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An N/4 fixed-point duality quantum search algorithm

Science China(Physics,Mechanics & Astronomy) 2010年第9期53卷 1765-1768页

作者： HAO Liang1,LIU Dan2 & LONG GuiLu1,3 1Key Laboratory for Atomic and Molecular NanoSciences and Department of Physics,Tsinghua University,Beijing 100084,China 2School of Sciences,Dalian Nationalities University,Dalian 116600,China 3Tsinghua National Laboratory for Information Science and Technology,Beijing 100084,China 1. Key Laboratory for Atomic and Molecular NanoSciences and Department of Physics Tsinghua University Beijing 100084 China2. School of Sciences Dalian Nationalities University Dalian 116600 China3. Tsinghua National Laboratory for Information Science and Technology Beijing 100084 China

Here a fixed-point duality quantum search algorithm is *** algorithm uses iteratively non-unitary operations and measurements to search an unsorted *** the marked item is found,the algorithm stops *** algorithm uses a constant non-unitary operator,and requires N/4 steps on average(N is the number of data from the database) to locate the marked *** implementation of this algorithm in a usual quantum computer is also demonstrated.

关键词： fixed-point search algorithm duality quantum computing the N4 duality search algorithm

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Compressive Sensing Method for Damage Detection in Wireless Structural Health Monitoring

Compressive Sensing Method for Damage Detection in Wireless ...

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The 2nd International Conference on Structural Health Monitoring and Integrity Management(第二届国际结构健康监测与完整性管理会议)

作者： JI Sai LI Lu HUANG Li-ping SUN Ya-jie SHEN Jian Education Ministry Demonstration Base of Internet Application Innovation Open Platform(Meteorological Cloud Platform and Application) Nanjing University of Information Science and TechnologyNanjingChina The Aeronautic Key Laboratory of Smart Material and Structure Nanjing University of Aeronautics and AstronauticsNanjingChina Education Ministry Demonstration Base of Internet Application Innovation Open Platform(Meteorological Cloud Platform and Application)Nanjing University of Information Science and TechnologyNanjingChina School of Information and ControlNanjing University of Information Science & TechnologyNanjingChina

In the Wireless Sensor Network(WSN)for structural health monitoring(SHM),usually,we transmit the original acquisition data and exchange the large amounts of data between nodes which consume huge energy,occupy a large amount of communication ***,data compression or data fusion to reduce network traffic and energy loss before transmission is necessary.

关键词： compressive sensing structural health monitoring data compression the measurement matrix OMP algorithm AAPSHM

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Multi-scale Parallel Wind Field Estimation On-line in Flight of UAVs

Multi-scale Parallel Wind Field Estimation On-line in Flight...

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2014中国制导、导航与控制学术会议

作者： Yaohong Qu Lili Yu Qiang Wei Youmin Zhang School of Automation Northwestern Polytechnical UniversityXi''an710072China Department of Institute of Applied MeteorologyBeijing100000China Department of Mechanical & Industrial Engineering & Concordia Institute of Aerospace Design and InnovationConcordia University 1455 de Maisonneuve Blvd.W.MontrealQuebec H3G 1M8Canada

ISBN: (纸本)9781479946983

A method of estimating three dimensional wind field based on the multi-scale parallel algorithm in flight of the UAVs is presented in this *** primary employment is to establish the sideslip angle estimation model and further to obtain the wind field model; a second employment is to research the multi- scale parallel algorithm for estimating the wind field in *** of simulation show that the wind estimation model can accurately recover the real wind and the proposed multi-scale parallel algorithm can reflect multiple frequencies of the wind simultaneously.

关键词： UAV the sideslip angle wind field estimation multi-scale parallel algorithm

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Color Texture Image Inpainting Using the Non Local CTV Model

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Journal of Signal and Information Processing 2013年第3期4卷 43-51页

作者： Jinming Duan Zhenkuan Pan Wangquan Liu Xue-Cheng Tai College of Information Engineering Qingdao University China Department of Computing Curtin University Australia Department of Mathematics University of Bergen Norway

The classical TV (Total Variation) model has been applied to gray texture image denoising and inpainting previously based on the non local operators, but such model can not be directly used to color texture image inpainting due to coupling of different image layers in color images. In order to solve the inpainting problem for color texture images effectively, we propose a non local CTV (Color Total Variation) model. Technically, the proposed model is an extension of local TV model for gray images but we take account of the coupling of different layers in color images and make use of concepts of the non-local operators. As the coupling of different layers for color images in the proposed model will in-crease computational complexity, we also design a fast Split Bregman algorithm. Finally, some numerical experiments are conducted to validate the performance of the proposed model and its algorithm.

关键词： Color Texture Images Image Inpainting NL-CTV Model TV Model The Split Bregman algorithm

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Contribution to Development of Reliability and Optimization Methods Applied to Mechanical Structures

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Applied Mathematics 2013年第1期4卷 19-24页

作者： Siham Ouhimmou Abdelkhalak El Hami Rachid Ellaia Mohamed Tkiouat Laboratory of Mechanics of Rouen National Institute of Applied Sciences Rouen France Laboratory of Mechanics University Hassan II Casablanca Morocco Laboratory of Study and Research in Mathematics Applied Mohammedia School of Laboratory of Study and Research in Mathematics Applied Mohammedia School of Engineers Agdal-Rabat Morocco

In order to take into account the uncertainties linked to the variables in the evaluation of the statistical properties of structural response, a reliability approach with probabilistic aspect was considered. This is called the Probabilistic Transformation Method (PTM). This method is readily applicable when the function between the input and the output of the system is explicit. However, the situation is much more involved when it is necessary to perform the evaluation of implicit function between the input and the output of the system through numerical models. In this work, we propose a technique that combines Finite Element Analysis (FEA) and Probabilistic Transformation Method (PTM) to evaluate the Probability Density Function (PDF) of response where the function between the input and the output of the system is implicit. This technique is based on the numerical simulations of the Finite Element Analysis (FEA) and the Probabilistic Transformation Method (PTM) using an interface between Finite Element software and Matlab. Some problems of structures are treated in order to prove the applicability of the proposed technique. Moreover, the obtained results are compared to those obtained by the reference method of Monte Carlo. A second aim of this work is to develop an algorithm of global optimization using the local method SQP, because of its effectiveness and its rapidity of convergence. For this reason, we have combined the method SQP with the Multi start method. This developed algorithm is tested on test functions comparing with other methods such as the method of Particle Swarm Optimization (PSO). In order to test the applicability of the proposed approach, a structure is optimized under reliability constraints.

关键词： Reliability Methods Probabilistic Transformation Method Finite Element Analysis FEACPTM The Method SQP The Multi Start Method algorithm MSQP Structural Optimization

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Regional Evaluations of the Meteorological Drought Characteristics across the Pearl River Basin, China

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American Journal of Climate Change 2012年第1期1卷 48-55页

作者： Qiang Zhang Mingzhong Xiao Xiaohong Chen Department of Water Resources and Environment Sun Yat-sen University Guangzhou China Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute Sun Yat-sen University Guangzhou China School of Geography and Planning and Guangdong Key Laboratory for Urbanization and Geo-Simulation Sun Yat-sen University Guangzhou China

Regional evaluation of drought characteristics provides critical information for water resource management. In this case, this study attempts to analyze the probability behaviors of drought events of a given severity in the Pearl River Basin and to construct severity-area-frequency curves of drought events. Due to possible impacts of complicated topographical properties and diverse climate types within the Pearl River Basin, the entire Pearl River Basin is subdivided into different homogeneous regions. In general, the Pearl River Basin can be categorized into four homogeneous regions, and the severity-area-frequency analysis results for the short-, medium- and long-term drought episodes within each homogeneous regions indicate stressful challenge for the water resource management in the Pearl River Basin due to the fact that severe droughts usually occur over the entire Pearl River Basin. Meanwhile, the Pearl River Delta will face a higher risk of drought when compared to other regions of the Pearl River Basin in terms of the medium-term drought. The Pearl River Basin is highly economically development and is heavily populated, thus impacts of droughts and related resilience resolutions or policies should be taken into account in the formulation of regional sustainable development of water resources and socio-economy within the Pearl River Basin, China.

关键词： Regional Drought Severity-Area-Frequency Curves Cluster algorithm The Pearl River Basin

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Combined algorithms of Optimal Resource Allocation

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Applied Mathematics 2012年第1期3卷 78-85页

作者： Valery I. Struchenkov Moscow State Technical University of Radio Engineering Electronics and Automation

Under study is the problem of optimum allocation of a resource. The following is proposed: the algorithm of dynamic programming in which on each step we only use the set of Pareto-optimal points, from which unpromising points are in addition excluded. For this purpose, initial approximations and bilateral prognostic evaluations of optimum are used. These evaluations are obtained by the method of branch and bound. A new algorithm “descent-ascent” is proposed to find upper and lower limits of the optimum. It repeatedly allows to increase the efficiency of the algorithm in the comparison with the well known methods. The results of calculations are included.

关键词： Dynamic Programming The Pareto Set Branch and Bound Method The Curse of Dimensionality algorithm “Descent-Ascent”

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一种基于语料特性的聚类算法

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软件学报 2010年第11期21卷 2802-2813页

作者：曾依灵许洪波吴高巍白硕中国科学院计算技术研究所网络重点实验室北京100190 中国科学院研究生院北京100049

为寻求模型不匹配问题的一种恰当的解决途径,提出了基于语料分布特性的CADIC(clustering algorithm based on the distributions of intrinsic clusters)聚类算法.CADIC以重标度的形式隐式地将语料特性融入算法框架,从而使算法模型具备... 详细信息

为寻求模型不匹配问题的一种恰当的解决途径,提出了基于语料分布特性的CADIC(clustering algorithm based on the distributions of intrinsic clusters)聚类算法.CADIC以重标度的形式隐式地将语料特性融入算法框架,从而使算法模型具备更灵活的适应能力.在聚类过程中,CADIC选择一组具有良好区分度的方向构建CADIC坐标系,在该坐标系下统计固有簇的分布特性,以构造各个坐标轴的重标度函数,并以重标度的形式对语料分布进行隐式的归一化,从而提高聚类决策的有效性.CADIC以迭代的方式收敛到最终解,其时间复杂度与K-means保持在同一量级.在国际知名评测语料上的实验结果表明,CADIC算法的基本框架是合理的,其聚类性能与当前领先水平的聚类算法相当.

关键词： CADIC(clustering algorithm based on the distributions of intrinsic clusters) 文本聚类模型不匹配重标度信息检索

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On Stable Reconstruction of the Impact in the System of Ordinary Differential Equations

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Applied Mathematics 2010年第2期1卷 118-123页

作者： Andrei Y. Vdovin Svetlana S. Rubleva The Ural State Forest-Engineering University

Approach to expansion of an opportunity of the reception the guaranteed estimation for a problem of reconstruction the impact within the limits of the dynamical algorithm is considered in the article.

关键词： Dynamical algorithm The Reconstruction of the Impact The Estimation of Accuracy of the algorithm

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A Mathematical Approach to Develop the Distribution of Greenhouse Gas Emissions

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Applied Mathematics 2010年第6期1卷 515-519页

作者： Lev Sergeevich Maergoiz Tatiana Yur’evna Sidorova Rem Grigor’evich Khlebopros Siberian Federal University Krasnoyarsk Research Centre of Siberian Branch of Russian Academy of Sciences

A mathematical algorithm of the distribution of greenhouse gas emissions is proposed as a way to tackle the topical issue of climate change and develop approaches to attaining an agreement among emitters of greenhouse... 详细信息

关键词： Mathematical algorithm Extremal Problems Greenhouse Effect the Principle of Differentiated Responsibilities

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