Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning

A chemically explainable machine learning model was constructed with a small dataset to quantitatively predict the singlet-oxygen-scavenging ability. In this model, ensemble learning based on decision trees resulted in high accuracy. For explanatory variables, molecular descriptors by computational...

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Main Authors: Taiki Fujimoto, Hiroaki Gotoh
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Antioxidants
Subjects:
Online Access:https://www.mdpi.com/2076-3921/10/11/1751
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author Taiki Fujimoto
Hiroaki Gotoh
author_facet Taiki Fujimoto
Hiroaki Gotoh
author_sort Taiki Fujimoto
collection DOAJ
description A chemically explainable machine learning model was constructed with a small dataset to quantitatively predict the singlet-oxygen-scavenging ability. In this model, ensemble learning based on decision trees resulted in high accuracy. For explanatory variables, molecular descriptors by computational chemistry and Morgan fingerprints were used for achieving high accuracy and simple prediction. The singlet-oxygen-scavenging mechanism was explained by the feature importance obtained from machine learning outputs. The results are consistent with conventional chemical knowledge. The use of machine learning and reduction in the number of measurements for screening high-antioxidant-capacity compounds can considerably improve prediction accuracy and efficiency.
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spelling doaj.art-f85ee57e14b544cbac95630c0dc2d7892023-11-22T22:13:10ZengMDPI AGAntioxidants2076-39212021-11-011011175110.3390/antiox10111751Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine LearningTaiki Fujimoto0Hiroaki Gotoh1Department of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, JapanDepartment of Chemistry and Life Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, JapanA chemically explainable machine learning model was constructed with a small dataset to quantitatively predict the singlet-oxygen-scavenging ability. In this model, ensemble learning based on decision trees resulted in high accuracy. For explanatory variables, molecular descriptors by computational chemistry and Morgan fingerprints were used for achieving high accuracy and simple prediction. The singlet-oxygen-scavenging mechanism was explained by the feature importance obtained from machine learning outputs. The results are consistent with conventional chemical knowledge. The use of machine learning and reduction in the number of measurements for screening high-antioxidant-capacity compounds can considerably improve prediction accuracy and efficiency.https://www.mdpi.com/2076-3921/10/11/1751machine learningantioxidantsinglet oxygenfeature importanceinterpretabilitycarotenoid
spellingShingle Taiki Fujimoto
Hiroaki Gotoh
Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning
Antioxidants
machine learning
antioxidant
singlet oxygen
feature importance
interpretability
carotenoid
title Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning
title_full Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning
title_fullStr Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning
title_full_unstemmed Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning
title_short Prediction and Chemical Interpretation of Singlet-Oxygen-Scavenging Activity of Small Molecule Compounds by Using Machine Learning
title_sort prediction and chemical interpretation of singlet oxygen scavenging activity of small molecule compounds by using machine learning
topic machine learning
antioxidant
singlet oxygen
feature importance
interpretability
carotenoid
url https://www.mdpi.com/2076-3921/10/11/1751
work_keys_str_mv AT taikifujimoto predictionandchemicalinterpretationofsingletoxygenscavengingactivityofsmallmoleculecompoundsbyusingmachinelearning
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