نتایج جستجو برای: multiple linear regression mlr

تعداد نتایج: 1407189  

2016
Md Mahmudur Rahman Prabir Bhattacharya

This paper presents a classification-driven biomedical image retrieval approach by combining multiple visual and text features with a multi-response linear regression (MLR)-based meta-learner. Feature descriptors at different levels of image representation are often in diverse forms and complementary in nature. For modality detection of medical images, the MLR has been proposed as a trainable c...

ژورنال: مواد پرانرژی 2014

Abstract In this work tow simple approaches have been introduced to predict heat of explosion of high energetic materials. experimental heat of explosion of 74 energetic compound were collected from articles and this dataset was separated randomly into two groups, training and prediction sets, respectively, which were used for generation and evaluation of suitable models. Multiple linear reg...

Journal: :caspian journal of chemistry 2012
mohammad hossein fatemi zohreh gharehchahi

in this work, quantitative structure-property relationship (qspr) approaches were used to predict the redox potential of 42 phenolic antioxidants. the structures of all compounds optimized by the am1 semi-empirical method and then a large number of molecular descriptors were calculated for each compound in the data set. subsequently, stepwise multilinear regression was applied to select the mos...

2007
Roman M. Balabin Ravilya Z. Safieva Ekaterina I. Lomakina

Six popular approaches of «NIR spectrum–property» calibration model building are compared in this work on the basis of a gasoline spectral data. These approaches are: multiple linear regression (MLR), principal component regression (PCR), linear partial least squares regression (PLS), polynomial partial least squares regression (Poly-PLS), spline partial least squares regression (Spline-PLS) an...

2017
Jiong Yu Qiaoling Pan Jinfeng Yang Chengxing Zhu Linfeng Jin Guangshu Hao Xiaowei Shi Hongcui Cao Feiyan Lin

BACKGROUND The complete blood count (CBC) is the most common examination used to monitor overall health in clinical practice. Whether there is a relationship between CBC indexes and alanine transaminase (ALT) and aspartate aminotransferase (AST) has been unclear. MATERIAL AND METHODS In this study, 572 normal-weight and 346 overweight Chinese subjects were recruited. The relationship between CB...

2013
Shuyu Guo Robyn M. Lucas Anne-Louise Ponsonby

BACKGROUND Epidemiological evidence suggests that vitamin D deficiency is linked to various chronic diseases. However direct measurement of serum 25-hydroxyvitamin D (25(OH)D) concentration, the accepted biomarker of vitamin D status, may not be feasible in large epidemiological studies. An alternative approach is to estimate vitamin D status using a predictive model based on parameters derived...

2017
Elham Baher Naser Darzi

In this work the electrooxidation half-wave potentials of some Benzoxazines were predicted from their structural molecular descriptors by using quantitative structure-property relationship (QSAR) approaches. The dataset consist the half-wave potential of 40 benzoxazine derivatives which were obtained by DC-polarography. Descriptors which were selected by stepwise multiple selection procedure ar...

Journal: :Earth System Dynamics Discussions 2022

Abstract. The Madden–Julian Oscillation (MJO) is a major source of predictability on the sub-seasonal (10 to 90 d) timescale. An improved forecast MJO may have important socioeconomic impacts due influence both tropical and extratropical weather extremes. Although in last decades state-of-the-art climate models proved their capability for forecasting exceeding 5-week prediction skill, there sti...

The IL-1β play a major role in inflammatory disorders and IL-1β production inhibitors can be used in the treatment of inflammatory and related diseases. In this study, quantitative relationships between the structures of 46 pyridazine derivatives (inhibitors of IL-1β production) and their activities were investigated by Multiple Linear Regression (MLR) technique Stepwise Regression Method (ES-S...

Journal: :iranian journal of oil & gas science and technology 2015
sadegh baziar mohammad mobin gafoori seyed mehdi mohaimenian pour majid nabi bidhendi reza hajiani

klinkenberg permeability is an important parameter in tight gas reservoirs. there are conventional methods for determining it, but these methods depend on core permeability. cores are few in number, but well logs are usually accessible for all wells and provide continuous information. in this regard, regression methods have been used to achieve reliable relations between log readings and klinke...

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