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2009 IEEE Youth Conference on Information, Computing and Telecommunication最新文献

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Robust kernel design for SSD tracker 稳健的内核设计的SSD跟踪器
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382403
Yan Sun, Xi Chen, Qiyong Lu
SSD-based object tracking has shown its improved performance compared with mean-shift and many people have made further improvements based on it. However, how kernels should be designed to better cooperate with SSD metric and Newton-style iteration remains unsolved. Our work is to find out the underlying principles for SSD kernel design, which can help make the tracker more sensitive to the object movement and make the iteration have better onestep performance. We also create a new kernel called “QPeak” to demonstrate our theorems.
与mean-shift相比,基于ssd的目标跟踪表现出了更好的性能,许多人在此基础上进行了进一步的改进。然而,如何设计内核以更好地配合SSD度量和牛顿式迭代仍然没有解决。我们的工作是找出SSD内核设计的基本原理,使跟踪器对目标运动更敏感,使迭代具有更好的一步性能。我们还创建了一个名为“QPeak”的新内核来演示我们的定理。
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引用次数: 2
A review on music source separation 音乐源分离研究进展
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382353
Ruolun Liu, Suping Li
Music source separation is relevant to many applications including automatic music transcription, remixing in studio, content related music indexing etc. Though source separation has been discussed for decades, there is no systematic summarization focuses on music source separation. Different methods and techniques have been proposed from the different point of views based on the researcher's own specialties. With certain advantages and limitations, they are scattering over different conference proceedings, journals of different subjects, reports, dissertations, and chapter of books. One purpose of this work is to collect them together in one place, thus facilitating the future research on this fascinating topic. The other one is to point out the possible directions of future research.
音乐源分离与许多应用相关,包括自动音乐转录,工作室混音,内容相关的音乐索引等。虽然音乐源分离已经被讨论了几十年,但是对于音乐源分离并没有一个系统的总结。根据研究人员的专业,从不同的角度提出了不同的方法和技术。它们分散在不同的会议记录、不同学科的期刊、报告、论文和书籍的章节中,有一定的优点和局限性。这项工作的目的之一是将它们收集在一起,从而促进对这个迷人话题的未来研究。二是指出未来可能的研究方向。
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引用次数: 6
A novel cache mapping scheme for dynamic set-based cache partitioning 一种新的基于动态集的cache分区缓存映射方案
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382458
Tsung Lee, Hsiang-Hua Tsou
In this research, we designed a novel cache mapping scheme for dynamic set-based cache partitioning. The cache mapping scheme facilitates allocation of any non-power-of-2 number of physical cache segments as a private cache to each process. An efficient near-optimal cache partitioning algorithm was designed for capturing working sets of running processes. Transparent cache reconfiguration was designed to enable immediately continuing process execution after cache repartitioning is computed. Experimental results validate its effectiveness in improving the overall hit ratio, the total number of memory accesses, and overall program performance with small number of communications.
在本研究中,我们设计了一种新的基于动态集的缓存分区缓存映射方案。缓存映射方案有助于将任何非2次幂的物理缓存段作为私有缓存分配给每个进程。设计了一种高效的近乎最优的缓存分区算法,用于捕获运行进程的工作集。透明缓存重新配置的目的是在计算缓存重新分区后立即继续执行进程。实验结果验证了该方法在提高整体命中率、总内存访问数和整体程序性能方面的有效性。
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引用次数: 3
Mandarin pitch accent prediction using hierarchical model based ensemble machine learning 基于层次模型的集成机器学习的普通话音高重音预测
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382357
Chongjia Ni, Wenju Liu, Bo Xu
In this study, we combine the Mandarin characteristics with Mandarin acoustic attribute and text information and use hierarchical model based ensemble machine learning to predict Mandarin pitch accent. Our model could make the best of advantages of prosody hierarchical structure and ensemble machine learning. When comparing our model with classification and regression tree (CART), support vector machine (SVM), adaboost with CART at different experimental conditions, the hierarchical model obtains the best results, it can achieve 84.75% accuracy rate to Mandarin read speech. At the same time, we compare our proposed method with previous proposed method at the same training set and test set. There are 2.25% and 0.82% absolute accuracy rate improvements.
在本研究中,我们将普通话特征与普通话声学属性和文本信息结合起来,使用基于层次模型的集成机器学习来预测普通话音高重音。我们的模型可以充分利用韵律层次结构和集成机器学习的优势。将我们的模型与分类回归树(CART)、支持向量机(SVM)、adaboost与CART在不同的实验条件下进行比较,层次模型得到了最好的结果,它对普通话读语音的准确率达到84.75%。同时,在相同的训练集和测试集上,我们将所提出的方法与之前提出的方法进行了比较。绝对准确率分别提高2.25%和0.82%。
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引用次数: 4
Visual simulation of Anti-torpedo system 反鱼雷系统的视觉仿真
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382379
K. Hong, Hong Liang, Chang-sheng Yang
The visual simulation of the Anti-torpedo system is proposed for surface ships defend torpedo. The whole visual real-time process of the surface ships defend torpedo is expounded vividly. 3D models are created with software Multigen Creator. Driving framework programming with Vega Prime API can integrate 3D models, operation rules, special effect and whole scene to a platform system based on visual simulation. Torpedo target echo parameters are estimated accurately by real-time signal processing algorithms, and dynamic data is displayed in the scene of system. As a result, the system realizes real-time simulation of Anti-torpedo and performs well in system test.
针对水面舰艇防御鱼雷的特点,提出了反鱼雷系统的可视化仿真方法。对水面舰艇防御鱼雷的整个可视化实时过程进行了生动的阐述。3D模型是用软件Multigen Creator创建的。使用Vega Prime API编程驾驶框架,可以将3D模型、操作规则、特效和整个场景集成到一个基于视觉仿真的平台系统中。采用实时信号处理算法对鱼雷目标回波参数进行准确估计,并在系统现场显示动态数据。结果表明,该系统实现了反鱼雷的实时仿真,并在系统测试中取得了良好的效果。
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引用次数: 9
Automatic identification of oil sucker pipe using character coding 采用字符编码的抽油管自动识别
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382338
Chengtian Song, Keyong Wang
As there is lack of valid marking of oil sucker pipe, some pipes which exceeding time limits may break off. The character coding method is presented, soft touch flexible marking technology is used to marking characters on pipe, characters can hold for a long time in erosive environment. Each pipe has each code using character coding method. Pipe is automatically identified using CCD and image processing technology, the pipe which exceeding time limits can be identified in time. The dynamic management can be achieved for a single pipe from use, maintenance to abandon using database system.
由于抽油管没有有效的标志,有些管道超过规定时间可能会断裂。提出了字符编码方法,采用软触柔性标记技术在管道上进行字符标记,使字符在腐蚀性环境下保持较长时间。每个管道使用字符编码方法拥有每个代码。采用CCD和图像处理技术对管道进行自动识别,对超过时间限制的管道进行及时识别。使用数据库系统可以实现对单个管道从使用、维护到废弃的动态管理。
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引用次数: 0
A fragile watermarking algorithm for T-Spline surfaces 一种t样条曲面的脆弱水印算法
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382434
Weng Bin, Pan Ri-jing, Yao Zhi-qiang, Xiao Jun, Yang Shan-chao
T-Spline surface is an important parametric surface, which is widely used in entertainment, engineering, science and medicine. A fragile watermarking algorithm is proposed for integrity authentication of T-Spline surfaces. In this algorithm, some points on T-Spline surfaces are selected by a special algorithm, then the watermark is embedded by modifing the selected points, and then the watermarked surfaces is acquired by modifying the control points with constrained optimization method. The experiment results show that the watermark is fragile to many attacks, and the tampered area can be detected. Additionally, when preprocessing is used before watermark extracting, the algorithm can modified to be semi-fragile that is robust to translating, rotating and uniformly scaling.
t样条曲面是一种重要的参数曲面,广泛应用于娱乐、工程、科学和医学等领域。提出了一种用于t样条曲面完整性认证的脆弱水印算法。该算法通过一种特殊的算法选择t样条曲面上的一些点,然后通过修改所选点来嵌入水印,然后通过约束优化方法修改控制点来获得水印曲面。实验结果表明,该水印对多种攻击都是脆弱的,并且可以检测到被篡改的区域。此外,在水印提取之前进行预处理,可以将算法修改为半脆弱的,对平移、旋转和均匀缩放具有鲁棒性。
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引用次数: 2
Challenges to estimate end-to-end available bandwidth in IEEE 802.11-based ad hoc networks 在基于IEEE 802.11的自组织网络中估计端到端可用带宽的挑战
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382455
Haitao Zhao, Shan Wang, Dongtang Ma, Jibo Wei
With the widespread of IEEE 802.11 based ad hoc networks as the extend of wired networks and the importance of knowing available bandwidth to network operators, users, and bandwidth-sensitive applications, available bandwidth estimation in 802.11 based ad hoc networks has been a focus of recent research. However no consensus has arrived on how to precisely measure the available bandwidth in ad hoc networks, which makes all existing approaches are on the stage of experiment and simulation and no standard is agreed yet. We review the state of the art and present a comprehensive analysis of the challenges to estimate available bandwidth in 802.11 based ad hoc networks.
随着基于IEEE 802.11的自组织网络作为有线网络的扩展而广泛使用,以及了解可用带宽对网络运营商、用户和带宽敏感应用的重要性,基于802.11的自组织网络中的可用带宽估计已成为最近研究的焦点。然而,对于如何精确测量自组织网络中的可用带宽,目前还没有达成共识,这使得现有的所有方法都处于实验和模拟阶段,尚未形成统一的标准。我们回顾了目前的技术状况,并对基于802.11的自组织网络中估计可用带宽的挑战进行了全面分析。
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引用次数: 3
Hybrid FCM/ANN indoor location method in WLAN environment 无线局域网环境下FCM/ANN混合室内定位方法
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382454
Xu Yubin, Z. Mu, Ma Lin
WLAN hybrid indoor location method based on fuzzy c-mean clustering (FCM) and artificial neural network (ANN) is proposed in this paper. For any pattern matching based algorithm in WLAN environment, characteristics of received signal strength (RSS) or signal to noise ratio (SNR) to multiple access points (APs) are utilized to establish radio map in the off-line phase, and in the on-line phase, actual two or three dimensional coordinates of the mobile terminals (MTs) are estimated based on the comparison between the new recorded RSS or SNR and fingerprints stored in radio map. Although the feed-forward ANN with three layers is sufficient to approximate any continuous functions to a desired accuracy and optimize any mapping relationship between training inputs and targets, generalization ability is difficult to be guaranteed. So in order to bridge this gap, FCM method is proposed to select the reference points (RPs) affected by the multi-path effect. Based on this method, RSS or SNR recorded at these RPs is modified by the linear regression. Feasibility and effectiveness of this hybrid FCM and ANN method are verified according to the experimental comparison with ANN method without FCM modification.
提出了基于模糊c均值聚类(FCM)和人工神经网络(ANN)的无线局域网混合室内定位方法。在无线局域网环境下,任何基于模式匹配的算法都是在脱机阶段利用接收到的信号强度(RSS)或对多个接入点的信噪比(SNR)特征建立无线地图,在在线阶段,根据新记录的RSS或SNR与无线地图中存储的指纹进行比较,估计移动终端的实际二维或三维坐标。虽然三层前馈神经网络足以将任何连续函数逼近到期望的精度,并优化训练输入与目标之间的任何映射关系,但泛化能力难以保证。因此,为了弥补这一缺陷,提出了FCM方法来选择受多径效应影响的参考点。在此基础上,通过线性回归修正在这些rp处记录的RSS或信噪比。通过与未修改FCM的人工神经网络方法的实验对比,验证了FCM与人工神经网络混合方法的可行性和有效性。
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引用次数: 11
Influence of phase and gainimbalances on recombined signals in LINC transmitters 相位和增益不平衡对LINC发射机中复合信号的影响
Pub Date : 2009-09-01 DOI: 10.1109/YCICT.2009.5382327
Hui Wang, Taifun Liu, Yan Ye, T. Xu
This paper discusses the influence of phase and gain imbalances between two branches of LINC transmitter on the recombined signals. Experiments are carried out on a model of LINC transmitter using a 3 dB Wilkinson RF combiner which is designed with micro-strip line. Then the phase and gain errors that can be tolerated in the LINC transmitter with high efficiency and good linearity are discussed. The signal used in the Validation experiment is a two-carrier WCDMA signal with the sample rate of 61.44 M Sample/s. The Validation results demonstrate that the correction for phase and gain imbalances is necessary in LINC transmitter.
本文讨论了LINC发射机两支路的相位和增益不平衡对复合信号的影响。在采用微带线设计的3db威尔金森射频合成器的LINC发射机模型上进行了实验。然后讨论了在高效率和良好线性度的情况下,LINC发射机所能容忍的相位和增益误差。验证实验中使用的信号为双载波WCDMA信号,采样率为61.44 M sample /s。验证结果表明,对相位和增益不平衡进行校正是必要的。
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引用次数: 0
期刊
2009 IEEE Youth Conference on Information, Computing and Telecommunication
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