搜索结果: 1-15 共查到“Cross Validation”相关记录20条 . 查询时间(0.173 秒)
CROSS VALIDATION ON THE EQUALITY OF UAV-BASED AND CONTOUR-BASED DEMS
UAV Photogrammetry Digital Elevation Model Topographic surveying Ground Control Points Accuracy analysis
2018/5/15
Unmanned Aerial Vehicles (UAV) have been widely used for Digital Elevation Model (DEM) generation in geographic applications. This paper proposes a novel framework of generating DEM from UAV images. I...
Factor analysis is over a century old, but it is still problematic to choose
the number of factors for a given data set. The scree test is popular but subjective. The best performing objective method...
A problem commonto many areas of psychology is the prediction of a person’s score on one variable from his scores on a numberof other variables.The variable that is to be predicted is called the crite...
Mapping the topsoil pH and humus quality of forest soils in the North Bohemian Jizerské hory Mts. region with ordinary, universal, and regression kriging: cross-validation comparison
Black Triangle digital soil mapping geostatistics map accuracy
2015/3/9
North Bohemia belongs to one of the most heavily industrialized and polluted regions in Europe. The enormous acid deposition which culminated in the 1970s has largely contributed to the accelerated ac...
Cross-validation of Waist-Worn GENEA Accelerometer Cut-Points
PHYSICAL,ACTIVITY ENERGY,EXPENDITURE ACTIVITY,MONITOR ACCELEROMETRY
2017/5/24
The purpose of this study was to determine the classification accuracy of the waist gravity estimator of normal everyday activity (GENEA) cut-points developed by Esliger et al. for predicting intensit...
Estimation Stability with Cross Validation (ESCV)
Lasso model selection parameter estimation prediction
2013/4/27
Cross-validation (CV) is often used to select the regularization parameter in high dimensional problems. However, when applied to the sparse modeling method Lasso, CV leads to models that are unstable...
A universal approximate cross-validation criterion and its asymptotic distribution
AIC cross entropy crossvalidation estimator choice Kullback-Leibler risk model selection ordered categorical observations psychometric tests
2012/6/29
A general framework is that the estimators of a distribution are obtained by minimizing a function (the estimating function) and they are assessed through another function (the assessment function). T...
DTM CROSS VALIDATION AND MERGING: PROBLEMS AND SOLUTIONS FOR A CASE STUDY WITHIN THE HELI-DEM PROJECT
DEM/DTM Georeferencing Multiresolution Accuracy Algorithms Correlation
2014/4/28
Almost all official national cartographic bases in Europe include Digital Terrain Models (DTMs). To perform analyses at the borders
between countries, transnational geographic information is needed:...
Cross-Validation of an Instrument for Measuring Professionalism Behaviors
professionalism assessment self-assessment survey factor analysis cross-validation
2018/6/4
Objective. To cross-validate an instrument to measure behavioral aspects of professionalism in pharmacy students using a rating scale that minimizes ceiling effects.
Methods. Seven institutions colla...
Concentration inequalities of the cross-validation estimator for Empirical Risk Minimiser
Cross-validation generalization error concentration inequality optimal splitting resampling
2010/11/8
In this article, we derive concentration inequalities for the cross-validation estimate of the
generalization error for empirical risk minimizers. In the general setting, we prove sanity-check bounds...
Importance Re-sampling MCMC for Cross-Validation in Inverse Problems
Cross-validation Inverse Importance Re-sampling Model fit Re-use
2009/9/22
This paper presents a methodology for cross-validation in the context of Bayesian
modelling of situations we loosely refer to as iverse problems It is motivated by
an example from palaeoclimatology ...
Cerebral Blood Flow Measurement Using fMRI and PET: A Cross-Validation Study
fMRI PET Cerebral Blood Flow Measurement
2009/9/4
An important aspect of functional magnetic resonance imaging (fMRI) is the study of brain hemodynamics, and MR arterial spin labeling (ASL) perfusion imaging has gained wide acceptance as a robust and...
WEATHER-CROP MODEL SELECTION BY CROSS VALIDATION TEST FOR WINTER WHEAT CULTIVATED IN NORTH-EASTERN POLAND
weather-crop models winter wheat verification Cross Validation test
2009/3/30
The empirical data used in the present research cover the results of winter wheat cultivar experiments carried out over 1971-1995 and the weather observations reported by local meteorological stations...
Physiologic attributes of the luteinizing hormone pulse signal in the human. Cross-validation studies in men
Physiologic attributes luteinizing hormone pulse signal human
2009/2/23
The performance of two new statistically based, independently formulated, endocrine peak detection methodologies (Cluster and Detect) were tested on the same large set of physiologic LH pulsations. ...
Solving Underdetermined Tracer Inverse Problems by Spatial Smoothing and Cross Validation
Tracer Inverse Problems Spatial Smoothing Cross Validation
2008/12/18
Tracer conservation equations may be inverted to determine the flow field and macroscopic diffusion coefficients from known tracer distributions. An underdetermined system leads to an infinite number ...