نتایج جستجو برای: collinearity

تعداد نتایج: 1351  

2010
Dan Liao Richard Valliant

Survey data are often used to fit linear regression models. The values of covariates used in modeling are not controlled as they might be in an experiment. Thus, collinearity among the covariates is an inevitable problem in the analysis of survey data. Although many books and articles have described the collinearity problem and proposed strategies to understand, assess and handle its presence, ...

Journal: :GigaScience 2017
Robert Bukowski Xiaosen Guo Yanli Lu Cheng Zou Bing He Zhengqin Rong Bo Wang Dawen Xu Bicheng Yang Chuanxiao Xie Longjiang Fan Shibin Gao Xun Xu Gengyun Zhang Yingrui Li Yinping Jiao John F Doebley Jeffrey Ross-Ibarra Anne Lorant Vince Buffalo M Cinta Romay Edward S Buckler Doreen Ware Jinsheng Lai Qi Sun Yunbi Xu

Background Characterization of genetic variations in maize has been challenging, mainly due to deterioration of collinearity between individual genomes in the species. An international consortium of maize research groups combined resources to develop the maize haplotype version 3 (HapMap 3), built from whole genome sequencing data from 1,218 maize lines, covering pre-domestication and domestica...

2014
Lee H. Wurm Sebastiano A. Fisicaro

Psycholinguists are making increasing use of regression analyses and mixed-effects modeling. In an attempt to deal with concerns about collinearity, a number of researchers orthogonalize predictor variables by residualizing (i.e., by regressing one predictor onto another, and using the residuals as a stand-in for the original predictor). In the current study, the effects of residualizing predic...

2008
Hui Zou Hao Helen Zhang HUI ZOU HAO HELEN ZHANG

We consider the problem of model selection and estimation in situations where the number of parameters diverges with the sample size. When the dimension is high, an ideal method should have the oracle property (Fan and Li, 2001; Fan and Peng, 2004) which ensures the optimal large sample performance. Furthermore, the highdimensionality often induces the collinearity problem which should be prope...

Journal: :Remote Sensing 2015
Liang Cheng Yang Wu Lihua Tong Yanming Chen Manchun Li

A new hierarchical method for the automatic registration of airborne and vehicle light detection and ranging (LiDAR) data is proposed, using three-dimensional (3D) road networks and 3D building contours. Firstly, 3D road networks are extracted from airborne LiDAR data and then registered with vehicle trajectory lines. During the registration of airborne road networks and vehicle trajectory line...

1996
Albert Wiedemann

The paper describes a new approach for the generation of architectural orthoimages using digital surface models, based on a CAD model of the object. The model is supposed to consist of surface elements, plane or curved. All surface elements of the CAD model are orthogonally projected onto the reference plane. For each grid element the elevation above or below the reference plane are calculated ...

2014
Zhang Mei Cheng Fang Li Guihua

It is difficult to build an accurate model to predict the dynamic error of CMM by analyzing error sources. An innovative modeling method based on Variance Analysis and Improved Partial Least-square regression (IPLSR) is proposed to avoid analyzing the interaction of error sources and to overcome the multi-collinearity of Ordinary Least-square regression (OLSR). Among many impact factors the mos...

Journal: :IJeC 2015
Ned Kock

We discuss common method bias in the context of structural equation modeling employing the partial least squares method (PLS-SEM). Two datasets were created through a Monte Carlo simulation to illustrate the discussion: one contaminated by common method bias, and the other not contaminated. A practical approach is presented for the identification of common method bias based on variance inflatio...

Journal: :Annals of statistics 2009
Hui Zou Hao Helen Zhang

We consider the problem of model selection and estimation in situations where the number of parameters diverges with the sample size. When the dimension is high, an ideal method should have the oracle property (Fan and Li, 2001; Fan and Peng, 2004) which ensures the optimal large sample performance. Furthermore, the high-dimensionality often induces the collinearity problem which should be prop...

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