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STATISTICS: 作品数：859被引量：6220H指数：17; 导出分析报告; 相关领域：经济管理更多>>; 相关作者：夏勍刘瑞江彭丽娟周莹胡志洁更多>>; 相关机构：清华大学南昌大学广西大学西安交通大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>

Comprehensive evaluation method of urban air quality statistics based on environmental monitoring data and its application: 《Journal of Environmental Sciences》2023年第1期500-509,共10页Linglu Qu Fahe Chai Shijie Liu Jingchun Duan Fan Meng Miaomiao Cheng; supported by the National Key Research and Development Program of China(No.2019YFC0214800)。; Air quality monitoring is effective for timely understanding of the current air quality status of a region or city.Currently,the huge volume of environmental monitoring data,which has reasonable real-time performance,...; 关键词：Air quality assessment Air pollution Statistical analysis Environmental monitoring data Big data

Traffic Flow Statistics Method Based on Deep Learning and Multi-Feature Fusion被引量：1: 《Computer Modeling in Engineering & Sciences》2021年第11期465-483,共19页Liang Mu Hong Zhao Yan Li Xiaotong Liu Junzheng Qiu Chuanlong Sun; This work is supported by the Qingdao People’s Livelihood Science and Technology Plan(Grant 19-6-1-88-nsh).; Traffic flow statistics have become a particularly important part of intelligent transportation.To solve the problems of low real-time robustness and accuracy in traffic flow statistics.In the DeepSort tracking algori...; 关键词：Deep learning multi-target tracking kalman filter histogram of oriented gradient traffic flow statistics

Background Error Covariance Statistics of Hydrometeor Control Variables Based on Gaussian Transform被引量：1: 《Advances in Atmospheric Sciences》2021年第5期831-844,共14页Tao SUN Yaodeng CHEN Deming MENG Haiqin CHEN; National Key Research and Development Program of China(Grant No.2017YFC1502102);National Natural Science Foundation of China(Grant No.42075148);Graduate Research and Innovation Projects of Jiangsu Province(Grant No.KYCX20_0910);the High-Performance Computing Center of Nanjing University of Information Science and Technology(NUIST).; Use of data assimilation to initialize hydrometeors plays a vital role in numerical weather prediction(NWP).To directly analyze hydrometeors in data assimilation systems from cloud-sensitive observations,hydrometeor c...; 关键词：hydrometeors control variables data assimilation background error covariance Gaussian transform

Polarization scrambling characteristic analysis based on density of polarization states statistics被引量：2: 《Chinese Optics Letters》2020年第6期15-18,共4页Shangchun Wang Zhengyong Li; This work was supported by the National Natural Science Foundation of China(Nos.11574026 and 11274037).; We report a new method to deeply analyze the scrambling characteristic of polarization scramblers based on density of polarization states(DPS)statistics that makes it possible to describe the DPS distribution in detai...; 关键词：optical communication polarization scrambling density of polarization states

The intensity detection of single-photon detectors based on photon counting probability density statistics: 《Chinese Physics B》2017年第10期249-254,共6页张子静吴龙宋杰赵远; supported by the Fundamental Research Funds for the Central Universities,China(Grant No.AUGA5710056414);the Program for Innovation Research of Science in Harbin Institute of Technology(Grant Nos.PIRS OF HIT A201412 and PIRS OF HIT Q201505);the National Natural Science Foundation of China(Grant No.11675046);the Doctoral Fund of the Ministry of Education of China(Grant No.20122302120003);the Natural Science Foundation of Heilongjiang Province of China(Grant No.A201303);the Postdoctoral Scientific Research Developmental Fund of Heilongjiang Province,China(Grant No.LBH-Q15060); Single-photon detectors possess the ultra-high sensitivity, but they cannot directly respond to signal intensity. Conven- tional methods adopt sampling gates with fixed width and count the triggered number of sampling...; 关键词：single photon detector photon counting low light level

The Survey of Birth Defects Rate Based on Birth Registration System被引量：11: 《Chinese Medical Journal》2015年第1期7-14,共8页Min Yu Zhiguang Ping Shuiping Zhang Yuying He Rui Dong Xiong Guo; Background：To investigate the surveillance trend of birth defects,incidence,distribution,occurrence regularity,and their relevant factors in Xi＇an City in the last 10 years for proposing control measures.Methods：Th...; 关键词：Congenital Abnormalities Neural Tube Defects Perinatal Mortality Quality Control STATISTICS

Blind Signal Processing in Telecommunication Systems Based on Polynomial Statistics: 《American Journal of Computational Mathematics》2014年第3期233-241,共9页Oleg Goryachkin Andrey Berezovskiy; The tendencies of the contemporary communication systems development are characterized by the increasingly stringent requirements for maximum channel utilization. Considering discrete communication systems in channels...; 关键词：Blind Channel Identification Polynomial Cumulants Gobner Basis

Modelling Plant Disease Risk Areas Based on Brazilian Climate Change Scenarios: 《Journal of Environmental Science and Engineering》2011年第3期333-343,共11页M. de C. Alves L.G. de Carvalho E.A. Pozza L. Sanches J.C. de S. Maia; Geosciences and statistics were applied to develop predictive models to study the areas of risk to soybean rust （Phakopsora pachyrhizi Sydow） in soybean （Glycine max L.）, coffee leaf rust （Hemileia vastatrix Berk...; 关键词：Plant disease geographic information systems STATISTICS AGROECOSYSTEMS Brazil.

Segmentation of Bacteria Image Based on Level Set Method被引量：1: 《Chinese Journal of Biomedical Engineering(English Edition)》2008年第4期146-152,共7页WANG Hua CHEN Chun-xiao HU Yong-hong YANG Wen-ge; 863 Program;grant number:2007AA02Z211;Jiangsu Science and Technology Department;grant number:BE2008399;Education of Jiangsu Province;grant number:08KJA530002; In biology ferment engineering,accurate statistics of the quantity of bacteria is one of the most important subjects. In this paper,the quantity of bacteria which was observed traditionally manuauy can be detected aut...; 关键词：bacteria image SEGMENTATION level set method STATISTICS

Steganalytic method based on short and repeated sequence distance statistics被引量：4: 《Science in China(Series F)》2008年第10期1466-1474,共9页WANG GuoXin PING XiJian XU ManKun ZHANG Tao BAO XiRui; the National Natural Science Foundation of China (Grant No.60473022); According to the distribution characteristics of short and repeated sequence （SRS）, a steganaiytic method based on the correlation of image bit planes is proposed. Firstly, we provide the conception of SRS distance ...; 关键词：information hiding STEGANALYSIS statistics of short and repeated sequence distance

STATISTICS