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2013 IEEE Recent Advances in Intelligent Computational Systems (RAICS)最新文献

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Microsegmenting: An approach for precise distance calculation for GPS based its applications 微分割:基于GPS应用的精确距离计算方法
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745496
A. Biswas, Goutham Pilla, B. R. Tamma
Onroad distance calculation between two geographical points is an integral part of various Global Positioning System (GPS) based Intelligent Transportation Systems (ITS) applications. We have found that mere calculating the distance between two geographical points without giving importance to geographical information of the road, such as curves can lead to under estimation of the distance calculated, cause of which we refer to as the “ Displacement problem “. In this paper, we propose the methodology of Microsegmenting to overcome the Displacement Problem. To validate the proposed method and to quantify improvement over the existing technique of distance calculation we conduct experiments using real-world GPS traces from cities: Hyderabad, India and Chicago, USA. The experimental results show a significant improvement in distance estimation over existing technique. The significance of the improvement can be visualized by the fact that, theoretically this improvement in distance calculation can improve the travel time prediction, an important ITS applications, by an average of 22 seconds (approx.) between each pair of traces.
两个地理点之间的道路距离计算是各种基于全球定位系统(GPS)的智能交通系统(ITS)应用的一个组成部分。我们发现,仅仅计算两个地理点之间的距离,而不重视道路的地理信息,如曲线,会导致计算距离的估计不足,我们称之为“位移问题”。在本文中,我们提出了微分割的方法来克服位移问题。为了验证所提出的方法并量化现有距离计算技术的改进,我们使用来自印度海德拉巴和美国芝加哥等城市的真实GPS轨迹进行了实验。实验结果表明,与现有的距离估计技术相比,该方法在距离估计方面有了显著的改进。这种改进的意义可以通过以下事实直观地体现出来:理论上,距离计算的这种改进可以提高旅行时间预测,这是一个重要的ITS应用,每对走线之间平均提高22秒(大约)。
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引用次数: 12
M2M solutions — Design challenges and considerations M2M解决方案-设计挑战和考虑因素
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745475
Sukriti Jalali
Within the next decade, the major portion of Internet traffic is forecast to come from devices connected to the Internet. Ericsson™ envisions tens of billions of internet-connected devices, with 50 billion connections by 2020[1]. The volume of traffic, the kind of data and the level of meaningful interactions this will generate is something that the technology universe as well as the business world has never encountered till now. This is also poised to create tremendous challenges for enterprise architects, business analysts, design engineers and enterprise users. This paper provides insights into Machine to Machine (M2M) communication - its growth factors, possible solution areas and high level architecture. The paper delves a bit deeper into various entities involved in M2M design and development. It covers key points that architects and designers should keep in mind for effective deployment.
在未来十年内,互联网流量的主要部分预计将来自连接到互联网的设备。爱立信™预计,到2020年,将有数百亿的互联网连接设备,连接数将达到500亿[1]。这将产生的流量、数据种类和有意义的互动水平,是科技界和商界迄今为止从未遇到过的。这也给企业架构师、业务分析师、设计工程师和企业用户带来了巨大的挑战。本文提供了对机器对机器(M2M)通信的见解-其增长因素,可能的解决方案领域和高层架构。本文对M2M设计和开发中涉及的各种实体进行了更深入的研究。它涵盖了架构师和设计人员应该牢记的关键点,以便进行有效的部署。
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引用次数: 14
Probing of geospatial stream data to report disorientation 探测地理空间流数据以报告迷失方向
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745478
M. Saravanan, D. Sundar, V. S. Kumaresh
Probing of data streams in a distributed environment for observation is considered to be one of the prime activities of Big Data Handlers. The notion of big data is efficiently leveraged through popular social networking sites such as Facebook, Twitter, LinkedIn, etc. Twitter is a most popular micro-blogging website enriched with many research issues. The users are allowed to put their ideas and thoughts in the form of messages called “Tweets” in twitter. In this study, the purpose of gathering the location specific tweets is to understand and surface the insights which are related to human dynamics. We have employed the data stream mining approach to process geo-spatial time invariant tweets in a distributed real-time environment to gain more useful information. Topic models were explored for identifying a particular topic of interest or to extract prudent information from the stream data. Our concentration is on the evolution of different topics at different places, a location-topic matrix is formed for the set of topics observed as most predominant for the specific locations. Then a user graph is generated for the volatile topics that help in analyzing the users who have tweeted or has been re-tweeted on a specific topic the most. From the properties of the generated graph, the disorientation of the topics is reported in the given locations by the use of a sentimental analysis that deems the topic discussed as positive or negative. These analyzes have shown that there is a possibility to outwit the useless and most rampant negative issues spread mutely on a specific location which later creates unnecessary panic to the society.
在分布式环境中探测数据流进行观察被认为是大数据处理程序的主要活动之一。大数据的概念通过流行的社交网站如Facebook、Twitter、LinkedIn等得到有效利用。Twitter是一个最受欢迎的微博网站,它丰富了许多研究问题。用户可以把他们的想法和想法以消息的形式在twitter上被称为“Tweets”。在本研究中,收集特定位置的推文的目的是了解和揭示与人类动态相关的见解。我们采用数据流挖掘方法在分布式实时环境中处理地理空间时不变推文,以获得更多有用的信息。主题模型用于识别感兴趣的特定主题或从流数据中提取谨慎的信息。我们关注的是不同地点的不同主题的演变,对于特定地点观察到的最主要的主题集,形成了一个位置-主题矩阵。然后生成一个不稳定话题的用户图,帮助分析在特定话题上发推或被转发最多的用户。从生成的图的属性来看,通过使用情感分析(认为讨论的主题是积极的或消极的),在给定的位置报告主题的迷失方向。这些分析表明,有可能智取无用和最猖獗的负面问题,无声地在特定地点传播,然后给社会造成不必要的恐慌。
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引用次数: 8
Directionally adaptive despeckling of SAR image using interscale dependence 基于尺度间相关性的SAR图像方向自适应去斑
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745470
R. Sethunadh, T. Thomas
Directionlet Transform (DT) has gained popularity over the last few years as an anisotropic, critically sampled and perfect reconstruction transform with directional vanishing moments along any two directions. The performance of despeckling schemes based on multi-resolution analysis can be improved significantly by taking into account the multi-scale correlation among the transform coefficients. This paper proposes a novel directionally adaptive de-speckling algorithm for SAR images by taking into account the statistical inter scale dependency of Cauchy-Gaussian modeled DT coefficients. The effectiveness of the proposed scheme is illustrated by comparing it with other similar schemes.
Directionlet变换(DT)作为一种各向异性、严格采样和具有沿任意两个方向的方向消失矩的完美重建变换,在过去几年中得到了广泛的应用。考虑变换系数之间的多尺度相关性,可以显著提高基于多分辨率分析的去斑方案的性能。本文提出了一种考虑高斯高斯模型DT系数的尺度间相关性的SAR图像方向自适应去斑算法。通过与其他类似方案的比较,说明了该方案的有效性。
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引用次数: 0
A new built in self test pattern generator for low power dissipation and high fault coverage 一种新型内置自检图发生器,低功耗,高故障覆盖率
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745440
C. Reddy, V. Sumalatha
The Built in Self Test (BIST) scheme proposed here is a combination of two test pattern generators. One is Low Transition Random Test Pattern Generator (LT-RTPG) and the other is Arithmetic based 3-weighted Random Test pattern Generator (A-3WRTPG). The LT-RTPG aims at detection of easy to detect faults which are prone to pseudo random patterns and reduction of power consumption during BIST activity. The LT-RTPG uses Bit-Swapping Linear Feedback Shift Register (BS-LFSR) for generation of pseudo random sequences. The BS-LFSR focuses on reducing the transitions in generated test pattern and there by reduces the power consumption during BIST activity. The A-3WRTPG aims at detection of pattern resistant faults that are left undetected by LT-RTPG and thereby increases the detection of fault probability. The A-3WRTPG uses flip flops and adders for carrying out arithmetic operations and modified form of weighted algorithm to achieve complete fault coverage. The weighted sets computed by A-3WRTPG comprising three weights, namely 0, 1, and 0.5 have been successfully utilized so far for test pattern generation, as a result in both low testing time and low consumed power. The proposed BIST can significantly reduce switching activity during BIST while achieving 100% fault coverage for all ISCAS'89 benchmark circuits.
本文提出的内建自检(BIST)方案是两个测试模式生成器的组合。一种是低转移随机测试图发生器(LT-RTPG),另一种是基于算法的3加权随机测试图发生器(A-3WRTPG)。LT-RTPG旨在检测易检测的伪随机模式故障,并降低BIST活动期间的功耗。LT-RTPG使用比特交换线性反馈移位寄存器(BS-LFSR)生成伪随机序列。BS-LFSR侧重于减少生成测试模式中的转换,从而降低BIST活动期间的功耗。A-3WRTPG旨在检测LT-RTPG未检测到的模式抗性故障,从而提高故障的检测概率。A-3WRTPG采用触发器和加法器进行算术运算,并采用改进形式的加权算法实现完全故障覆盖。目前,a - 3wrtpg计算的由0、1、0.5三个权重组成的加权集已成功用于测试模式生成,测试时间短,功耗低。所提出的BIST可以显著减少BIST期间的开关活动,同时实现所有ISCAS'89基准电路100%的故障覆盖率。
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引用次数: 9
Reconfigurable ultrasonic beamformer 可重构超声波束形成器
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745469
C. Byju, R. Murali, S. Vishnu, Jose Joji
This paper describes the hardware implementation of real time configurable, electronically steered, transducer array for ultrasonic applications. In a transducer array radiation pattern of each of the elements are superimposed to get the resultant radiation pattern of the array. By applying progressive phase delay (time delay) to the driving signal of each of the transducer array elements the radiation beam of the transmitter can be steered to the intended direction. The implementation includes an graphical user interface for configuring the steering angle and other waveform parameters such as amplitude, frequency, modulation scheme etc. in real time. These parameters are communicated to the Digital Signal Processor (DSP) via. Serial Peripheral Interface (SPI). The programmable delay and waveform generation are done by Field Programmable Gate array (FPGA) so that the steering resolution is high. This implementation find application in radar systems where the beam steering angle needs to be dynamically varied on real time without any movement of mechanical masses.
本文介绍了用于超声应用的实时可配置、电子控制、换能器阵列的硬件实现。在换能器阵列中,每个元件的辐射方向图被叠加以得到阵列的合成辐射方向图。通过对每个换能器阵列元件的驱动信号施加递进相位延迟(时间延迟),可以将发射机的辐射束转向预定方向。该实现包括一个图形用户界面,用于实时配置转向角度和其他波形参数,如幅度、频率、调制方案等。这些参数通过数字信号处理器(DSP)通信。串行外设接口(SPI)。可编程延迟和波形生成由现场可编程门阵列(FPGA)完成,从而提高了转向分辨率。在雷达系统中,波束转向角需要在没有任何机械质量运动的情况下实时动态变化。
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引用次数: 0
Image segmentation by intelligent clustering technique 基于智能聚类技术的图像分割
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745486
Subarna Sinha, S. Deb
Image segmentation based on clustering techniques still remains a challenging task. The aim of clustering is to generate homogeneous groups of data. In this paper, we present bio-inspired formulation to perform image segmentation. Specifically, we used the Bird flocking algorithm that uses the concepts of a flock of agents, e.g. birds moving together in a complex manner with simple local rules. Each bird representing one data, move with the aim of creating homogeneous groups of data in a two dimensional environment producing a spatial distribution that can be used to solve a particular computational problem. These characteristics have been used to solve the task of segmentation of images which optimize the partition of image data into homogenous regions.
基于聚类技术的图像分割仍然是一个具有挑战性的任务。聚类的目的是生成同构的数据组。在本文中,我们提出了仿生配方来执行图像分割。具体来说,我们使用了Bird flocking算法,该算法使用了一群代理的概念,例如,鸟类以简单的局部规则以复杂的方式一起移动。每只鸟代表一个数据,移动的目的是在二维环境中创建同质的数据组,产生可用于解决特定计算问题的空间分布。这些特征已被用于解决图像分割任务,即优化图像数据划分为均匀区域。
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引用次数: 2
Lossless hyperspectral image compression based on prediction 基于预测的无损高光谱图像压缩
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745472
A. Mamatha, Vipula Singh
Hyperspectral imaging technology plays an important role in the field of remote sensing applications. Hyperspectral images exhibit significant spectral correlation whose exploitation is crucial for compression. In this paper an efficient method for Hyperspectral image compression is presented based on differential prediction with very low complexity. The proposed scheme consists of a difference coder, two predictors and a Huffman codec. The processing of the pixels varies depending on their position in the image. The resulting difference between the predicted and the actual pixel values are encoded into variable-length codewords using the Huffman codebook. The performance of the proposed algorithm has been evaluated on AVIRIS images. The experimental results show that with a Compression Ratio (CR) up to 4.14, the proposed method provides a competitive performance with comparison of JPEG2000, JPEG-LS and the OCC schemes.
高光谱成像技术在遥感领域具有重要的应用价值。高光谱图像具有显著的光谱相关性,其利用对压缩至关重要。本文提出了一种基于差分预测的高效、低复杂度的高光谱图像压缩方法。该方案由一个差分编码器、两个预测器和一个霍夫曼编解码器组成。像素的处理取决于它们在图像中的位置。预测和实际像素值之间的结果差异使用霍夫曼码本编码成可变长度的码字。在AVIRIS图像上对该算法的性能进行了评价。实验结果表明,该方法的压缩比(CR)高达4.14,与JPEG2000、JPEG-LS和OCC方案相比具有一定的竞争力。
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引用次数: 1
Bandwidth-aware data placement scheme for Hadoop Hadoop的带宽感知数据放置方案
Pub Date : 2013-12-01 DOI: 10.1109/RAICS.2013.6745448
T. P. Shabeera, S. D. Madhu Kumar
We are living in a data rich era. The size of the data is increasing exponentially. Social networking applications, Scientific experiments, etc. are the major contributors of Big Data. The data can be structured, semi-structured or unstructured. Big Data management solutions can be implemented in-house in the organization or it can be stored in cloud. Whether it is stored in-house or in cloud, the placement of data is very important. In general, users demand the availability of data whenever they request for it. There are many parameters that effect the data retrieval time in Hadoop. Among them, this paper pays attention to the available bandwidth. To minimize the data retrieval time, the data must be placed in a DataNode which has the maximum bandwidth. We have proposed a solution for bandwidth-aware data placement in Hadoop by periodically measuring the bandwidth between clients and DataNodes and placing the data blocks in DataNodes that have maximum end-to-end bandwidth.
我们生活在一个数据丰富的时代。数据量呈指数级增长。社交网络应用、科学实验等是大数据的主要贡献者。数据可以是结构化、半结构化或非结构化的。大数据管理解决方案可以在组织内部实施,也可以存储在云中。无论是存储在内部还是存储在云中,数据的放置都非常重要。一般来说,用户在请求数据时都需要数据的可用性。在Hadoop中,有许多参数会影响数据检索时间。其中,本文关注的是可用带宽。为了减少数据检索时间,必须将数据放在带宽最大的DataNode中。我们提出了一个Hadoop中带宽感知数据放置的解决方案,通过定期测量客户端和datanode之间的带宽,并将数据块放置在具有最大端到端带宽的datanode中。
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引用次数: 15
Example based super-resolution using fuzzy clustering and sparse neighbor embedding 基于实例的基于模糊聚类和稀疏邻居嵌入的超分辨率
Pub Date : 2013-12-01 DOI: 10.1007/978-81-322-1000-9_6
A. K. Nejiya, M. Wilscy
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引用次数: 2
期刊
2013 IEEE Recent Advances in Intelligent Computational Systems (RAICS)
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