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2009 International Conference on Emerging Technologies最新文献

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Lexical functional grammar for Urdu modal verbs 乌尔都语情态动词的词汇功能语法
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353212
Qaiser Abbas, Ahsan Nabi Khan
Lexical Functional Grammar (LFG) is developed to understand the syntactic and semantic structure of Urdu modal verbs from a corpus. The most popular tool XLE for parsing is used to implement LFG and analyze the results. Published literature of modal verbs in Urdu is very much short and limited in nature; however, modal verbs in Urdu are identified and collected from Urdu literature and English literature by translation. A huge corpus is analyzed and sentences including modal verbs like ‘UW’, ‘UL’ etc are extracted from the corpus. Rules are extracted from these sentences and finally, lexical functional grammar for these sentences is developed which provides syntactic and semantic structure of sentences.
词汇功能语法是为了理解语料库中乌尔都语情态动词的句法和语义结构而发展起来的。最流行的解析工具XLE用于实现LFG并分析结果。已发表的乌尔都语情态动词的文献很短,性质很有限;然而,乌尔都语中的情态动词是通过翻译从乌尔都语文献和英语文献中识别和收集的。分析了一个庞大的语料库,并从语料库中提取了包括“UW”、“UL”等情态动词在内的句子。从这些句子中提取规则,最后形成这些句子的词汇功能语法,提供句子的句法和语义结构。
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引用次数: 15
Performance analysis of ESPRIT algorithm on a single broadband signal ESPRIT算法在单宽带信号下的性能分析
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353153
Muhammad Faisal Khan, M. Tufail
In this paper, the problem of bearing estimation of a single wideband source is addressed. ESPRIT is a subspace based method which was originally developed by Roy and Kailath for direction of arrival estimation of narrow-band emitter signals. To use this method for wide-band signal, the wide-band signal is first decomposed into several narrow band frequency bins using Fourier Transform, and ESPRIT is subsequently applied separately on each frequency bin. This is a computationally costly method but shows promising results. Simulations are used to describe the performance of the said algorithm, when the number of frequency bins is changed. It is also shown that the variance of estimates is increased as the angle of arrival from the broad-side of a uniform linear array is increased.
本文研究了单一宽带信号源的方位估计问题。ESPRIT是Roy和Kailath最初提出的一种基于子空间的窄带发射信号到达方向估计方法。为了将该方法应用于宽带信号,首先对宽带信号进行傅里叶变换分解为多个窄带频仓,然后对每个频仓分别应用ESPRIT。这是一种计算成本很高的方法,但显示出有希望的结果。通过仿真来描述该算法在改变频箱数量时的性能。结果表明,随着均匀线阵宽侧到达角的增大,估计的方差也随之增大。
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引用次数: 0
Optimization of probabilistic & decentralized load balancer on SSI cluster SSI集群上概率分散负载均衡器的优化
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353198
S. Mohsin, F. Ahsan, M. Faheem, Usman Aftab, Imtiaz Ahmed
The work done in this research attempts to improve the load balancer of OpenMosix. Interestingly trivial changes made to any load balancing algorithm can produce dramatic results. The parameters that effect the load balancing algorithm are first evaluated with the default configurations and then modifications have been made to the /proc file-system dynamically to optimize it in OM. A stronger system in the SSI is assigned most of the workload for a given process whereas relatively slower systems are not as much active; hence reducing the overall efficiency. Making the faster systems pretend to be slower, results are more optimized among the whole SSI nodes. The results show that tuning the speed and decay interval parameters from the /proc interface improves the performance of the overall SSI for the given task.
本研究旨在改进OpenMosix的负载均衡器。有趣的是,对任何负载平衡算法进行微小的更改都可能产生显著的结果。首先使用默认配置评估影响负载平衡算法的参数,然后对/proc文件系统进行动态修改,以便在OM中对其进行优化。SSI中较强的系统为给定进程分配了大部分工作负载,而相对较慢的系统则没有那么活跃;因此降低了整体效率。让更快的系统假装更慢,结果在整个SSI节点中得到了更好的优化。结果表明,调优来自/proc接口的速度和衰减间隔参数可以提高给定任务的整体SSI性能。
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引用次数: 0
Numeral recognition for Urdu script in unconstrained environment 无约束环境下乌尔都语文字的数字识别
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353203
M. I. Razzak, S. A. Hussain, M. Sher
Online character recognition of Urdu script based languages is one of the most difficult task due to cursive in nature. Urdu script based languages has not received much attestation even this script is used 1/6th of the population. The complexities in the script makes more complicated the recognition process. The problem in handwritten numeral recognition is the shape similarity between handwritten numerals. This paper presents a fuzzy rule base approach for the recognition of numerals both Urdu and Arabic in unconstrained environment. The proposed system is tested and provides accuracy of 96.3%.
基于乌尔都语文字的在线字符识别由于其草书的性质是最困难的任务之一。以乌尔都语为基础的语言并没有得到太多的证明,即使这种文字在六分之一的人口中使用。脚本的复杂性使得识别过程更加复杂。手写体数字识别中的问题是手写体数字之间的形状相似性。本文提出了一种基于模糊规则库的无约束环境下乌尔都语和阿拉伯语数字识别方法。经测试,该系统的准确率为96.3%。
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引用次数: 15
Seamless long term learning in agile teams for sustainable leadership 在敏捷团队中进行无缝的长期学习,以实现可持续的领导力
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353140
M. Qureshi, M. Kashif
Seamless and continuous support for long term organizational learning needs is essential for long lasting progress of the organization. Agile process model provides an excellent opportunity to cater that specific problem and also helps in motivation, satisfaction, coordination, presentation and technical skills enhancement of agile teams. This long term learning process makes organization to sustain their current successes and lead both organization and team members to successful and dynamic market leaders.
对组织长期学习需求的无缝和持续支持是组织长期持续发展的必要条件。敏捷过程模型提供了一个很好的机会来解决这个特定的问题,也有助于敏捷团队的激励、满意度、协调、表达和技术技能的提高。这种长期的学习过程使组织能够保持当前的成功,并领导组织和团队成员成为成功的、充满活力的市场领导者。
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引用次数: 7
SCADA for spinning plants: A low cost/non-conventional approach 用于纺纱厂的SCADA:一种低成本/非常规的方法
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353180
Taufeeq Elahi Diju, Haseeb Aslam Butt, M. I. Baig
Fibre spinning industries need low cost, robust and effective monitoring systems on their machines. This is achieved by using a non-conventional approach for data acquisition and it's processing, using only low cost mechanical actuation system and digital components instead of costly PLCs and commercial SCADA packages. The system effectively processes thousands of inputs and produces the live status and improves efficiency and production of the plant against a very little investment. This control system is implemented at Crescent Jute Products Ltd., Jarhanwala (PAKISTAN).
纤维纺纱工业需要低成本、强大和有效的机器监控系统。这是通过使用非常规的数据采集和处理方法来实现的,只使用低成本的机械驱动系统和数字组件,而不是昂贵的plc和商业SCADA包。该系统有效地处理数千个输入,并产生活状态,以很少的投资提高工厂的效率和产量。该控制系统在新月黄麻产品有限公司实施,贾汉瓦拉(巴基斯坦)。
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引用次数: 0
An invisible dual watermarking scheme for authentication and copyrights protection 一种用于认证和版权保护的不可见双重水印方案
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353165
F. Khattak, Abdul Bais, Y. M. Khawaja
This paper focuses on two problems, authentication and copyrights protection, faced by digital media in general and digital images in particular. We discuss how two algorithms defined separately can be combined to produce a secure digital camera which provides a solution to these problems. First, a robust quantization based wavelet domain scheme is applied to embed a robust watermark in the image for the purpose of owner identification. After that, a semi-fragile scheme is used to watermark the robust watermarked image for authentication. Experimental results show that recovered robust watermark had high correlation with the embedded robust watermark after different attacks. Under perfect conditions, recovered fragile watermark also showed perfect correlation with embedded fragile watermark, but after attacks, the similarity index dropped indicating that image is not authentic.
本文主要研究数字媒体特别是数字图像所面临的认证和版权保护两个问题。我们讨论了如何将两种单独定义的算法结合起来产生安全的数码相机,从而为这些问题提供了解决方案。首先,采用基于鲁棒量化的小波域方案在图像中嵌入鲁棒水印,实现图像所有者识别;然后,采用半脆弱方案对鲁棒水印图像进行水印验证。实验结果表明,经过不同攻击后,恢复的鲁棒水印与嵌入的鲁棒水印具有较高的相关性。在完美条件下,恢复的脆弱水印与嵌入的脆弱水印也表现出完美的相关性,但经过攻击后,相似度指数下降,表明图像不真实。
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引用次数: 1
Pre and post earthquake forest damage assessment — A case study of 2005 earthquake impact on forest of Machiara National Park, Pakistan 地震前后森林破坏评估——以2005年巴基斯坦马基亚拉国家公园地震对森林影响为例
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353141
U. Saeed, K. Gill, H. Ali, H. Gilani, N. Shahzad
October 2005 earthquake in Pakistan measuring at 7.6 Richter scale jolted huge area of Himalayan Mountains leaving over 75 thousands people dead; 80,000 people injured and about 3.5 million people as homeless. It not only destroyed buildings, telecommunication, roads, and power supply but also hampered the natural resources of the area. Current study aims to analyze the forest damage caused by earthquake, massive aftershocks and post land sliding in Machiara National Park. Machiara National Park (MNP) is situated in the Himalayan Highlands in Muzaffarabad District of Pakistan. It is in the Western Himalayan Broadleaf forest region and is one of the Global 200 Ecoregion. For the forest damage assessment, satellite images of 2000, 2005 and 2007 are being used. An extensive filed visit of the area was conducted to collect ground truth data. Pre and pots earthquake analysis reveal an overall decrease of 3% in conifer forest from 2000–2005 whereas 17% decrease from 2005–2007 is observed. Increased forest degradation rate due to triggered landslidings (in higher elevation and less forested/barren land) highlights the protective role of forest.
2005年10月在巴基斯坦发生的里氏7.6级地震震动了喜马拉雅山脉的大片地区,造成超过7.5万人死亡;8万人受伤,350万人无家可归。它不仅摧毁了建筑物、电信、道路和电力供应,而且阻碍了该地区的自然资源。目前的研究旨在分析地震、大规模余震和后滑坡对马基亚拉国家公园的森林造成的破坏。马基亚拉国家公园(MNP)位于巴基斯坦穆扎法拉巴德地区的喜马拉雅高原。它位于喜马拉雅西部阔叶林地区,是全球200强生态区域之一。森林损害评估使用的是2000年、2005年和2007年的卫星图像。对该地区进行了广泛的实地考察,以收集地面实况数据。地震前和地震后分析显示,2000-2005年针叶林总体减少3%,而2005-2007年减少17%。由于引发的滑坡(在较高海拔和较少森林/荒地),森林退化率增加,突出了森林的保护作用。
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引用次数: 2
Performance evaluation of multicast protocols for multimedia traffic 多媒体流量组播协议的性能评价
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353139
Usman Shaukat, A. Qayyum, S. Hussain
With the ever increasing demand of multimedia traffic on the internet the interest in deploying multicast has increased. One hurdle in this regard is quantifying the multicast protocol performance. Many efforts have been put into defining multicast metrics for evaluating protocol performance. In this paper we identified metrics that will provide reasonable measure of protocol's efficiency. The metric is developed keeping two perspectives in mind. First, how efficient a multicast protocol is in utilizing network resources and second, the quality of service it can provide to the end user. A simulation was done using ns-2 to evaluate the performance of multicast protocols based on the metrics we identified. The overall performance of each protocol is calculated and relative efficiency of each protocol is established based on our metrics.
随着互联网多媒体业务需求的不断增长,组播技术的应用日益受到关注。在这方面的一个障碍是量化多播协议的性能。在定义多播度量以评估协议性能方面已经付出了许多努力。在本文中,我们确定了将提供协议效率的合理度量的指标。该指标的开发考虑了两个角度。一是多播协议利用网络资源的效率;二是多播协议为终端用户提供的服务质量。在此基础上,利用ns-2对多播协议的性能进行了仿真。计算了每个协议的总体性能,并根据我们的指标确定了每个协议的相对效率。
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引用次数: 5
Face detection using 2D-Discrete Cosine Transform and Back Propagation Neural Network 基于二维离散余弦变换和反向传播神经网络的人脸检测
Pub Date : 2009-12-11 DOI: 10.1109/ICET.2009.5353205
Moeen Tayyab, M. F. Zafar
Human brain can detect faces from the images constructed in their eyes. The face detection is a computerize method of locating the face in the digital image. It is an important challenge to locate faces from uncontrolled and indistinguishable background of the digital image. This paper presents human face detection from the colored images. Skin color segmentation is used for localizations of skin colored components in the digital image. The features are extracted by using 2D-Discrete Cosine Transform (2D-DCT) and the Back Propagation Neural Network (BPN) is used for training and testing phases. In this research, total of 50, 100 and 180 images datasets have been used. About 60 % of the images are used for training phase and 40 % of the images are used for testing phase. The detection rate has been obtained as 84.03 % with the false rate of 5.05. These results are better than the results of existing methods of face detection using 2D-DCT
人类的大脑可以通过眼睛里的图像来识别人脸。人脸检测是一种在数字图像中定位人脸的计算机化方法。如何在数字图像中不受控制和难以区分的背景中定位人脸是一个重要的挑战。本文提出了一种基于彩色图像的人脸检测方法。肤色分割用于数字图像中肤色成分的定位。利用二维离散余弦变换(2D-DCT)提取特征,并利用反向传播神经网络(BPN)进行训练和测试阶段。本研究共使用了50、100和180个图像数据集。大约60%的图像用于训练阶段,40%的图像用于测试阶段。结果表明,该方法的检出率为84.03%,漏检率为5.05。这些结果优于现有的2D-DCT人脸检测方法的结果
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引用次数: 9
期刊
2009 International Conference on Emerging Technologies
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