Title
A compressed sensing based two-stage method for detecting epistatic interactions
Abstract
Epistatic interactions of single nucleotide polymorphisms (SNPs) are believed to be important in revealing missing heritability of complex diseases. Detection of them is of great challenge since it is a high-dimensional and small-sample-size problem. In this paper, we propose a compressed sensing (CS) based two-stage method CSMiner for detecting epistatic interactions. It consists of two stages: screening stage and detecting stage. In screening stage, SNP selection is equivalent to CS reconstruction by considering SNP data and class labels as sensing matrix and measurement vector, respectively. Here, top ranking SNPs with high signal weights are retained. In detecting stage, mutual information is employed to exhaustively search epistatic interactions within the retained SNPs. Experiments of CSMiner are performed on both simulation data sets and a real age-related macular degeneration data set. Results demonstrate that CSMiner is effective and efficient in detecting epistatic interactions, and might be an alternative to existing methods.
Year
DOI
Venue
2016
10.1504/IJDMB.2016.075821
INTERNATIONAL JOURNAL OF DATA MINING AND BIOINFORMATICS
Keywords
Field
DocType
epistatic interactions,SNP,single nucleotide polymorphism,compressed sensing,sparse representation,mutual information
Data set,Missing heritability problem,Ranking,Epistasis,Computer science,Sparse approximation,Mutual information,Bioinformatics,SNP,Compressed sensing
Journal
Volume
Issue
ISSN
14
4
1748-5673
Citations 
PageRank 
References 
0
0.34
16
Authors
5
Name
Order
Citations
PageRank
Li Shengjun143.13
Junliang Shang24214.78
Chen Qinliang300.34
Sun Yan462.83
Liu Jin-Xing54016.11