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Robustness in experimental design: A study on the reliability of selection approaches.
Comp. Struc. Biotech. J. 7:e201305002 (2013)
The quality criteria for experimental design approaches in chemoinformatics are numerous. Not only the error performance of a model resulting from the selected compounds is of importance, but also reliability, consistency, stability and robustness against small variations in the dataset or structurally diverse compounds. We developed a new stepwise, adaptive approach, DescRep, combining an iteratively refined descriptor selection with a sampling based on the putatively most representative compounds. A comparison of the proposed strategy was based on statistical performance of models derived from such a selection to those derived by other popular and frequently used approaches, such as the Kennard-Stone algorithm or the most descriptive compound selection. We used three datasets to carry out a statistical evaluation of the performance, reliability and robustness of the resulting models. Our results indicate that stepwise and adaptive approaches have a better adaptability to changes within a dataset and that this adaptability results in a better error performance and stability of the resulting models.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Design Of Experiments ; Compound Selection ; Descriptor Selection ; Outliers ; Representative Sampling ; Similarity Selection
ISSN (print) / ISBN
2001-0370
e-ISSN
2001-0370
Quellenangaben
Volume: 7,
Issue: 9,
Article Number: e201305002
Publisher
Research Network of Computational and Structural Biotechnology (RNCSB)
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Structural Biology (STB)