Title
Condorcet and borda count fusion method for ligand-based virtual screening.
Abstract
It is known that any individual similarity measure will not always give the best recall of active molecule structure for all types of activity classes. Recently, the effectiveness of ligand-based virtual screening approaches can be enhanced by using data fusion. Data fusion can be implemented using two different approaches: group fusion and similarity fusion. Similarity fusion involves searching using multiple similarity measures. The similarity scores, or ranking, for each similarity measure are combined to obtain the final ranking of the compounds in the database.The Condorcet fusion method was examined. This approach combines the outputs of similarity searches from eleven association and distance similarity coefficients, and then the winner measure for each class of molecules, based on Condorcet fusion, was chosen to be the best method of searching. The recall of retrieved active molecules at top 5% and significant test are used to evaluate our proposed method. The MDL drug data report (MDDR), maximum unbiased validation (MUV) and Directory of Useful Decoys (DUD) data sets were used for experiments and were represented by 2D fingerprints.Simulated virtual screening experiments with the standard two data sets show that the use of Condorcet fusion provides a very simple way of improving the ligand-based virtual screening, especially when the active molecules being sought have a lowest degree of structural heterogeneity. However, the effectiveness of the Condorcet fusion was increased slightly when structural sets of high diversity activities were being sought.
Year
DOI
Venue
2014
10.1186/1758-2946-6-19
J. Cheminformatics
Keywords
Field
DocType
data fusion,similarity coefficients,similarity searching,virtual screening,biomedical research,bioinformatics
Data mining,Borda count,Data set,Similarity measure,Ranking,Computer science,Fusion,Sensor fusion,Bioinformatics,Virtual screening,Condorcet method
Journal
Volume
Issue
ISSN
6
1
1758-2946
Citations 
PageRank 
References 
4
0.40
21
Authors
4
Name
Order
Citations
PageRank
Ahmed Hassan M. H. Ali121324.82
Faisal Saeed23713.24
Naomie Salim342448.23
Ammar Abdo4627.89