","doi":"10.1109/AEECT.2015.7360569","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360569","url":null,"abstract":"This contribution will discuss the architecture and operation of a remote low-power digital design system at the Bonn-Rhine-Sieg University in Germany for teaching the concepts of low-power digital circuit design. Recently, a low-power digital system is an essential technological need due to the high demand for portable devices with less weight. The design of an efficient digital circuit in term of low-power has become a very challenging problem. Therefore, teaching low-power digital design for electrical and computer engineering students is valuable, and it is essential to have practical laboratory exercises available. The laboratory experiments use a field programmable gate array (FPGA) as a design platform for circuit implementation by the students. Remote laboratories offer on-line experiments which are not restricted to a geographical place and allow performing laboratory experiments using real instruments and obtaining real data.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129023374","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
A miniaturized dual-band meander line antenna for RF energy harvesting applications 一种用于射频能量采集应用的小型化双频弯曲线天线
A. Salih, M. Sharawi
A dual band electrically small meander line antenna is designed for RF energy harvesting applications. The antenna is designed to cover the most known wireless cellular networks such as GSM 900, GSM 1800 and UMTS. The dual band property is achieved by using two different radiators, each of them is responsible for covering one band and a lambda/4 transformer is used to match the antenna at 915 MHz. The antenna is fabricated on Rogers RO4350 board and the measured results had a good agreement with simulated ones. The fabricated antenna is compared to a reference antenna (a dipole antenna). Both antennas are tested with an RF energy harvesting kit and the maximum covered distance is recorded. The total size of the proposed antenna was 45 × 32.6 × 1.52 mm3.
设计了一种用于射频能量采集应用的双波段电小弯曲线天线。该天线设计用于覆盖最知名的无线蜂窝网络,如GSM 900、GSM 1800和UMTS。双频特性是通过使用两个不同的散热器来实现的,每个散热器负责覆盖一个频段,并且使用lambda/4变压器来匹配915 MHz的天线。该天线在Rogers RO4350板上制作,测量结果与仿真结果吻合较好。将所制备的天线与参考天线(偶极子天线)进行比较。两个天线都用射频能量收集套件进行测试,并记录最大覆盖距离。天线总尺寸为45 × 32.6 × 1.52 mm3。
{"title":"A miniaturized dual-band meander line antenna for RF energy harvesting applications","authors":"A. Salih, M. Sharawi","doi":"10.1109/AEECT.2015.7360530","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360530","url":null,"abstract":"A dual band electrically small meander line antenna is designed for RF energy harvesting applications. The antenna is designed to cover the most known wireless cellular networks such as GSM 900, GSM 1800 and UMTS. The dual band property is achieved by using two different radiators, each of them is responsible for covering one band and a lambda/4 transformer is used to match the antenna at 915 MHz. The antenna is fabricated on Rogers RO4350 board and the measured results had a good agreement with simulated ones. The fabricated antenna is compared to a reference antenna (a dipole antenna). Both antennas are tested with an RF energy harvesting kit and the maximum covered distance is recorded. The total size of the proposed antenna was 45 × 32.6 × 1.52 mm3.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129212199","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: 4
Classification of lung sounds based on linear prediction cepstral coefficients and support vector machine 基于线性预测倒谱系数和支持向量机的肺音分类
M. Azmy
The listening to the sounds of lungs is very important to know the detection and analysis of respiratory disorders. Physicians are not able to detect accurately lung sounds of patients. Many computer programs are conducted to help physicians in diagnosing lung diseases. In this paper, a robust classification method of lung sounds (i.e. polyphonic or stridor) is proposed. Features are extracted using Discrete Wavelet Transform (DWT) first. Secondly, linear prediction cepstral coefficients (LPCCs) are calculated. After that delta and delta-delta of LPCCs are extracted. Variance and kurtosis of LPCCs, delta LPCCs and delta-delta LPCCs are extracted as features of lung sounds. Classification of lung sounds is conducted using support vector machine (SVM). Training and testing data are chosen randomly from 42 subjects using cross-validation. Both numbers of testing and training subjects are 21. The obtained recognition percent is 95.24%. So, new classification algorithm is conducted between polyphonic and stridor sounds of lung sounds. The obtained recognition percent is the most.
聆听肺部的声音对了解呼吸系统疾病的发现和分析非常重要。医生不能准确地检测病人的肺音。许多计算机程序被用来帮助医生诊断肺部疾病。本文提出了一种鲁棒的肺音(即复音或喘音)分类方法。首先使用离散小波变换(DWT)提取特征。其次,计算线性预测倒谱系数(LPCCs)。然后提取LPCCs的δ和δ - δ。提取LPCCs、δ LPCCs和δ - δ LPCCs的方差和峰度作为肺音特征。使用支持向量机(SVM)对肺音进行分类。训练和测试数据采用交叉验证法从42名受试者中随机选择。测试和培训科目均为21门。所得识别率为95.24%。在此基础上,对肺音的复调音和喘鸣音进行了新的分类算法。获得的识别率最高。
{"title":"Classification of lung sounds based on linear prediction cepstral coefficients and support vector machine","authors":"M. Azmy","doi":"10.1109/AEECT.2015.7360527","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360527","url":null,"abstract":"The listening to the sounds of lungs is very important to know the detection and analysis of respiratory disorders. Physicians are not able to detect accurately lung sounds of patients. Many computer programs are conducted to help physicians in diagnosing lung diseases. In this paper, a robust classification method of lung sounds (i.e. polyphonic or stridor) is proposed. Features are extracted using Discrete Wavelet Transform (DWT) first. Secondly, linear prediction cepstral coefficients (LPCCs) are calculated. After that delta and delta-delta of LPCCs are extracted. Variance and kurtosis of LPCCs, delta LPCCs and delta-delta LPCCs are extracted as features of lung sounds. Classification of lung sounds is conducted using support vector machine (SVM). Training and testing data are chosen randomly from 42 subjects using cross-validation. Both numbers of testing and training subjects are 21. The obtained recognition percent is 95.24%. So, new classification algorithm is conducted between polyphonic and stridor sounds of lung sounds. The obtained recognition percent is the most.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128412526","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: 10
Twitter sentiment analysis: A case study in the automotive industry Twitter情绪分析:汽车行业的案例研究
Sarah Shukri, Rawan I. Yaghi, Ibrahim Aljarah, Hamad I. Alsawalqah
Sentiment analysis is one of the fastest growing areas which uses the natural language processing, text mining and computational linguistic to extract useful information to help in the decision making process. In the recent years, social media websites have been spreading widely, and their users are increasing rapidly. Automotive industry is one of the largest economic sectors in the world with more than 90 million cars and vehicles. Automotive industry is highly competitive and requires that sellers, automotive companies, carefully analyze and attend to consumers' opinions in order to achieve a competitive advantage in the market. Analysing consumers' opinions using social media data can be very great way for the automotive companies to enhance their marketing targets and objectives. In this paper, a sentiment analyses on a case study in the automotive industry is presented. Text mining and sentiment analysis are used to analyze unstructured tweets on Twitter to extract the polarity, and emotions classification towards the automotive classes such as Mercedes, Audi and BMW. We can note from the emotions classification results that, “joy” category is better for BMW comparing to Mercedes and Audi, The “sadness” percentage is larger for Audi and Mercedes comparing to BMW. Furthermore, we can note from the polarity classification that BMW has 72% positive tweets compared 79% for Mercedes and 83% for Audi. In addition, the results show that BMW has 8% negative polarity compared 18% for Mercedes and 16% for Audi.
情感分析是发展最快的领域之一,它使用自然语言处理、文本挖掘和计算语言来提取有用的信息,以帮助决策过程。近年来,社交媒体网站得到了广泛的传播,其用户也在迅速增加。汽车工业是世界上最大的经济部门之一,拥有超过9000万辆汽车和车辆。汽车行业竞争激烈,要求销售者,汽车公司,仔细分析和关注消费者的意见,以获得市场竞争优势。利用社交媒体数据分析消费者的意见是汽车公司提高营销目标和目标的好方法。本文对汽车行业的一个案例进行了情感分析。利用文本挖掘和情感分析对Twitter上的非结构化推文进行分析,提取极性,并对奔驰、奥迪、宝马等汽车类进行情感分类。从情绪分类结果可以看出,宝马的“快乐”类别比奔驰和奥迪的好,而奥迪和奔驰的“悲伤”类别比宝马的大。此外,我们可以从极性分类中注意到,宝马有72%的正面推文,而梅赛德斯为79%,奥迪为83%。此外,结果显示宝马的负极性为8%,奔驰为18%,奥迪为16%。
{"title":"Twitter sentiment analysis: A case study in the automotive industry","authors":"Sarah Shukri, Rawan I. Yaghi, Ibrahim Aljarah, Hamad I. Alsawalqah","doi":"10.1109/AEECT.2015.7360594","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360594","url":null,"abstract":"Sentiment analysis is one of the fastest growing areas which uses the natural language processing, text mining and computational linguistic to extract useful information to help in the decision making process. In the recent years, social media websites have been spreading widely, and their users are increasing rapidly. Automotive industry is one of the largest economic sectors in the world with more than 90 million cars and vehicles. Automotive industry is highly competitive and requires that sellers, automotive companies, carefully analyze and attend to consumers' opinions in order to achieve a competitive advantage in the market. Analysing consumers' opinions using social media data can be very great way for the automotive companies to enhance their marketing targets and objectives. In this paper, a sentiment analyses on a case study in the automotive industry is presented. Text mining and sentiment analysis are used to analyze unstructured tweets on Twitter to extract the polarity, and emotions classification towards the automotive classes such as Mercedes, Audi and BMW. We can note from the emotions classification results that, “joy” category is better for BMW comparing to Mercedes and Audi, The “sadness” percentage is larger for Audi and Mercedes comparing to BMW. Furthermore, we can note from the polarity classification that BMW has 72% positive tweets compared 79% for Mercedes and 83% for Audi. In addition, the results show that BMW has 8% negative polarity compared 18% for Mercedes and 16% for Audi.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123119469","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: 34
Bandwidth enhancement of single notch planar UWB antenna with single step feed line 单阶馈线单缺口平面超宽带天线的带宽增强
A. Abbas, M. Abdelazeez
A compact single notch microstrip-fed monopole ultra-wideband (UWB) antenna with bandwidth (BW) enhancement is proposed. To improve the impedance BW, a rectangular slot is etched in the bottom edges of a rectangular radiating patch and the feed line is modified in staircase manner with single step junction. As a result, the antenna achieves a wide operational impedance BW ranging from 3.25 to 40 GHz for return loss (RL) > 10 dB. Also, a band rejection with center frequency at 5.5 GHz is introduced to avoid the interference caused by WLAN system. The rejected band, inherent in the antenna characteristics, is created by etching a thin rectangular slot in the patch. The proposed antenna dimensions are 35×30×1.6 mm3 was built using FR-4 substrate. In comparison to other antenna designs devoted to enhance the impedance BW for future UWB applications, this antenna has simple structure suitable for fabrication and integration. RL, peak realized gain, radiation efficiency, surface current distribution, and the effect of varying geometric parameters of the antenna on the notch band are studied using high frequency structure simulator (HFSS).
提出了一种具有带宽增强功能的小型单缺口微带馈电单极超宽带天线。为了提高阻抗BW,在矩形辐射片的底边蚀刻矩形槽,并采用单阶结对馈线进行阶梯修正。因此,该天线在回波损耗(RL) bbb10 dB时实现了3.25至40 GHz的宽工作阻抗BW。同时,为了避免无线局域网系统的干扰,引入了中心频率为5.5 GHz的带抑制。通过在贴片上蚀刻一个薄的矩形槽来产生天线特性固有的拒绝带。提出的天线尺寸为35×30×1.6 mm3,采用FR-4基板构建。与其他致力于提高未来超宽带应用阻抗BW的天线设计相比,该天线结构简单,适合制造和集成。利用高频结构模拟器(HFSS)研究了RL、峰值实现增益、辐射效率、表面电流分布以及天线几何参数对陷波带的影响。
{"title":"Bandwidth enhancement of single notch planar UWB antenna with single step feed line","authors":"A. Abbas, M. Abdelazeez","doi":"10.1109/AEECT.2015.7360537","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360537","url":null,"abstract":"A compact single notch microstrip-fed monopole ultra-wideband (UWB) antenna with bandwidth (BW) enhancement is proposed. To improve the impedance BW, a rectangular slot is etched in the bottom edges of a rectangular radiating patch and the feed line is modified in staircase manner with single step junction. As a result, the antenna achieves a wide operational impedance BW ranging from 3.25 to 40 GHz for return loss (RL) > 10 dB. Also, a band rejection with center frequency at 5.5 GHz is introduced to avoid the interference caused by WLAN system. The rejected band, inherent in the antenna characteristics, is created by etching a thin rectangular slot in the patch. The proposed antenna dimensions are 35×30×1.6 mm3 was built using FR-4 substrate. In comparison to other antenna designs devoted to enhance the impedance BW for future UWB applications, this antenna has simple structure suitable for fabrication and integration. RL, peak realized gain, radiation efficiency, surface current distribution, and the effect of varying geometric parameters of the antenna on the notch band are studied using high frequency structure simulator (HFSS).","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129667649","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: 6
An interactive framework to deliver mobile government services 提供流动政府服务的互动架构
Muder Almiani, Ayman Al dmour, A. Razaque
E-government plays an increasingly significant role in our day-to-day lives. Mobile government (m-Government) is a subset and extension of electronic government e-Government comprising of an alternative channel for governments to improve governments' fundamental functions and providing information and services. This paper introduces an interactive framework for m-Government that improves governmental public services with self-dependability and adaptability in the highly dynamic contextual environment. The proposed interactive framework is composed of eight elements: front ending organizations portal and personalization, existing e-government service systems, interaction and transaction, vertical & horizontal integration channels, electronic participation, m-government core platform, delivery service channels, and end customer. Experiments were conducted to validate the framework's feasibility and results demonstrate the capabilities of the proposed framework.
电子政务在我们的日常生活中扮演着越来越重要的角色。移动政府(m-Government)是电子政府的子集和延伸——电子政府是政府改善政府基本职能、提供信息和服务的另一种渠道。本文介绍了一个移动政府的交互式框架,该框架在高度动态的上下文环境中提高了政府公共服务的自可靠性和适应性。本文提出的交互框架由前端组织门户与个性化、现有电子政务服务系统、交互与交易、纵向与横向整合渠道、电子参与、移动政务核心平台、交付服务渠道、终端客户八个要素组成。实验验证了该框架的可行性,结果验证了该框架的功能。
{"title":"An interactive framework to deliver mobile government services","authors":"Muder Almiani, Ayman Al dmour, A. Razaque","doi":"10.1109/AEECT.2015.7360577","DOIUrl":"https://doi.org/10.1109/AEECT.2015.7360577","url":null,"abstract":"E-government plays an increasingly significant role in our day-to-day lives. Mobile government (m-Government) is a subset and extension of electronic government e-Government comprising of an alternative channel for governments to improve governments' fundamental functions and providing information and services. This paper introduces an interactive framework for m-Government that improves governmental public services with self-dependability and adaptability in the highly dynamic contextual environment. The proposed interactive framework is composed of eight elements: front ending organizations portal and personalization, existing e-government service systems, interaction and transaction, vertical & horizontal integration channels, electronic participation, m-government core platform, delivery service channels, and end customer. Experiments were conducted to validate the framework's feasibility and results demonstrate the capabilities of the proposed framework.","PeriodicalId":227019,"journal":{"name":"2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133240955","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
期刊
2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1