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数据探测
相关语句
  data snooping
     Reliability Analysis and Data Snooping
     可靠性分析与数据探测
短句来源
     Though there is individual error, many methods (data snooping, robust estimate etc.) can deal with it.
     即使有个别的系统误差或粗差存在,在参数回归数据处理中,有许多方法(如数据探测、稳健估计等)能够解决系统误差或粗差问题。
短句来源
     Based on Baard's theory of data snooping, this paper studies the charactri- stics of the reliability matrix in dynamic surveying system.
     本文在巴尔达数据探测理论的基础上,研究了动态测量系统中可靠性矩阵的形式与性质。
短句来源
     The method of data snooping for dyamic surveying system is proposed.
     提出了动态测量系统的数据探测方法。
短句来源
  “数据探测”译为未确定词的双语例句
     Surface Feature Detection Using Multi-temporal SAR Interferometric Data
     多时相SAR干涉测量数据探测地表特征变化
短句来源
     Study on Detecting Fires by Using MODIS Data
     利用MODIS数据探测燃烧的方法研究
短句来源
     By using of RS and GIS, the author firstly study the spatial change of the land use and land cover in Luoning County of Henan province, which is the case of the study, in virtue of TM image from 1987 to 1999, and then analysis the driving mechanism of the LUCC at the level of middle-scale and micro-scale by some methods.
     本文将洛宁县作为案例区,在RS、GIS技术的支持下,借助TM影像数据探测了近十几年来洛宁县土地利用/土地覆被的空间演变过程,然后运用一定的方法分别从中观尺度和微观尺度上分析了该区域LUCC的驱动机制。
短句来源
     Preliminary Study on using MODIS to detect the Red Tide in the Yangtze Estuary and adjacent waters
     利用MODIS遥感数据探测长江口及邻近海域赤潮初步研究
短句来源
     Remote sensing of suspended sediments in China east coastal waters from SeaWiFS data
     运用Sea WiFS遥感数据探测中国东部沿海悬浮泥沙浓度的研究
短句来源
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  相似匹配句对
     The Outlier Detection
     离群数据探测
短句来源
     DATA & INFORMATION
     数据
短句来源
     DATA
     数据
短句来源
     The Real-Time Processing of Meteorological Rocket Sounding Data
     气象火箭探测数据的实时处理
短句来源
     Sleep detection
     睡眠的探测
短句来源
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  data snooping
This leads to higher efficiency in data snooping of geodetic networks.
      
Especially the problem of searching for "significant" results by multiple testing of different subgroups (data snooping) is treated critically.
      
This paper presents a conditionalsequential procedure for the specification search process with linearregression models that minimizes data snooping or data mining.
      
To prevent data snooping, out-of-sample observations were withheld; they were deposited with one individual who did not enter the competition, but had the responsibility of calculating out-of-sample statistics for results submitted by the others.
      
Aside from comforting those of us with money in index funds, this exercise also highlights the dangers of data snooping.
      
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Based on Baard's theory of data snooping, this paper studies the charactri- stics of the reliability matrix in dynamic surveying system. The influence pattern of the gross errors in models of state and observation on the residual errors is discused. The method of data snooping for dyamic surveying system is proposed. It is a theoretical basis for real time reject of gross errors in dynamic surveying system.

本文在巴尔达数据探测理论的基础上,研究了动态测量系统中可靠性矩阵的形式与性质。讨论了状态模型粗差及观测模型粗差对残差的影响关系。提出了动态测量系统的数据探测方法。为动态测量系统实时的剔除粗差打下了理论基础。

In order to obtain reliable adjustment results of densification networks,it is neces-sary to detect the blunders in the coordinates of junction points. In this paper,the coordinatesof junction points are considered as correlated observations with covariance matrices,and thedata snooping method is used to detect the blunders in the coordinates. Based on the theory ofreliability and discernability of extended Gauss-Markov models,the localizability of the blun-ders in the corrlated coordinates is formulated,and...

In order to obtain reliable adjustment results of densification networks,it is neces-sary to detect the blunders in the coordinates of junction points. In this paper,the coordinatesof junction points are considered as correlated observations with covariance matrices,and thedata snooping method is used to detect the blunders in the coordinates. Based on the theory ofreliability and discernability of extended Gauss-Markov models,the localizability of the blun-ders in the corrlated coordinates is formulated,and demonstrated with the examples of typicaldensification networks (including GPS baseline networks). Some suggestions for the design ofdensification networks have been made. This study has also found that the value of a redundan-cy number, usually used as a measure for the reliability,may be beyond the interval [0, 1] forcorrelated observations.

在原有测量控制网(称旧网)的基础上建立同级扩大网或低级加密网(称新网)时,新旧网之间的重合点(称连接点)坐标值粗差的检验是平差前的一个重要环节。本文将连接点坐标视为带协方差阵的观测值,采用数据探测法定位其粗差。借助于 Gauss-Markov模型下两个备选假设检验的理论,推导了连接点相关坐标观测值粗差可定位性基本公式,讨论了各类平面网中连接点坐标观测值粗差的可发现性和可区分性。

:A steel truss bridge approach near a wharf was crashed seriously by a fo-reign ship. In order to evaluate the degree of the damages and to provide a set ofreliable technical data for repairing the bridge and for the damagereparation,precise engineering surveying methods for monitoring the deformations have beenpresented in this paper. Several data snooping approaches, such as the extremedifference method, used for quality examination and for gross error detection andidentification in data processing have also...

:A steel truss bridge approach near a wharf was crashed seriously by a fo-reign ship. In order to evaluate the degree of the damages and to provide a set ofreliable technical data for repairing the bridge and for the damagereparation,precise engineering surveying methods for monitoring the deformations have beenpresented in this paper. Several data snooping approaches, such as the extremedifference method, used for quality examination and for gross error detection andidentification in data processing have also been discussed in detail. Finally a so-called "modified weights", method is introduced to gain an ideal balance of theweights between side and direction observations in the control network used formonitoring deformations.

某海港码头的钢引桥受外轮碰撞,钢桁梁结构受到严重损伤,为精确描述和确定该引桥的操作程度和变形情况,为经济赔偿和工程修复提供可靠的技术数据,需进行高精度的工程测量和严密的变形分析。本文较详细地讨论了该工程的变形观测及其数据处理与变形分析,包括用极差法和数据探测法进行观测值的质量检验和粗差剔除、采用试验修正法确定不同类型观测值的权以及钢桁架梁的局部和整体变形分析等。上述成果已作为重要技术资料用于该工程的受损情况技术鉴定和工程修复方案中,对于类似的海港工程变形观测及其数据处理也具有实际参考意义。

 
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