نتایج جستجو برای: bias correction factors

تعداد نتایج: 1328407  

2004
Bertram Gawronski

Social psychological research has repeatedly shown that perceivers draw correspondent dispositional inferences from observed behaviour even when this behaviourwas highly constrained by situational factors (i.e., the correspondence bias). Even though this phenomenon has been proposed to be multiply determined, the most common explanation is still that perceivers ubiquitously consider situational...

2013
M. Arias - Hidalgo B. Bhattacharya A. E. Mynett A. van Griensven

At present, new technologies are becoming available to extend the coverage of conventional meteorological datasets. An example is the TMPA-3B42R dataset (research – v6). The usefulness of this satellite rainfall product has been investigated in the hydrological modeling of the Vinces River catchment (Ecuadorian lowlands). The initial TMPA3B42R information exhibited some features of the precipit...

A Salehpour Jam M Tabatabaei,

Sediment rating curve (SRC) is a conventional and a common regression model in estimating suspended sediment load (SSL) of flow discharge. However, in most cases the data log-transformation in SRC models causing a bias which underestimates SSL prediction. In this study, using the daily stream flow and suspended sediment load data from Shalman hydrometric station on Shalmanroud River, Guilan Pro...

2001
THOMAS M. SMITH RICHARD W. REYNOLDS

Because of changes in SST sampling methods in the 1940s and earlier, there are biases in the earlier period SSTs relative to the most recent 50 years. Published results from the Met Office have shown the need for historic bias correction and have developed several correction techniques. An independent bias-correction method is developed here from an analysis using nighttime marine air temperatu...

2009
S. C. van Pelt A. H. Weerts

Studies have demonstrated that precipitation on Northern Hemisphere mid-latitudes has increased in the last decades and that it is likely that this trend will continue. This will have an influence on discharge of the river Meuse. The use of bias correction methods is important when the effect of precipitation change on river discharge is studied. The objective of this paper is to investigate th...

Journal: :international journal of endocrinology and metabolism 0
sima masudi department of epidemiology, school of public health, shahid beheshti university of medical sciences, tehran, ir iran parvin yavari department of health and community medicine, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran yadollah mehrabi department of epidemiology, school of public health, shahid beheshti university of medical sciences, tehran, ir iran fereidoun azizi endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran davood khalili prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran; prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran. p o box: 19395-4763. tel: +98-2122432500, fax: +98-2122416264 farzad hadaegh prevention of metabolic disorders research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, ir iran

conclusions using baseline measurements of lipids led to considerable underestimation in the association of these factors with cvd outcome in tlgs. the underestimation increased with time interval between baseline and follow-up measurements for tc and tg. tc had more attenuation on estimated hr due to stronger relation with cvd risk. results by parametric method, based on reexamination three ye...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2009

Journal: :Journal of Applied Meteorology and Climatology 2012

2016
Kyoo il Kim Marc S. Paolella

This paper studies an alternative bias correction for the M-estimator, which is obtained by correcting the moment equations in the spirit of Firth (1993). In particular, this paper compares the stochastic expansions of the analytically-bias-corrected estimator and the alternative estimator and finds that the third-order stochastic expansions of these two estimators are identical. This implies t...

Journal: :Remote Sensing 2018
Jiale Jiang Xusheng Ji Xia Yao Yongchao Tian Yan Zhu Weixing Cao Tao Cheng

The correction of spatial scaling bias on the estimate of leaf area index (LAI) retrieved from remotely sensed data is an essential issue in quantitative remote sensing for vegetation monitoring. We analyzed three techniques, including Taylor’s theorem (TT), Wavelet-Fractal technique (WF), and Fractal theory (FT), for correcting the scaling bias of LAI with empirical models in different functio...

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