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HETEROGENEITY INDEX FOR THE ASSESSMENT OF RELATIONSHIP BETWEEN LAND USE PATTERN AND ROAD TRAFFIC CONGESTION IN APAPA-OWOROSHOKI EXPRESS WAY, LAGOS METROPOLIS
Traffic Congestion Land-Use Heterogeneity Index AHP
2017/7/12
The problem of urban mobility is complicated by traffic delay, resulting from poor planning, high population density and poor condition of roads within urban spaces. This study assessed traffic conges...
STUDY ON RELATION BETWEEN URBAN STRUCTURE AND LAND VALUE FACTORS IN THE TOKYO METROPOLIS USING GEOGRAPHIC INFORMATION SYSTEM (GIS)
GIS Urban Land Use Vegetation Landsat
2016/1/3
The city environmental element was extracted using Geographical Information System (GIS). The influence of the city environmental element was correlated with the formation of land values and analyzed ...
Research on Positioning and Posing of Mobile Mapping in Metropolis
Mobile mapping GPS Doppler measurement Dynamic characteristic analysis
2015/12/17
Mobile mapping, a revolutionary surveying and mapping technology with multi-sensor and 3S (GPS, GIS and RS) integration, is a
typical approach to satisfy the upcoming demand for efficient data captur...
Distributed average consensus with time-varying metropolis weights
Average consensus Distributed computing Metropolis algorithm
2015/8/10
Given a network of processes where each node has an initial scalar value, we consider the problem of computing their average asymptotically using a distributed, linear iterative algorithm. At each ite...
Prevalence and predictors of unsolicited exposure to and involvement in online sexual activites among young Internet users in Lagos metropolis
Online pornography unsolicited exposure online sexual activities
2015/7/23
The study draws empirical evidence from adolescents (aged 10 to 19 years) and young adults (20 to 24 years) who use the Internet in exploring the relationship between two sets of independent variables...
Climate Variation and Malaria Prevalence in Warri Metropolis
Climate Change Malaria Epidemiology Prevalence Warri Metropolis
2013/2/27
This study examined the relationship between climate and prevalence of malaria in Warri metropolis. To achieve this, the study generated data from archival material from the meteorological agency and ...
The Quality and Health Implications of Urban Irrigation Water Used for Vegetable Production in the Accra Metropolis
Irrigation Water Coliform Bacteria Enterobacteriaceae Heavy Metal
2013/3/12
The quality of irrigation water from different sources used by urban farmers in the Accra Metropolis was investigated. These were, tap water stored in dugout, surface water (from stream) and wastewate...
针对目标运动模型不完全的跟踪系统，为解决系统误差配准问题，提出一种基于Metropolis-Hastings抽样的系统误差配准方法。该方法通过系统误差的最大似然估计导出的等效概率平稳函数作为Metropolis-Hastings算法要求构造的概率密度函数，同时给出不同的提议函数来提高系统误差空间分布的全局性。对时变和时不变系统误差情况分别进行了仿真，仿真结果表明,所提方法在考虑系统误差统计特性的同...
基于马尔可夫链蒙特卡罗(Markov chain Monte Carlo, MCMC)方法的α稳定分布参数估计具有良好的性能，但不合适的提议函数常导致算法不收敛或混合性能不好。针对提议函数难以选择的问题，提出了一种基于自适应Metropolis算法的非对称α稳定分布参数估计新方法。该方法利用Markov链的历史信息自动调整提议函数的协方差矩阵，使其不断地逼近目标分布，从而获得更好的估计结果。理论分...
针对目标运动模型不完全的跟踪系统，为解决系统误差配准问题，提出一种基于Metropolis-Hastings抽样的系统误差配准方法。该方法通过系统误差的最大似然估计导出的等效概率平稳函数作为Metropolis-Hastings算法要求构造的概率密度函数，同时给出不同的提议函数来提高系统误差空间分布的全局性。对时变和时不变系统误差情况分别进行了仿真，仿真结果表明,所提方法在考虑系统误差统计特性的同...
针对短采样宽带信号近似最大似然（approximated maximum likelihood,AML）方位估计计算量大的问题，将马尔科夫链〖CD*2〗蒙特卡罗方法与近似最大似然方位估计相结合，提出一种基于MetropolisHastings抽样的近似最大似然方位估计方法（AMLMH）。该方法将AML算法的空间谱函数作为信号的概率分布函数，并利用MetropolisHastings抽样方法...
提出一种基于马尔可夫随机场改进的Ｍｅｔｒｏｐｏｌｉｓ模拟退火算法．该算法中阈值α 的选取优
化了Ｍｅｔｒｏｐｏｌｉｓ算法．根据Ｂｅｙｅｓ理论将图像分割问题转化为最大后验概率求取问题，并给出了参量预测算法．在实验中，将本文提出的算法与ＩＣＭ、传统的Ｍｅｔｒｏｐｏｌｉｓ和Ｇｉｂｂｓ采样模拟退火算法进行比较．结果表明改进的Ｍｅｔｒｏｐｏｌｉｓ算法在图像分割效率和分割准确度上都有明显的提高．通过混凝土Ｃ...
Metropolis蒙特卡罗模拟湿法腐蚀算法研究及应用
Metropolis蒙特卡罗 单晶硅 各向异性 湿法腐蚀
2008/10/23
探讨了Metropolis蒙特卡罗方法模拟硅微加工各向异性湿法腐蚀仿真算法. 在台阶流动(step flow)模型上引入了腐蚀概率方程，确定了蒙特卡罗转移概率. 通过对不同相位晶面(vicinal surface)在掩模下的腐蚀模拟对提出的方法进行了校验分析，解释了蒙特卡罗法处理复杂晶面的原理和过程. 模拟测试中，仿真程序能正确地再现不同晶向腐蚀速率特性以及凸角腐蚀的结构形态，经过与目前报道的元胞...
基于Metropolis遗传算法的并联机器人结构优化设计
大射电望远镜 并联机器人 优化设计 遗传算法 Metropolis准则
2008/7/18
以六自由度Stewart并联机器人的灵巧度为目标函数，以设计空间、每条支腿的最大最小长度之比和虎克铰、球铰的极限摆角为约束条件建立了结构优化模型．将模拟退火算法中的Metropolis准则引入到实值编码遗传算法的选择操作中，产生了Metropolis遗传算法，采用该算法进行了并联机器人结构优化问题的求解．通过与采用标准遗传算法得出的结果比较，证实了Metropolis遗传算法在并联机器人结构优化设...
ON THE AUTOMATION OF THE REGISTRATION OF POINT CLOUDS USING THE METROPOLIS ALGORITHM
Vision Sciences Registration Reconstruction
2015/6/1
Surface measurement of complex geometric objects by means of optical measurement techniques, such as laser scanning or
photogrammetry, requires multiple scans from various stations. The recorded dat...