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2009 International Conference on Computational Intelligence and Software Engineering最新文献

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Subspace Affine Pseudoframes with a Generalized Multiresolution Structure and the Pyramid Decomposition Scheme 具有广义多分辨率结构的子空间仿射伪帧及金字塔分解格式
Pub Date : 2010-04-16 DOI: 10.1109/ICIME.2010.5477499
Xiaofeng Wang, Fengling Zhang
The rise of frame theory in applied mathe-unities is due to the flexibility and redundancy of frames. In this work, the notion of a generalized multiresolution structure of L2(R) is proposed. The definition of multiple pseudoframes for subspaces of L2(R) is given. The construction of a generalized multiresolution structure of Paley-Wiener subspaces of L2(R) is investigated. The sufficient condition for the existence of multiple pseudoframes for subspaces of L2(R) is derived based on such a generalized multiresolution structure. The pyramid decomposition scheme is also obtained.
框架理论在应用统一理论中的兴起是由于框架的灵活性和冗余性。本文提出了广义L2(R)多分辨率结构的概念。给出了L2(R)子空间的多重伪框架的定义。研究了L2(R)的paly - wiener子空间的广义多分辨率结构的构造。基于这种广义多分辨率结构,导出了L2(R)子空间存在多个伪框架的充分条件。并给出了金字塔分解方案。
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引用次数: 0
A Combinatorial Search Method Based on Harmony Search Algorithm and Particle Swarm Optimization in Slope Stability Analysis 基于和谐搜索算法和粒子群优化的边坡稳定性分析组合搜索方法
Liang Li, Shibao Lu, Xuesong Chu, Guangming Yu
The parameters used in harmony search algorithm and particle swarm optimization are found to be of importance to the results, however, there are no theoretical bases or formulae to determine the values of the parameters. A combinatorial method is proposed which combing the harmony search procedure and the particle swarm optimization for the determination of critical slip surfaces of soil slopes. The individuals in the harmony memory are divided into two equal groups, one of which is used to perform the particle swarm optimization algorithm, and the other is adopted in the generation of new harmony in harmony search algorithm, the optimums found by these two groups are compared and communal learning mechanism is formed. In addition, the dynamic adaptation strategy for the determination of values of parameters in these two algorithms is proposed. This combinatorial search algorithm is demonstrated to be efficient and effective for the slope stability analysis. KeywordsArtificial intelligence; Harmony search algorithm; Particle swarm optimization; Slope stability analysis
和声搜索算法和粒子群优化中使用的参数对结果有重要影响,但没有理论依据和公式来确定参数的取值。提出了一种结合和谐搜索法和粒子群优化法确定土质边坡临界滑动面的组合方法。将和声记忆中的个体平等分成两组,其中一组用于执行粒子群优化算法,另一组用于和声搜索算法中新和声的生成,比较两组找到的最优,形成公共学习机制。此外,提出了两种算法中参数取值的动态自适应策略。结果表明,该组合搜索算法在边坡稳定性分析中是有效的。KeywordsArtificial情报;和谐搜索算法;粒子群优化;边坡稳定性分析
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引用次数: 6
Coordination Decision System Based on Multi-Agent 基于多智能体的协调决策系统
Shaohua Wang, F. Bian
Coordination decision is the important problem of E- Government currently. Multi-agent is a problem solving networks by the formation of collaborative among many agents. It can enhance the capacity of the entire system through the task decomposition and task coordination. Mobile-agent, is a software that can autonomous migrate from one host to another host in heterogeneous network, and have interactive function with other agent or resources. Mobile-agent is independent of the specific host and Transport Protocol for the conduct of seamless system integration to provide an extremely favorable conditions. This paper presents a framework of coordination decision system of E-Government based on multi-agent system, then illustrates the the working model and process of entities among the framework,and discuss a example.
协调决策是当前电子政府面临的重要问题。多智能体是通过多个智能体之间形成协作关系来解决问题的网络。通过任务分解和任务协调,可以提高整个系统的能力。移动代理,是一种在异构网络中能够自主地从一台主机迁移到另一台主机,并具有与其他代理或资源交互功能的软件。移动代理独立于特定的主机和传输协议,为进行系统的无缝集成提供了极其有利的条件。提出了一个基于多智能体系统的电子政务协调决策系统框架,阐述了框架中各主体的工作模型和过程,并给出了一个实例。
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引用次数: 0
A New Ocean Acoustic Model in Computational Oceanographic Physics 计算海洋物理中的一种新的海洋声学模型
Zhang Lin, Lianglong Da, Yanxia Zhou
Computational ocean acoustics is an important aspect of oceanographic physics. In this paper, a new ocean acoustic model is developed in computational oceanographic physics, which is called ray-mode-parabolic equation (RMPE) theory. The RMPE solution is expressed in terms of the normal modes in vertical direction and the mode coefficients in horizontal direction. The model is based on the beam-displacement ray- mode (BDRM) theory and the parabolic equation (PE) method. By using the BDRM theory, the normal mode analysis can be processed efficiently and rapidly. The PE method is used to solve the wave equations for mode coefficients. The numerical simulations on sound propagation and the comparison with experimental data from a sloping-bottom area in South China Sea are discussed. The results show that it is efficient and practical to apply this model to solving problems involing underwater sound propagation in range-dependent ocean.
计算海洋声学是海洋物理学的一个重要方面。本文在计算海洋物理中提出了一种新的海洋声学模型,即射线-模式-抛物方程理论。RMPE解在竖直方向上用正态模态表示,在水平方向上用模态系数表示。该模型基于光束位移射线模式(BDRM)理论和抛物方程(PE)方法。利用BDRM理论,可以高效、快速地进行正态分析。采用PE法求解模态系数的波动方程。本文讨论了南海斜底海域声传播的数值模拟,并与实验数据进行了比较。结果表明,将该模型应用于求解距离相关海洋中水声传播问题是有效和实用的。
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引用次数: 1
Blocking Probability Simulation Based on SDMA Systems 基于SDMA系统的阻塞概率仿真
Hailang He, Tongcheng Huang, Bing Xie, Xingliang Li
Space division multiple access(SDMA) is a technique that can be superimposed on traditional multiple access schemes to increase the system capacity, such as frequency division multiple access(FDMA), time division multiple access(TDMA) or code division multiple access(CDMA). SDMA technology employs antenna arrays and multi- dimensional nonlinear signal processing techniques to provide significant increases capacity and quality of many wireless communication systems. Several works have been carried out to examine the improvement in the system capacity provided by SDMA. Based on the theoretical analysis and simulate model, the blocking probability of the proposed scheme is simulated and compared in this paper.
空分多址(SDMA)是一种可以叠加在传统多址方案上以增加系统容量的技术,如频分多址、时分多址或码分多址。SDMA技术采用天线阵列和多维非线性信号处理技术,大大提高了许多无线通信系统的容量和质量。我们进行了几项工作,以检验SDMA提供的系统容量的改善。在理论分析和仿真模型的基础上,对所提出方案的阻塞概率进行了仿真和比较。
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引用次数: 0
Effects of Heating and Storage Conditions on Growth Properties of Mould in Rice 加热和贮藏条件对水稻霉菌生长特性的影响
Qing Xiong, Jian Hu, Si-ming Zhao
the effects of low intensity of heating treatments and storage conditions on growth properties of mould in rice were investigated and a model was obtained to describe the growth properties of mould. The parameters of growth properties of rice mould were obtained in order to provide the information for the control of rice mould. The rice samples were treated with traditional heating and microwave radiation, then were stored in the conditions of 20~35 °C and 75%~97%(Relative Humidity) for 30 days. Rice mould counts were enumerated periodically. There were lag phases for the rice mould during storage. The growth properties of rice mould were fitted to Gompertz equation precisely. The growth rate constant was between 0.015 ~0.6 d and was influenced by heating methods and storage conditions. The growth rate constant of rice mould treated by the two heating methods was lower than that of the control, whereas the amplitude difference between the treatments and control was reduced as the temperature risen, and the value of the mould treated by microwave radiation was bigger than that of traditional heating. The equivalent mould counts increased as the temperature risen, the values of mould treated with heating are higher in comparison with the control and the difference was more obvious when the treated mould were stored in low temperature and low relative humidity.
研究了低强度热处理和贮藏条件对水稻霉菌生长特性的影响,建立了霉菌生长特性的模型。获得了稻霉的生长特性参数,为防治稻霉提供了依据。稻谷样品经传统加热和微波辐照处理后,在20~35℃、75%~97%(相对湿度)条件下保存30 d。定期进行稻霉计数。稻瘟病菌在贮藏过程中存在滞后期。水稻霉的生长特性与Gompertz方程吻合较好。生长速率常数在0.015 ~0.6 d之间,受加热方式和贮存条件的影响。两种加热方式处理的稻霉生长速率常数均低于对照,但随温度升高,处理与对照的幅度差减小,且微波辐射处理的霉菌生长速率值大于传统加热处理。等效霉菌数随温度升高而增加,加热处理后的霉菌数高于对照,低温低相对湿度保存时差异更明显。
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引用次数: 2
MST Segmentation for Content-Based Medical Image Retrieval 基于内容的医学图像检索的MST分割
Yinan Lu, Yong Quan, Zhenhua Zhang, G. Wang
This paper describes an improved segmentation algorithm based on Minimum Spanning Tree (MST) for contentbased image retrieval system. MST segmentation is computationally efficient and captures both global and local image information, but it is prone to incur over-segmentation because of its neighbor system. To address this problem, an adaptive neighbor mode in the improved segmentation is defined by adding links between non-neighbor pixels of an image. The meaningful regions of an image are segmented automatically, and the region-based color features are exacted for the dominant segmented regions. The texture features are exacted using the Gabor filters, and are combined with the color features for retrieval The Experiments are performed using a medical database containing 370 images and the experimental results are shown and described finally. Keywords-MST segmentation; image retrieval; Gabor filter
针对基于内容的图像检索系统,提出了一种基于最小生成树(MST)的改进分割算法。MST分割具有计算效率高、能同时捕获全局和局部图像信息的优点,但由于邻域系统的存在,容易产生过分割问题。为了解决这一问题,通过在图像的非相邻像素之间添加链接来定义改进分割中的自适应邻居模式。自动分割图像中有意义的区域,并对分割后的优势区域提取基于区域的颜色特征。使用Gabor滤波器提取纹理特征,并结合颜色特征进行检索。在包含370张图像的医学数据库中进行了实验,最后给出了实验结果并进行了描述。Keywords-MST分割;图像检索;伽柏过滤器
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引用次数: 6
Three-Layers Role-Based Access Control Framework in Large Financial Web Systems 大型金融Web系统中基于角色的三层访问控制框架
Zhichao Wen, Bo Zhou, Di Wu
there are lots of sensitive and confidential data in financial field, such as credit card number, stock number, fund number and so on. Therefore, top level security requirement is always required in financial systems, where a good access control framework is necessary. Traditional role-based access control frameworks lack of control in data access granularity and often slow down the system, even though it provides an efficient access control model which can restrict users' operation according to their roles. They can hardly meet the requirements in large financial system. This article proposes and implements a Three- Layer Role-based Access Control framework (TL-RBAC) which can perfectly meet the requirements in large financial system. TL-RBAC implements access control in three layers: web pages, operations and data. Coarse-grained access control in web pages layer is used to filter anonymous attacks such as web scan and DoS attacks. Fine-grained access control in operations and data layers guarantee that the user cannot do operations and access data out of his privilege. Performance testing report of the system shows that TL-RBAC meets the performance requirement in terms of system throughput and time per operation. In order to meet security requirements of the financial system without system performance depreciation, this paper extend traditional RBAC model, designs and implements a Three-Layer Role-based Access Control (TL-RBAC). The first layer is coarse-grained access control to web pages implements by SiteMinder, which is an access control production of CA. The second layer is in web application, it makes access control by associating users and their operations. The third layer is fine-grained access control implements through database store procedure. Coarse-grained access control layer is used to filter illegal operation and hackers' attack in large scale to accelerate frequent access control. Fine-grained access control is used to bind user to the data within his privilege. In this case, user can't do any operations beyond his privilege under TL-RBAC framework and also achieves great performances in terms of throughput and time per operation.
金融领域中存在大量的敏感机密数据,如信用卡号、股票号、基金号等。因此,在金融系统中总是需要顶级的安全需求,需要一个良好的访问控制框架。传统的基于角色的访问控制框架虽然提供了一种有效的访问控制模型,可以根据用户的角色来限制用户的操作,但由于缺乏对数据访问粒度的控制,导致系统运行速度变慢。它们很难满足大型金融体系的要求。本文提出并实现了一个三层基于角色的访问控制框架(TL-RBAC),该框架可以很好地满足大型金融系统的访问控制需求。TL-RBAC实现了三层访问控制:网页、操作和数据。网页层的粗粒度访问控制主要用于过滤web扫描、DoS攻击等匿名攻击。操作层和数据层的细粒度访问控制保证了用户不能在权限之外进行操作和访问数据。系统性能测试报告表明,TL-RBAC在系统吞吐量和单次操作时间方面满足性能要求。为了在不降低系统性能的前提下满足金融系统的安全需求,本文扩展了传统的RBAC模型,设计并实现了基于角色的三层访问控制(TL-RBAC)。第一层是对网页的粗粒度访问控制,由SiteMinder实现,SiteMinder是CA的一个访问控制产品。第二层是在web应用中,通过关联用户及其操作进行访问控制。第三层是通过数据库存储过程实现的细粒度访问控制。粗粒度访问控制层用于过滤非法操作和大规模黑客攻击,加快频繁访问控制。细粒度访问控制用于将用户绑定到其权限范围内的数据。这种情况下,在TL-RBAC框架下,用户不能进行任何超出其权限的操作,并且在吞吐量和每次操作时间方面也取得了很好的性能。
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引用次数: 8
MSD Addition by Ternary Logic Optical Processor 三元逻辑光处理器的MSD加法
Mei Li, Huacan He, Yi Jin, Shu-bao Liu
Ternary logic optical processor which is completed according to Decreased-Radix Design Principle (DRDP) can construct all dualistic ternary logic operators (add up to19683 kinds). There is no carry propagation of addition of Modified Signed Digit (MSD) representation and the computation only needs several dualistic ternary logical transformations. Thus, MSD addition completed by ternary logic optical processor can be fully-parallel and no carry. The principle, working steps and experiment results of this new method are discussed. Keywords-parallel additon; MSD; ternary logic optical processor; DRDP
根据减少基数设计原理(DRDP)完成的三元逻辑光处理器可以构造所有的二元三元逻辑算子(共19683种)。修正符号数(MSD)表示的加法没有进位传播,计算只需要几个二元三元逻辑变换。因此,由三元逻辑光处理器完成的MSD加法可以实现全并行和无进位。讨论了该方法的原理、工作步骤和实验结果。Keywords-parallel已有房内;默沙东公司;三元逻辑光处理机;DRDP
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引用次数: 0
An Impact Study of Trust between Entrepreneur and Venture Capitalist on Entrepreneurial Performance 企业家与风险投资人信任对创业绩效的影响研究
Chao Yi
According to the foreign classical models of the trust development, the paper firstly explores the dynamic development model of the trust between the entrepreneur and the venture capitalist; secondly, the paper proposes two kinds of the trust using way: the exploiting and the exploratory; finally, the paper empirically examines the positive impact of the trust’s development and the using way on entrepreneurial performance through the data investigation, which has drawn the corresponding conclusion. Keywords-entrepreneur;venture capitalist; trust; entrepreneurial performance
在借鉴国外信任发展经典模型的基础上,本文首先探讨了企业家与风险投资人之间信任的动态发展模型;其次,提出了两种信任利用方式:开发型和探索型;最后,本文通过数据调查实证检验了信托的发展和使用方式对创业绩效的积极影响,并得出了相应的结论。Keywords-entrepreneur;风险投资家;信任;创业绩效
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引用次数: 0
期刊
2009 International Conference on Computational Intelligence and Software Engineering
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