Title
Comparison of Random Forest and Pipeline Pilot Naïve Bayes in Prospective QSAR Predictions.
Abstract
Random forest is currently considered one of the best QSAR methods available in terms of accuracy of prediction. However, it is computationally intensive. Naive Bayes is a simple, robust classification method. The Laplacian-modified Naive Bayes implementation is the preferred QSAR method in the widely used commercial chemoinformatics platform Pipeline Pilot. We made a comparison of the ability of Pipeline Pilot Naive Bayes (PLPNB) and random forest to make accurate predictions on 18 large, diverse in-house QSAR data sets. These include on-target and ADME-related activities. These data sets were set up as classification problems with either binary or multicategory activities. We used a time-split method of dividing training and test sets, as we feel this is a realistic way of simulating prospective prediction. PLPNB is computationally efficient. However, random forest predictions are at least as good and in many cases significantly better than those of PLPNB on our data sets. PLPNB performs better with ECFP4 and ECFP6 descriptors, which are native to Pipeline Pilot, and more poorly with other descriptors we tried.
Year
DOI
Venue
2012
10.1021/ci200615h
JOURNAL OF CHEMICAL INFORMATION AND MODELING
Field
DocType
Volume
Quantitative structure–activity relationship,Data set,Naive Bayes classifier,Binary classification,Computer science,Multicategory,Supervised learning,Artificial intelligence,Random forest,Machine learning,Cheminformatics
Journal
52
Issue
ISSN
Citations 
3
1549-9596
19
PageRank 
References 
Authors
0.88
20
4
Name
Order
Citations
PageRank
Bin Chen1190.88
Robert P. Sheridan2873105.00
Viktor Hornak3264.43
Johannes H. Voigt49312.24