نتایج جستجو برای: multiple linear regressions mlr

تعداد نتایج: 1203338  

Journal: :Remote Sensing 2015
Junjie Wang Tiejun Wang Andrew K. Skidmore Tiezhu Shi Guofeng Wu

The characterization of plant nutrients is important to understand the process of plant growth in natural ecosystems. This study attempted to evaluate the performances of univariate linear regression with various vegetation indices (VIs) and multivariate regression methods in estimating grass nutrients (i.e., nitrogen (N) and phosphorus (P)) with canopy hyperspectral reflectance. Synthetically ...

Journal: :Remote Sensing 2022

Two modeling approaches for the estimation of durum wheat yield based on Sentinel-2 data are presented 66 fields across three growing periods. In first approach, a previously developed multiple linear regression model (VI-MLR) vegetation indices (EVI, NMDI) was used. second reflectance all bands several dates during growth periods were used as input parameters in machine learning algorithms, i....

Journal: :eFood 2021

To achieve potential alternatives for hyperuricemia therapeutics, a novel structure-docking energy relationship model was established high-throughput screening inhibitors of xanthine oxidase (XO). Molecular docking performed between XO and 311 natural compounds from 6 traditional Chinese herbs. Then, simulated molecular 63 descriptors by multiple linear regressions (MLR), principal component re...

2014
El Hassane Anouar

Phenolic Schiff bases are known as powerful antioxidants. To select the electronic, 2D and 3D descriptors responsible for the free radical scavenging ability of a series of 30 phenolic Schiff bases, a set of molecular descriptors were calculated by using B3P86 (Becke's three parameter hybrid functional with Perdew 86 correlation functional) combined with 6-31 + G(d,p) basis set (i.e., at the B3...

Journal: :Poultry science 2011
M R Ebadi M Sedghi A Golian H Ahmadi

Accurate knowledge of true digestible amino acid (TDAA) contents of feedstuffs is necessary to accurately formulate poultry diets for profitable production. Several experimental approaches that are highly expensive and time consuming have been used to determine available amino acids. Prediction of the nutritive value of a feed ingredient from its chemical composition via regression methodology ...

2005
Shlomo Yitzhaki

Two regression methods can be interpreted as based on Gini's mean difference (GMD). One relies on a weighted average of slopes defined between adjacent observations and the other is based on minimization of the GMD of the errors. The properties of the former approach are investigated in a multiple regression framework. These estimators have representations that resemble the OLS estimators, and ...

Journal: :Journal of nanotechnology in diagnosis and treatment 2021

Dengue fever is a self-limiting communicable viral disease, transmitted through mosquito bites. Its Case Fatality Grade (CFG) varies across population due to variations in load, immunity of the patient, early diagnosis, and availability high-end treatment facility. This study describes an initial effort automate process CFG predictions. Two established Statistical Machine Learning (SML) algorit...

Evaporation is an essential component of hydrological cycle. Several meteorologicalfactors play role in the amount of pan evaporation. These factors are often related to eachother. In this study, a multiple linear regression (MLR) in conjunction with PrincipalComponent Analysis (PCA) was used for modeling of pan evaporation. After thestandardization of the variables, independent components were...

Journal: :journal of chemical health risks 0
mehdi nekoei department of chemistry, college of basic sciences, shahrood branch, islamic azad university, shahrood, iran

a robust linear quantitative structure-property relationship (qspr) model has been constructed to model and predict the refractivity indices of 101 organic compounds as common halo-derivatives of normal paraffin by application of the structural descriptors combined with multiple linear regression (mlr) method. in the main part of this study, theoretical molecular descriptors were adopted from t...

2014
Ram Avtar Rikie Suzuki Haruo Sawada

Forests play a vital role in terrestrial carbon cycling; therefore, monitoring forest biomass at local to global scales has become a challenging issue in the context of climate change. In this study, we investigated the backscattering properties of Advanced Land Observing Satellite (ALOS) Phased Array L-band Synthetic Aperture Radar (PALSAR) data in cashew and rubber plantation areas of Cambodi...

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