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2016 2nd IEEE International Conference on Computer and Communications (ICCC)最新文献

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A short term co-movement detection of financial data 金融数据的短期联合运动检测
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7924661
Kittisak Kerdprasop, Nittaya Kerdprasop
This paper aims to apply statistical and the tree-based data mining techniques to build a model for predicting the movement of Thailand stock price index (SET). Predictors are stock price indexes of Hong Kong Hang Seng (HSI) and Nikkei 225. We also incorporate the index difference from the previous day closing price of HSI and Nikkei as additional predictors. The positive or negative movement of SET compared to the earlier closing index is a binary signal that is constructed and used as a target for our model. The co-movement among SET, HSI, and Nikkei is a short term detection in that it captures intra-day association. The original built model is manipulated to be concise and comprehensible through the application of feature subset selection techniques. We finally obtain a concise tree model to forecast index movement with accuracy as high as 70%.
本文旨在运用统计和基于树的数据挖掘技术,建立一个预测泰国股票价格指数(SET)走势的模型。预测指标是香港恒生指数(HSI)和日经225指数。我们还将指数与前一天恒生指数和日经指数收盘价格的差异作为额外的预测指标。与之前的收盘指数相比,SET的正或负运动是一个二进制信号,它被构建并用作我们模型的目标。SET,恒生指数和日经指数之间的共同运动是一种短期检测,因为它捕获了日内关联。通过应用特征子集选择技术,对原始构建的模型进行简化,使其易于理解。我们最终得到了一个简洁的树状模型来预测索引移动,准确率高达70%。
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引用次数: 0
Target tracking method of Robust Model Predictive Control 鲁棒模型预测控制的目标跟踪方法
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7924732
Zhang Li, Li Shenming, Shi Daixing, Chengyong Liu
Aiming at how to apply the state feedback predictive control algorithm to track the set value, a new RMPC(Robust Model Predictive Control) is proposed for tracking system. Firstly, the conversion method between the output set value and the corresponding steady target state is given. Then,the Luenberge state observer is designed, which has the stability performance index constraints. The parameters of observer is adjusted until it meets the performance index. Thirdly, the output tracking and predictive control algorithm is designed. Finally, a simulation example shows the feasibility of the proposed method.
针对如何应用状态反馈预测控制算法对设定值进行跟踪,提出了一种新的鲁棒模型预测控制方法。首先给出了输出设定值与相应稳态目标状态之间的转换方法;然后,设计了具有稳定性性能指标约束的Luenberge状态观测器。对观测器的参数进行调整,直至达到性能指标。第三,设计了输出跟踪和预测控制算法。最后,通过仿真实例验证了该方法的可行性。
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引用次数: 0
Development of a virtual reality teleconference system using distributed depth sensors 基于分布式深度传感器的虚拟现实远程会议系统的开发
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7924850
Gongjin Lan, Ziyun Luo, Qi Hao
This paper presents a virtual reality (VR) system for the real-time teleconference. We develop a distributed depth sensors system that can reconstruct 3D images of users, and create a panorama image of the conference room in real time. As a result, users at remote locations can have a teleconference in a virtual environment by wearing VR headsets. The contributions of this work include development of a two-level sensor calibration and data fusion scheme; improvement of image quality through the point-to-mesh conversion; development of a distributed sensing and computing architecture. The developed system is advantageous in low cost, scalability for extension, and high performance in VR reconstruction. The developed system has been validated through a number of experiments.
本文介绍了一种用于实时电话会议的虚拟现实系统。我们开发了一个分布式深度传感器系统,可以重建用户的三维图像,实时创建会议室全景图像。因此,在远程位置的用户可以通过佩戴VR耳机在虚拟环境中进行电话会议。这项工作的贡献包括开发了一种双电平传感器校准和数据融合方案;通过点-网格转换提高图像质量;分布式传感和计算体系结构的开发。该系统具有成本低、可扩展性强、可用于虚拟现实重建的高性能等优点。所开发的系统已通过多次实验得到验证。
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引用次数: 20
On k-full-view-coverage-algorithms in camera sensor networks 相机传感器网络中的k-全视场覆盖算法
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7925094
Chaoyang Li, Andrew Rosen, A. Bourgeois
Many security and reliability applications require guaranteed k-coverage of an area at all times. As a result, k-coverage has attracted much attention in the past decade, but most of the previous work on k-coverage has focused on traditional scalar sensors instead of camera sensors. Camera sensors qualify as vector sensors because cameras from different positions can form various views of the target. The sensing quality of camera sensors depends on the angle between the facing direction of the target and the viewing direction of the camera. The concept of full-view coverage [1] is of great significance because it ensures both the detection and recognition of a target. A target experiences full-view coverage if, regardless of the direction it faces, it is always in view of a camera. At the same time, the camera's viewing direction should be sufficiently close to the direction the target faces [1]. This research intends to investigate a special case of k-coverage called k-full-view-coverage. This case is where the target is in an over-deployed camera sensor network and k disjoint subsets of cameras are able to provide full-view coverage of the target. The two proposed algorithms aim to k-full-view cover both a single target and a given area based on equilateral triangle displacement.
许多安全性和可靠性应用都要求始终保证一个区域的k覆盖。因此,在过去的十年中,k-coverage备受关注,但之前关于k-coverage的工作大多集中在传统的标量传感器上,而不是相机传感器上。相机传感器是矢量传感器,因为不同位置的相机可以形成不同的目标视图。摄像机传感器的感知质量取决于目标的面对方向与摄像机的观察方向之间的夹角。全视场覆盖的概念[1]具有重要的意义,因为它保证了对目标的检测和识别。如果一个目标,无论它面对的方向如何,它总是在相机的视野中,那么它就会获得全视野覆盖。同时,摄像机的观测方向应与目标面方向足够接近[1]。本研究拟探讨k-覆盖的一种特殊情况,称为k-全视场覆盖。在这种情况下,目标位于过度部署的相机传感器网络中,k个不相交的相机子集能够提供目标的全视图覆盖。这两种算法的目标是基于等边三角形位移的k全视图覆盖单个目标和给定区域。
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引用次数: 2
Business communication demands and analysis of bandwidth calculation in distribution network 配电网业务通信需求及带宽计算分析
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7925243
Yanbin Song, Dan Jin, Qiang Zhang, Guangxu Liu
With the wide access of new energy electric power, the development of microgrid system, and business carried out in the demand side management and monitoring of electric information, more complex application systems with different functions keep increasing in the smart distribution network. So, it will be very significant to analysis the communication demands and bandwidth calculation method based on typical business characteristics in distribution network. Meanwhile, classify business data according to distribution network typical business features has some referential significance for improving communication bandwidth scheduling mode and distribution network communication capability.
随着新能源电力的广泛接入和微电网系统的发展,以及在电力信息需求侧管理和监控方面的业务开展,智能配电网中越来越多功能各异、更加复杂的应用系统。因此,分析配电网中典型业务特点的通信需求和带宽计算方法具有十分重要的意义。同时,根据配电网典型业务特征对业务数据进行分类,对改进通信带宽调度模式和配电网通信能力具有一定的参考意义。
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引用次数: 0
A Remediable Broadcasting Protocol for Vehicular Ad hoc Network 一种可修复的车载自组织网络广播协议
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7925087
Liang Gui-sen, Ren Chen, Dai Bin, Zhu Shun-zhi
In this paper, a novel cross-layer and distance-based broadcasting protocol called as Remediable Broadcasting Protocol (RBP) has been proposed to avoid the Broadcast Storm in Vehicular Ad hoc Network(VANET). In RBP, some potential forwarders greedily contend to retransmit the packets and the protocol elects the forwarders as quickly as possible without considering the redundant retransmission temporarily. When the winner sends the packet successfully, the retransmissions of other candidate forwarders will be cancelled or the packets which send to the sending queue by the candidate forwarders will be deleted to reduce the broadcast redundancy efficiently. Simulation results show that the protocol is better than others in reachability, saved rebroadcast, dissemination rate and single-hop packet reception ratio.
为了避免车载自组织网络(VANET)中的广播风暴,提出了一种新的跨层、基于距离的广播协议——可补救广播协议(RBP)。在RBP中,一些潜在的转发器贪婪地竞争重传数据包,协议尽可能快地选择转发器,而不考虑临时的冗余重传。当胜出者成功发送数据包时,将取消其他候选转发器的重传或删除候选转发器发送到发送队列的数据包,以有效地减少广播冗余。仿真结果表明,该协议在可达性、节省重播、传播速率和单跳数据包接收率等方面都优于其他协议。
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引用次数: 0
Application of POS technology in fast making DOM from digital aerial images POS技术在航拍数字图像快速生成DOM中的应用
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7924785
L. Cai, Kang Li, Wang Wei, Han Zhixiong
In the era of digital information, digital orthophoto map (DOM) has been considered as the ideal image background for the GIS database of geographic information, how to produce DOM effectively and accurately is an urgent problem to be solved. Aerial photogrammetry assisted by POS system requires only a small amount of ground control points, it has important significance to improve the production efficiency of DOM and to reduce the cost. In this paper, we take the DOM production of Han Cheng area on a scale of 1∶2000 as an example to introduce the technical process and method of DOM production auxiliary by POS system. Through accuracy analysis, it shows that it can reach the required accuracy requirements only through a small number of ground control points by using POS data.
在数字信息时代,数字正射影像图(DOM)被认为是地理信息GIS数据库的理想图像背景,如何有效、准确地生成DOM是一个亟待解决的问题。POS系统辅助下的航空摄影测量只需要少量的地面控制点,对提高DOM的生产效率和降低成本具有重要意义。本文以韩城地区1∶2000规模的DOM生产为例,介绍了POS系统辅助DOM生产的工艺流程和方法。通过精度分析表明,利用POS数据仅通过少量地面控制点即可达到所要求的精度要求。
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引用次数: 0
Moving window recursive filtering for integrated navigation performance enhancement 移动窗口递归滤波集成导航性能增强
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7925003
H. U. Gul, Y. Kai
This paper presents an alternate recursive state estimator of moving horizon estimation as compared to the conventional state estimator of Kalman filtering. The state estimator estimates the position set, velocity set and attitude data of the dynamic aerial vehicle. In the first scenario, the available data for processing are the measurement set from accelerometers assembly, gyroscope triad, and global positioning system (GPS) from the low cost inertial measuring unit (IMU). The GPS position and GPS velocity measurements are the aiding source as well the comparison reference of the computed solution of the dynamic aerial vehicle (DAV). In the second scenario receding window discrete time state estimator, extended for non-linear vehicle navigation application is implemented using the deterministic cost function of least squares, for integrated filtering. The receding data window approach uses the past measurements samples over the horizon as the tuning parameter of the moving horizon state estimator. The moving horizon state estimator is evaluated offline in the numerical experiment including the flight testing data collected. The flight test on a small aerial vehicle with all the sensors, GPS receiver, power systems instrumented onboard is considered for this paper. Matlab platform is used to simulate the noise environment and implementing the algorithms. This paper designed algorithm results reveals that proposed moving horizon estimator is faster in convergence in the presence of large initialization errors, linearization errors and outliers as compared to the reference filter i.e. EKF tested online and offline.
与传统的卡尔曼滤波状态估计器相比,本文提出了一种交替递归的运动水平估计状态估计器。状态估计器对动态飞行器的位置集、速度集和姿态数据进行估计。在第一种方案中,可用于处理的数据是来自加速度计组件的测量集、陀螺仪三位一体和来自低成本惯性测量单元(IMU)的全球定位系统(GPS)。GPS位置和GPS速度测量值是动态飞行器(DAV)计算解的辅助源和比较参考。在第二种情况下,利用最小二乘的确定性代价函数实现了扩展到非线性车辆导航应用的后退窗离散时间状态估计器,用于集成滤波。后退数据窗方法使用水平线上的过去测量样本作为移动水平状态估计器的调谐参数。结合所采集的飞行试验数据,在数值实验中对运动视界状态估计器进行了离线评估。本文考虑了在一架小型飞行器上进行所有传感器、GPS接收机、动力系统仪表的飞行试验。利用Matlab平台对噪声环境进行仿真并实现算法。本文设计的算法结果表明,与参考滤波器(即EKF)在线和离线测试相比,所提出的移动地平线估计器在存在较大初始化误差、线性化误差和离群值的情况下收敛速度更快。
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引用次数: 0
A new method to evaluate the readability of head up display 一种评价平视显示器可读性的新方法
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7924858
Wang Zhi-shan, Li Jie, Feng Chao-kun, Guo Xiao-guang
By researching about PJND (Perceptible Just Noticeable Difference) theory, this paper established an evaluation method of head up display readability based on PJND, combined with the characteristic of head up display. By simulation, this paper got some disciplinary results that how the chromaticity of background, interferences (specular reflection, diffuse reflection and glare) impacts the readability of head up display. Simulation result shows that, the differences between background chromaticity and object chromaticity bigger, head up display needs a lower luminance contrast; when the environment luminance is constant and the interferences increase, we need a bigger luminance contrast to satisfy the readability; when the environment luminance and luminance contrast are all constant, to satisfy the readability, the maximum of the interference is limited.
通过对PJND理论的研究,结合平视显示器的特点,建立了一种基于PJND的平视显示器可读性评价方法。通过仿真,得到了背景色度、干涉(镜面反射、漫反射和眩光)对平视显示器可读性的影响。仿真结果表明,背景色度与物体色度的差异较大,平视显示所需的亮度对比度较低;当环境亮度一定,干扰增大时,需要较大的亮度对比度来满足可读性;当环境亮度和亮度对比都一定时,为了满足可读性,限制干扰的最大值。
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引用次数: 5
Exposing SQL Injection Vulnerability through Penetration Test based on Finite State Machine 基于有限状态机的渗透测试暴露SQL注入漏洞
Pub Date : 2016-10-01 DOI: 10.1109/COMPCOMM.2016.7924889
Lei Liu, Jing Xu, Chenkai Guo, Jiehui Kang, Sihan Xu, Biao Zhang
Penetration test is one of the most used SQL Injection Vulnerability (SQLIV) testing technology. Focused on the insufficiency of test accuracy problem in SQLIV black-box penetration test process, we discuss the limitation of the traditional approaches based on test case library enumerating methods and propose a SQLIV Penetration Test approach based on Finite State Machine (SPT-FSM). The proposed approach establishes FSM based on the states corresponding to different SQLIV penetration test cases, map the statuses of test cases and their relevant responses, and analyzes the transition regularity of the established FSM for the testing of SQLIV with dynamic nature and states transition characteristics. We conduct experiments about the proposed approach and compare it with a popular state-of-the-art benchmarking tool. The experimental results show that the proposed approach can effectively improve the accuracy of SQLIV penetration test by reducing False Negatives (FN) and False Positives (FP).
渗透测试是最常用的SQL注入漏洞(SQLIV)测试技术之一。针对SQLIV黑盒渗透测试过程中测试精度问题的不足,讨论了基于测试用例库枚举方法的传统方法的局限性,提出了一种基于有限状态机(SPT-FSM)的SQLIV渗透测试方法。该方法基于不同SQLIV渗透测试用例所对应的状态建立FSM,映射测试用例的状态及其响应,并分析所建立FSM的转换规律,用于具有动态性和状态转换特征的SQLIV测试。我们对所提出的方法进行了实验,并将其与流行的最先进的基准测试工具进行了比较。实验结果表明,该方法通过减少误报(FN)和误报(FP),可以有效提高SQLIV渗透测试的准确性。
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引用次数: 9
期刊
2016 2nd IEEE International Conference on Computer and Communications (ICCC)
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