A modified binary particle swarm optimization with a machine learning algorithm and molecular docking for QSAR modelling of cholinesterase inhibitors
| Autor: | Amin Rahati, E. Shamsi, Effat Dehghanian |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Quantitative structure–activity relationship
Computer science Catfish effect Decision tree Binary number Quantitative Structure-Activity Relationship Bioengineering Machine learning computer.software_genre Transfer function Ranking (information retrieval) Machine Learning Drug Discovery Linear regression business.industry Reproducibility of Results General Medicine Support vector machine Molecular Docking Simulation Butyrylcholinesterase Acetylcholinesterase Molecular Medicine Artificial intelligence Cholinesterase Inhibitors business computer Algorithm Databases Chemical |
| Zdroj: | SAR and QSAR in environmental research. 32(9) |
| ISSN: | 1029-046X |
| Popis: | The acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) inhibitors play a key role in treating Alzheimer's disease. This study proposes an approach that integrates a modified binary particle swarm optimization (PSO) with a machine learning algorithm for building QSAR models to predict the activity of inhibitors for AChE and BuChE enzymes. More precisely, it uses a transfer function to convert the continuous search space of PSO to binary. Furthermore, it utilizes the concepts of catfish effect and chaotic map to improve exploration ability in searching for an optimum subset of descriptors for QSAR model constructions. Then, through a statistical method, it employs a machine learning algorithm to evaluate the fitness value of each candidate subset of features. Different combinations of four transfer functions with four machine learning algorithms, including K-nearest neighbour, multiple linear regression, support vector machine, and regression tree, were used to build several variants of the proposed algorithm. QSAR models constructed by each version were verified by internal and external validations. The best variants were selected based on a method called sum of ranking differences. |
| Databáze: | OpenAIRE |
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