Modeling and quantitative structure-property relationship (QSPR) study to predict the acidic constants of some chemical compounds using multiple linear regression and support vector machine

Document Type : Original Article

Authors

• mehdi nekoei ¹
• Abbass Taheri ²
• Majid Mohammadhosseini ²

¹ Islamic Azad University of shahrood branch

² IAU

Abstract

Modeling and studying the structure-property quantitative relationship (QSPR) to predict the acidic constants of some chemical compounds were performed using multiple linear regression (MLR) and support vector machine (SVM). First, the structure of chemical compounds was plotted and a suitable group of descriptors was calculated. Then, the step selection method was used to obtain the best descriptors that were most related to the chemical properties of the compounds. Then, linear multiple linear regression (MLR) model and nonlinear vector machine (SVM) model were used to predict the acid constants of the compounds. Statistical data showed that the SVM method was superior to the MLR method.

Keywords

• Quantitative structure-property relationship
• acidic constant (pKa)
• multiple linear regression
• support vector machine

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