Title
Metabolomics variable selection and classification in the presence of observations below the detection limit using an extension of ERp.
Abstract
XERp takes into account the distributional structure of data with a probability mass at zero without requiring any knowledge of the detection limit of the metabolomics platform. XERp is able to identify variables that discriminate between two groups by simultaneously extracting information from the difference in the proportion of zeros and shifts in the distributions of the non-zero observations. XERp uses simple rules to classify new subjects and a weight pair to adjust for unequal sample sizes or sensitivity and specificity requirements.
Year
DOI
Venue
2017
10.1186/s12859-017-1480-8
BMC Bioinformatics
Keywords
Field
DocType
Classification,Detection limit,Metabolomics,Probability mass at zero,Variable selection
Probability mass function,Feature selection,Tuberculosis Meningitis,Computer science,Null hypothesis,Metabolomics,Cumulative distribution function,Bioinformatics,Jump,Sample size determination
Journal
Volume
Issue
ISSN
18
1
1471-2105
Citations 
PageRank 
References 
0
0.34
4
Authors
4
Name
Order
Citations
PageRank
Mari van Reenen110.75
Johan A. Westerhuis201.35
Carolus J Reinecke310.75
J. Hendrik Venter400.34