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Band selection and classification of hyperspectral images by minimizing normalized mutual information 基于最小化归一化互信息的高光谱图像波段选择与分类
Pub Date : 2012-09-01 DOI: 10.1109/ICMCS.2012.6320192.
E. Sarhrouni, A. Hammouch, D. Aboutajdine
Hyperspectral images (HSI) classification is a high technical remote sensing tool. The main goal is to classify the point of a region. The HIS contains more than a hundred bidirectional measures, called bands (or simply images), of the same region called Ground Truth Map (GT). Unfortunately, some bands contain redundant information, others are affected by the noise, and the high dimensionalities of features make the accuracy of classification lower. All these bands can be important for some applications, but for the classification a small subset of these is relevant. In this paper we use mutual information (MI) to select the relevant bands; and the Normalized Mutual Information coefficient to avoid and control redundant ones. This is a feature selection scheme and a Filter strategy. We establish this study on HSI AVIRIS 92AV3C. This is effectiveness, and fast scheme to control redundancy.
高光谱图像(HSI)分类是一种高技术遥感工具。主要目标是对一个区域的点进行分类。HIS包含100多个双向测量,称为波段(或简单的图像),称为地面真值图(GT)的同一区域。遗憾的是,一些频带包含冗余信息,另一些频带受到噪声的影响,特征的高维使分类精度降低。所有这些波段对于某些应用来说都很重要,但对于分类来说,这些波段中的一小部分是相关的。本文采用互信息(MI)选择相关波段;和归一化互信息系数来避免和控制冗余信息。这是一种特征选择方案和过滤策略。我们建立了对HSI病毒92AV3C的研究。这是一种有效、快速的冗余控制方案。
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引用次数: 7
Design of distributed IMS by classification and evaluation of costs for secured architecture 基于安全体系结构成本分类与评估的分布式IMS设计
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457814
H. Allouch, M. Belkasmi
The core of Next Generation Network(NGN) IP Multimedia subsystem(IMS) based on SIP as mechanism signaling, is an important challenge for supporting data communication services, voice, video, messaging and web-based technologies. In this work we present a novel design of architecture and turns up some challenges of new IMS architecture and security system. This architecture provides a robustness, reliability, scalability and strategy for extension in the future and responds to the security challenges. We introduced the architecture with clustering database HSS and automatic storage of data that give a secure database. This paper give a classification of security in IMS network, modulate the risk in IMS network and our comparison is giving by cost signaling interworking with and without securing Gateway (SEG). We show that there is a tradeoff between the level of increasing system security and the potential cost incurred. we conclude that this architecture is suitable for operators and services providers for the new business models.
下一代网络(NGN)的核心IP多媒体子系统(IMS)以SIP为信令机制,是支持数据通信业务、语音、视频、消息和基于web技术的重要挑战。本文提出了一种新的体系结构设计,并提出了新的IMS体系结构和安全系统所面临的一些挑战。该体系结构为将来的扩展提供了健壮性、可靠性、可伸缩性和策略,并响应了安全挑战。介绍了采用集群数据库HSS和数据自动存储的体系结构,保证了数据库的安全性。本文对IMS网络中的安全性进行了分类,对IMS网络中的风险进行了调制,并对有安全网关(SEG)和无安全网关(SEG)的代价信令进行了比较。我们表明,在增加系统安全性的水平和产生的潜在成本之间存在权衡。我们得出结论,该体系结构适合于运营商和服务提供商的新业务模型。
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引用次数: 3
Modeling of a standard Particle Swarm Optimization algorithm in MATLAB by different benchmarks 通过不同的基准,在MATLAB中对标准粒子群优化算法进行建模
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457817
T. Khan, T. Taj, M. K. Asif, I. Ijaz
Optimization techniques are getting importance in control and power system of sustainable energy technologies. Particle Swarm Optimization is aversatileoptimizing technique. Due to its diversity, it attracts many researchers to modify the algorithm itself and scrutinize different parameters to get precisely optimized results. PSO plays a vital role for finding solutions for continuous optimization problems and also acts as an alternative for global optimization. The designing of standard PSO is defined in this project which has been taken into account by the latest research and developments, and is used as a guideline for performance testing by different functions. The benchmarks we used are Sphere, Ackley, Rosenbrock, Schewfel's 2.26 and Rastrigin. We implemented the original algorithm, and obtained optimized results for every function and plot the graphs against Global best value and Function evaluation.
优化技术在可持续能源控制和电力系统技术中越来越重要。粒子群优化是一种通用的优化技术。由于其多样性,吸引了许多研究人员对算法本身进行修改,并仔细检查不同的参数以获得精确的优化结果。粒子群算法在求解连续优化问题中起着至关重要的作用,也是全局优化的一种替代方法。本项目结合最新的研究和发展,定义了标准PSO的设计,并将其作为不同功能性能测试的指南。我们使用的基准是Sphere、Ackley、Rosenbrock、Schewfel的2.26和Rastrigin。我们实现了原始算法,得到了每个函数的优化结果,并绘制了全局最优值和函数评价图。
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引用次数: 8
Flight coupling model effect based fuzzy control logic 基于模糊控制逻辑的飞行耦合模型效应
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457789
A. Elmelhi
The influences of coupling in a launch vehicle between longitudinal, yaw and roll channels are more serious in the region of powered or active flight phase. Due to large speed, the effect of undesired roll and yaw angles induced from coupling dynamics may cause fluctuations on the performance of a desired command tracking trajectory in the longitudinal motion. In this study, the moment of inertia and kinematic couplings are considered with two objectives in mind. First is to derive their mathematical models and study their affects on the tracking accuracy of the desired pitch angle command. Second, by applying fuzzy proportional derivative controller design, a significant degradation in the desired command tracking due to simultaneous effect of these two types of coupling can be addressed in comparing to the classical design approach. Linear simulation for a typical launch vehicle is carried out at the end of this paper to demonstrate the objectives of this study.
在动力或主动飞行阶段,纵向通道、偏航通道和滚转通道之间的耦合对运载火箭的影响更为严重。由于速度较大,由耦合动力学引起的非期望横摇角和偏航角的影响可能会导致期望指令跟踪轨迹在纵向运动中的性能波动。在本研究中,转动惯量和运动耦合考虑两个目标。首先推导了它们的数学模型,并研究了它们对期望俯仰角指令跟踪精度的影响。其次,通过应用模糊比例导数控制器设计,与经典设计方法相比,可以解决由于这两种类型的耦合同时影响而导致的期望命令跟踪的显着下降。本文最后对某典型运载火箭进行了线性仿真,以验证本文的研究目标。
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引用次数: 0
Maude specification of web service composition and adaptation web服务组合和适配的Maude规范
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457792
Y. Oussalah, N. Zeghib
Web services composition is emerging as a new model for automated interactions among distributed and heterogeneous applications. However the reuse of web services raises composition issues since they present, most of the time, mismatching at different levels such as structural, behavioral and non-functional. The resulted mismatches require adaptation to insure the correct working between web services. In this paper we present a formal specification of operations which enable to compose and adapt services at runtime. This specification is given in Maude language as a logical framework. Thanks to many Maude tools, formal analysis may be easily performed.
Web服务组合正在成为分布式和异构应用程序之间自动交互的新模型。然而,web服务的重用引发了组合问题,因为它们在大多数情况下会在不同级别(如结构、行为和非功能)出现不匹配。需要对结果不匹配进行调整,以确保web服务之间的正确工作。在本文中,我们提出了一种正式的操作规范,可以在运行时组合和调整服务。该规范以Maude语言作为逻辑框架给出。多亏了许多Maude工具,可以很容易地执行形式化分析。
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引用次数: 0
Construction of codes protographes LDPC quasi-cycliques based on an arithmetic progression 基于等差数列的LDPC拟环的编码构造
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457749
I. Diop, S. M. Farssi, Dakar Sénégal, M. Ba, H B Diouf
In this document, we study the construction of codes LDPC quasi cyclic based on a protograph. In addition to their large perimeters, the presented codes take profit from the advantages of bass coding and decoding complexity. The aim of this article is to make an improvement on the implementation of quasi-cyclic LDPC codes. Thus to respect the structure of the basic protograph we use an arithmetic progression to determine in advance the positions of certain nodes of control in the derived graph, which turn to some extent amounts generating a new model while proceeding to an enlarging of the basic protograph. Once this new model conceived we apply the usual techniques to build in an optimal way the derived graph.
本文研究了基于原型的LDPC准循环码的构造。除了它们的大周长外,所提出的编码还利用了低音编码和解码复杂性的优点。本文的目的是对拟循环LDPC码的实现进行改进。因此,为了尊重基本原型图的结构,我们使用等差数列来提前确定派生图中某些控制节点的位置,这在一定程度上相当于生成一个新模型,同时进行基本原型图的扩大。一旦这个新模型被构想出来,我们就可以应用通常的技术以最优的方式构建衍生图。
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引用次数: 0
Searching and ranking researchers by keywords based on author and paper matrix rank 基于作者和论文矩阵排名的关键词搜索和排名研究人员
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457800
Kingo Osaka, Hung-Hsuan Huang, K. Kawagoe
A novice researcher conducting research in a new field, must identify that the preeminent researchers in that field in order to obtain influential papers to refer to. Although some Internet services allow users to search for researchers, these services do not take coauthors and related papers into consideration. In this paper, we propose a new researcher search-and-ranking method that is based on a new matrix called the Author and Paper Matrix (APM). The APM allows coauthor and related-paper references to be embedded as the weight of an APM element. A preliminary evaluation of APM demonstrates that it can help to identify appropriate and influential researchers within a given field.
一个新手在一个新领域进行研究,必须认识到该领域的杰出研究人员,以便获得有影响力的论文来参考。虽然一些互联网服务允许用户搜索研究人员,但这些服务不考虑共同作者和相关论文。本文提出了一种基于作者与论文矩阵(APM)的研究人员搜索与排名方法。APM允许将合著者和相关论文引用作为APM元素的权重嵌入。对APM的初步评价表明,它可以帮助确定特定领域内合适和有影响力的研究人员。
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引用次数: 1
An efficient model for nodes deployment optimization in wireless mesh networks 一种高效的无线网状网络节点部署优化模型
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457796
T. Mountassir, B. Nassereddine, A. Haqiq
Wireless mesh networks have seen a real progress due to their implementation at a low cost. Thus, the planning of such networks presents many challenges for network operators. Our aim in this paper is to provide a new planning solution using a multi-objective optimization approach.
无线网状网络由于其低成本的实现而取得了真正的进步。因此,此类网络的规划对网络运营商提出了许多挑战。本文的目的是利用多目标优化方法提供一种新的规划解决方案。
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引用次数: 1
Combination approach to select optimal countermeasures based on the RORI index 基于RORI指数的组合方法选择最优对策
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457801
G. G. Granadillo, G. Jacob, Hervé Debar, L. Coppolino
As new and more sophisticated computer attacks appear across the Internet, sometimes with unknown dimensions and criticality, the implementation of individual security solutions become less effective and in some cases useless. Instead, a combined approach is required to guarantee an appropriate and cost-effective mitigation of such attacks. Most of the current work suggests the deployment of multiple countermeasures as a single treatment to mitigate the effects of complex attacks. However, the methodology to analyze and evaluate combined solutions is either hardly explained or very complicated to implement. This paper, therefore proposes a simple and well-structured approach to select the optimal combination of countermeasures by maximizing the cost-effectiveness ratio of the countermeasures, this ratio being measured by the Return on Response Investment (RORI) index. A case study is provided at the end of the document to show the applicability of the model over a critical infrastructure process control.
随着新的和更复杂的计算机攻击在互联网上出现,有时具有未知的维度和严重性,单个安全解决方案的实现变得不那么有效,在某些情况下是无用的。相反,需要采取一种综合办法来保证适当和具有成本效益地减轻这种攻击。目前的大部分工作建议部署多种对策作为单一的处理,以减轻复杂攻击的影响。然而,分析和评估组合解决方案的方法要么很难解释,要么实现起来非常复杂。因此,本文提出了一种简单且结构良好的方法,通过最大化对策的成本-效果比来选择最优的对策组合,该比率由响应投资回报率(RORI)指数衡量。在文档的末尾提供了一个案例研究,以显示该模型在关键基础设施过程控制上的适用性。
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引用次数: 12
Video summarization using shot segmentation and local motion estimation 基于镜头分割和局部运动估计的视频摘要
Pub Date : 2012-09-01 DOI: 10.1109/INTECH.2012.6457809
W. Sabbar, A. Chergui, A. Bekkhoucha
The video used by professionals from various fields and the general public is constantly growing, it's important to develop efficient systems to classify and index them. The video summarization is an essential step to construct a system of indexing and searching video, it's the process to create a short video presentation and a global vision on the important scenes of the video. This summarization consist to extract keyframes to present video content, it's similar to extract the keywords from text document. Mainly summarization methods apply clustering algorithms to all video frames. There are computations expensive because they use a dissimilarity matrix which implies a quadratic calculation. In this context, we present a new technique for extracting video summary using an adapted shot segmentation. We apply a hierarchical clustering in each shot to extract the keyframes; the number of these keyframes is proportional to variations and movements in the shot. We propose a local motion estimation, we use a co-occurrence matrix to measure the dissimilarity between shot frames and to take account the motion in the shot.
各个领域的专业人士和公众使用的视频不断增长,开发有效的系统对它们进行分类和索引是很重要的。视频摘要是构建视频索引和检索系统的重要环节,是对视频中的重要场景进行简短呈现和全局视野的过程。该摘要包括提取关键帧来呈现视频内容,类似于从文本文档中提取关键字。摘要方法主要是将聚类算法应用于所有视频帧。计算很昂贵,因为它们使用了一个不同矩阵,这意味着二次计算。在此背景下,我们提出了一种使用自适应镜头分割提取视频摘要的新技术。我们在每个镜头中应用分层聚类来提取关键帧;这些关键帧的数量与镜头中的变化和移动成正比。我们提出了一种局部运动估计方法,我们使用共现矩阵来度量镜头帧之间的不相似性并考虑镜头中的运动。
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引用次数: 19
期刊
Second International Conference on the Innovative Computing Technology (INTECH 2012)
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