Title
Multiscale part mutual information for quantifying nonlinear direct associations in networks
Abstract
Motivation: For network-assisted analysis, which has become a popular method of data mining, network construction is a crucial task. Network construction relies on the accurate quantification of direct associations among variables. The existence of multiscale associations among variables presents several quantification challenges, especially when quantifying nonlinear direct interactions. Results: In this study, the multiscale part mutual information (MPMI), based on part mutual information (PMI) and nonlinear partial association (NPA), was developed for effectively quantifying nonlinear direct associations among variables in networks with multiscale associations. First, we defined the MPMI in theory and derived its five important properties. Second, an experiment in a three-node network was carried out to numerically estimate its quantification ability under two cases of strong associations. Third, experiments of the MPMI and comparisons with the PMI, NPA and conditional mutual information were performed on simulated datasets and on datasets from DREAM challenge project. Finally, the MPMI was applied to real datasets of glioblastoma and lung adenocarcinoma to validate its effectiveness. Results showed that the MPMI is an effective alternative measure for quantifying nonlinear direct associations in networks, especially those with multiscale associations.
Year
DOI
Venue
2021
10.1093/bioinformatics/btab182
BIOINFORMATICS
DocType
Volume
Issue
Journal
37
18
ISSN
Citations 
PageRank 
1367-4803
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Junliang Shang14214.78
Jing Wang22823.94
Yan Sun300.68
Feng Li400.68
Jinxing Liu52420.78
Honghai Zhang600.34