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QSAR and Predictors of Eye and Skin Effects

Authors

  • Chin Yee Liew,

    1. Pharmaceutical Data Exploration Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543 fax: +65-67791554
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  • Chun Wei Yap

    Corresponding author
    1. Pharmaceutical Data Exploration Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543 fax: +65-67791554
    • Pharmaceutical Data Exploration Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543 fax: +65-67791554
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Abstract

In this study, the ensemble of features and training samples was examined with a collection of support vector machines. The effects of data sampling methods, ratio of positive to negative compounds, and types of base models combiner to produce ensemble models were explored. The ensemble method was applied to produce four separate in silico models to classify the labels for eye/skin corrosion (H314), skin irritation (H315), serious eye damage (H318), and eye irritation (H319), which are defined in the “Globally Harmonized System of Classification and Labelling of Chemicals”. To the best of our knowledge, the training set used in this work is one of the largest (made of publicly available data) with acceptable prediction performances. These models were distributed via PaDEL-DDPredictor (http://padel.nus.edu.sg/software/padelddpredictor) that can be downloaded freely for public use.

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