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Frontal view gait based recognition using PCA 基于PCA的正面视图步态识别
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007077
Sanjeeve Sharma, R. Tiwari, A. Shukla, Vikas Singh
Gait is a biometric identification technology, which can identify people from distance, without user cooperation. This paper proposes a simple and efficient automatic gait recognition method taking frontal view silhouette of walking person using principal component analysis. Here for each image, background subtraction method is applied to extract the moving silhouette. These silhouette images are used to extract features using principal component analysis algorithm. Here principal component analysis method is applied to reduce the dimensionality of feature vectors. These reduce features vector represent the most relevant information of walking person, which are able to distinguish one people from others. Our result shows that taking frontal view image for recognition, gives good results. In our work the recognition rate is 97.50%.
步态是一种生物特征识别技术,可以远距离识别人,无需用户配合。本文提出了一种基于主成分分析的简单高效的步行者正面轮廓自动步态识别方法。在这里,对每张图像,使用背景减法提取运动轮廓。利用主成分分析算法提取轮廓图像的特征。本文采用主成分分析法对特征向量进行降维处理。这些约简特征向量代表了行走的人最相关的信息,能够区分不同的人。结果表明,采用正面图像进行识别,效果良好。在我们的工作中,识别率为97.50%。
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引用次数: 3
Forecasting the hourly Ontario energy price by local linear wavelet neural network and ARMA models 利用局部线性小波神经网络和ARMA模型预测安大略省小时电价
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007091
P. K. Pany, S. Ghoshal
Price forecasting has become one of the main focus of electric power market research efforts since price is the key index to evaluate the market competition efficiency and reflects the operation condition of electricity market decision making. The work presented in this paper makes use of local linear wavelet neural networks (LLWNN) & ARMA to find the market price for a given period, with a certain confidence level. The results of the new method show significant improvement in the price forecasting process.
价格是评价市场竞争效率的关键指标,反映了电力市场决策的运行状况,因此价格预测已成为电力市场研究的主要内容之一。本文的工作是利用局部线性小波神经网络(LLWNN)和ARMA来寻找给定时期的市场价格,具有一定的置信度。结果表明,新方法在价格预测过程中有显著的改进。
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引用次数: 3
Development of traffic light control system based on fuzzy logic 基于模糊逻辑的交通灯控制系统的开发
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007085
Sandeep Mehan, Vandana Sharma
Vehicular travel is increasing throughout the world, particularly in large urban areas. With the increasing use of automobiles in cities traffic congestion occurred. So as the transportation system will continue to grow, intelligent traffic controls have to be employed to face road traffic congestion problems. Fuzzy controllers have been widely used in many consumer products and industrial applications with success over the past two decades. For traffic control, however, fuzzy controllers have not been widely applied. This paper proposes a fuzzy traffic lights controller to be used at a complex traffic junction. The real time parameters such as traffic density and queue length are obtained by image processing techniques. So the on and off timings for the green, red and orange lights are adjusted as per the actual road conditions. Fuzzy logic has been widely used to develop a traffic signal controller because it allows qualitative modeling of complex systems. This paper describes a fuzzy logic signal controller for a four--way intersection suitable for mixed traffic, including a high proportion of motorcycles. This paper discusses the traffic control strategy, which dictates the design criteria for the fuzzy logic controller. The components of fuzzy logic controller-the fuzzifier, the fuzzy rule base formulated by human experts, the fuzzy inference engine and the defuzzifier.
世界各地的汽车出行正在增加,尤其是在大城市地区。随着城市中汽车使用量的增加,交通拥堵也随之发生。因此,随着交通系统的不断发展,必须采用智能交通控制来应对道路交通拥堵问题。在过去的二十年中,模糊控制器已广泛应用于许多消费品和工业应用中,并取得了成功。然而,在交通控制方面,模糊控制器并没有得到广泛的应用。本文提出了一种用于复杂交通路口的模糊交通灯控制器。通过图像处理技术获得交通密度、队列长度等实时参数。因此,绿灯、红灯和橙灯的开、关时间会根据实际路况进行调整。模糊逻辑被广泛应用于交通信号控制器的开发,因为它允许对复杂系统进行定性建模。本文设计了一种适用于混合交通的四路交叉口模糊信号控制器。本文讨论了交通控制策略,给出了模糊控制器的设计准则。模糊控制器的组成部分是:模糊器、专家制定的模糊规则库、模糊推理机和去模糊器。
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引用次数: 10
A robust multi-objective optimization to workflow scheduling for dynamic grid 动态网格下工作流调度的鲁棒多目标优化
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007090
Darshan Singh, R. Garg
Grid computing infrastructure emerged as a next generation of high performance computing by providing availability of vast heterogenous resources. In the dynamic envirnment of grid, a schedling decision is still challenging area and it should consider reliability of reources while generating schedule in addition to other objectives. In this paper, we used evolutionary approach to obtain multiple trade-off soltions which minimizes makespan and cost along with the maximization of reliability under the deadline and budget constraints. We apply NSGA-II and ε - MOEA algorithms in order to explore solutions in the Pareto optimal front. Simulation analysis shows that multiple solutions obtained with ε -MOEA approach gives better convergence, uniform diversity in small computation time.
网格计算基础设施通过提供大量异构资源的可用性,作为下一代高性能计算而出现。在电网的动态环境下,调度决策仍然是一个具有挑战性的领域,在生成调度时除了要考虑其他目标外,还要考虑资源的可靠性。在最后期限和预算约束下,采用演化的方法求出最大完工时间和成本最小、可靠性最大的多重权衡方案。我们采用NSGA-II和ε - MOEA算法来探索Pareto最优前沿的解。仿真分析表明,ε -MOEA方法在较小的计算时间内具有较好的收敛性和均匀的多样性。
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引用次数: 6
A hybrid method for 3D face localization 一种三维人脸定位的混合方法
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007065
Qaim Mehdi Rizvi, Qamar Abbas, Hasan Ahmad
Face localization is always a challenging job for a good recognition scheme. If process has to be done for 3D faces, it is quit difficult to localize faces. In this paper we provide a face localization scheme which is based on Average Threshold Value (AVT) and Grayscale Pixel Value Band (GPVB) with the help of Histogram Equalization. We experiment this approach on a synthetic 3D morphable face model of 20 individuals and get 89.51% accuracy among 20 faces with same lighting condition, which is appreciative for further work on same stream.
对于一个好的识别方案来说,人脸定位一直是一项具有挑战性的工作。如果要对三维人脸进行处理,那么人脸的定位是非常困难的。本文提出了一种基于平均阈值(AVT)和灰度像素值带(GPVB)的直方图均衡化人脸定位方案。我们在20个人的合成三维变形人脸模型上进行了实验,在相同光照条件下,20张人脸的准确率达到了89.51%,这对今后在同一流上的研究具有一定的参考价值。
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引用次数: 1
RFID enabled cards skimming: enhanced technology RFID刷卡:增强技术
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007083
J. Kaur, N. Kehar
Radio Frequency Identification (RFID) is an emerging technology to enhance the Bar- code technology. This technology enables the electronic and wireless labelling and identification of objects, humans and animals. The technology can be used for many powerful applications including automatic item tracking, smart home appliances etc. The key idea is to attach each and every item with an RFID tag which can be read by RFID readers via radio communication. RFID technology uses wireless communication in radio frequency bands to transmit data from tags to readers. A reader scans the tag for data and sends the information to a database, which stores the data contained on the tag. RFID networks are getting deployed at a rapid pace and have already entered the public space on a massive scale: public transport cards, the biometric passport, office ID tokens, customer loyalty cards, etc. Although RFID technology offers interesting services to customers and retailers, it could also endanger the privacy of the end-users. The lack of protection mechanisms being deployed could potentially result in a privacy leakage of personal data. It is not a new technology and has been in the public domain for at least 10 years.
射频识别(RFID)是在条形码技术的基础上发展起来的一项新兴技术。这项技术可以对物体、人类和动物进行电子和无线标签和识别。该技术可用于许多强大的应用,包括自动物品跟踪,智能家电等。关键的想法是在每件物品上都贴上RFID标签,RFID阅读器可以通过无线电通信读取标签。RFID技术使用无线电频段的无线通信将数据从标签传输到读取器。阅读器扫描标签以获取数据,并将信息发送到数据库,数据库存储标签中包含的数据。RFID网络正在快速部署,并已大规模进入公共空间:公共交通卡,生物识别护照,办公室ID令牌,客户忠诚度卡等。尽管RFID技术为顾客和零售商提供了有趣的服务,但它也可能危及最终用户的隐私。缺乏保护机制可能会导致个人数据的隐私泄露。这不是一项新技术,至少在10年前就已经进入了公共领域。
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引用次数: 1
Application specific processor vs. microblaze soft core RISC processor: FPGA based performance and CPR analysis 专用处理器与microblaze软核RISC处理器:基于FPGA的性能和CPR分析
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007069
Pallabi Sarkar, R. Sedaghat, A. Sengupta
In all application domains of multimedia, communication and network processing where huge amount of data processing at desired performance and power consumption are a mandatory prerequisite for successful functioning; the system architects have to find a design that fulfills the user requirements of the optimization parameters, while minimizing the cost as much as possible. In this paper a novel FPGA based comparative analysis to compare the cost-performance ratio (CPR) of an Application Specific Processor (ASP) with Microblaze soft core RISC processor is proposed. The paper also proposes an exclusive performance assessment between the FPGA based ASP and Microblaze soft core RISC processor embedded in FPGA. The paper also highlights the design processes of a performance optimized power stringent ASP by converting a computation intensive application into an actual Register Transfer Level (RTL) hardware design as well as the Microblaze soft core RISC processor for a same given application. The experimental results of the FPGA based speedup analysis indicated that for 'N' sets of processed data, the application specific processor performs faster than RISC. Further, it was concluded that speedup of ASP increases proportionally with increase in number of processed data. Moreover, the results of CPR comparison indicated that as the number of units of production increases, the value of CPR for the ASP becomes larger compared to CPR of RISC processor.
在多媒体,通信和网络处理的所有应用领域中,在理想的性能和功耗下进行大量数据处理是成功运作的强制性先决条件;系统架构师必须找到一种既能满足用户对优化参数的要求,又能尽可能降低成本的设计。本文提出了一种基于FPGA的应用专用处理器(ASP)与Microblaze软核RISC处理器的性价比(cost-performance ratio, CPR)对比分析方法。本文还提出了基于FPGA的ASP与嵌入在FPGA中的Microblaze软核RISC处理器之间的排他性性能评估。本文还重点介绍了将计算密集型应用程序转换为实际的寄存器传输级(RTL)硬件设计的性能优化的功耗严格ASP的设计过程,以及针对相同给定应用程序的Microblaze软核RISC处理器。基于FPGA的加速分析实验结果表明,在处理N组数据时,专用处理器的速度比RISC更快。进一步得出ASP的加速随处理数据数量的增加而成比例增加的结论。此外,CPR比较结果表明,随着生产单元数量的增加,ASP的CPR值比RISC处理器的CPR值更大。
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引用次数: 0
Ontology based semantic similarly ranking of documents 基于本体的文档语义相似排序
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007074
S. Thenmalar, T. Geetha, S. Devi
Semantic relatedness measures the degree to which some words or concepts are related, considering possible semantic relationships among them. Semantic relatedness is of great interest in different areas, such as Natural Language Processing, Information Retrieval, or the Semantic Web. This paper proposes policy based ranking of documents, where policy directs which path of the ontology tree is to be considered for semantic computation. An algorithm for ranking documents according to their relevance to a query is used. The given query is expanded based on the ontology concepts and the given polices. As the policy changes, the concept set used for the ranking algorithm varies. Depending on the requirements, using the same ontology, documents can be ranked differently based on the policies which in turn depend on the structure of the ontology. A ranking algorithm calculates the similarity degree of each document with respect to the user query.
语义相关性衡量一些词或概念的关联程度,考虑它们之间可能的语义关系。语义相关性在自然语言处理、信息检索或语义网等不同领域都引起了人们的极大兴趣。本文提出了一种基于策略的文档排序方法,其中策略指导在语义计算中考虑本体树的哪条路径。使用了一种根据与查询的相关性对文档进行排序的算法。根据本体概念和给定策略对给定查询进行扩展。随着策略的变化,排序算法使用的概念集也会发生变化。根据需求,使用相同的本体,可以根据策略对文档进行不同的排序,而策略又依赖于本体的结构。排序算法计算每个文档相对于用户查询的相似度。
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引用次数: 0
AI based supervised classifiers: an analysis for intrusion detection 基于人工智能的监督分类器:入侵检测分析
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007087
G. Kumar, Krishan Kumar
Researchers investigated Artificial Intelligence (AI) based classifiers for intrusion detection to cope the weaknesses of knowledge based systems. AI based classifiers can be utilized in supervised and unsupervised mode. Here, we perform a blind set of experiments to compare & evaluate performance of the supervised classifiers by their categories using variety of metrics. The performance of the classifiers is analyzed using subset of benchmarked KDD cup 1999 dataset as training & Test dataset. This work has significant aspect of using variety of performance metrics to evaluate the supervised classifiers because some classifiers are designed to optimize some specific metric. This empirical analysis is not only a comparison of various classifiers to identify best classifier on the whole and best classifiers for individual attack classes, but also reveals guidelines for researchers to apply AI based classifiers to field of intrusion detection and directions for further research in this field.
研究人员研究了基于人工智能(AI)分类器的入侵检测,以克服基于知识的系统的弱点。基于人工智能的分类器可以用于监督和无监督模式。在这里,我们执行一组盲实验,通过使用各种指标的类别来比较和评估监督分类器的性能。使用基准化的KDD cup 1999数据集子集作为训练和测试数据集,分析了分类器的性能。这项工作在使用各种性能指标来评估监督分类器方面具有重要意义,因为一些分类器被设计为优化某些特定的指标。本文的实证分析不仅比较了各种分类器在整体上的最佳分类器和针对单个攻击类的最佳分类器,而且揭示了基于AI的分类器在入侵检测领域应用的指导方针和该领域进一步研究的方向。
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引用次数: 18
A comparative study of UML tools UML工具的比较研究
Pub Date : 2011-07-21 DOI: 10.1145/2007052.2007053
Heena, Ranjna Garg
In these days many tools appear in market to support building system. Thus choosing the best tools need to know the most important features of it. Today UML consider as a de facto standard in software development and is used in many domains ranging from scientific modeling to business modeling. Here this paper describes the most used UML tools. It defines the main features of each one and then compares between them according to their features. It also defines the criteria for choosing the best tool in building system. Some tools aim at supporting specific life-cycle phases, but they often do not meet basic requirements arising in heterogeneous environments, UML education, early life-cycle phases, or agile processes: hassle-free tool deployment, support for fast model sketching, and flexible graphic export features.. A comparative study, including a selection of these tools, show advantages and disadvantages for each tool.
近年来,市场上出现了许多支持建筑系统的工具。因此选择最好的工具需要知道它最重要的特性。今天,UML被认为是软件开发中的事实标准,并被用于从科学建模到业务建模的许多领域。在这里,本文描述了最常用的UML工具。它定义了每一种的主要特征,然后根据它们的特征进行比较。它还定义了在构建系统时选择最佳工具的标准。一些工具的目标是支持特定的生命周期阶段,但是它们经常不能满足在异构环境、UML教育、早期生命周期阶段或敏捷过程中产生的基本需求:无麻烦的工具部署、对快速模型草图的支持,以及灵活的图形导出特性。一项比较研究,包括对这些工具的选择,显示了每种工具的优点和缺点。
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引用次数: 9
期刊
International Conference on Advances in Computing and Artificial Intelligence
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