Title
A multiorganism based method for Bayesian gene network estimation.
Abstract
The primary goal of this article is to infer genetic interactions based on gene expression data. A new method for multiorganism Bayesian gene network estimation is presented based on multitask learning. When the input datasets are sparse, as is the case in microarray gene expression data, it becomes difficult to separate random correlations from true correlations that would lead to actual edges when modeling the gene interactions as a Bayesian network. Multitask learning takes advantage of the similarity between related tasks, in order to construct a more accurate model of the underlying relationships represented by the Bayesian networks. The proposed method is tested on synthetic data to illustrate its validity. Then it is iteratively applied on real gene expression data to learn the genetic regulatory networks of two organisms with homologous genes.
Year
DOI
Venue
2011
10.1016/j.biosystems.2010.12.004
Biosystems
Keywords
Field
DocType
Gene networks,Homologous genes,Bayesian network estimation,Multitask learning
Biology,Artificial intelligence,Machine learning
Journal
Volume
Issue
ISSN
103
3
0303-2647
Citations 
PageRank 
References 
0
0.34
13
Authors
5
Name
Order
Citations
PageRank
Zaher Dawy186973.62
Elias Yaacoub244144.96
Marcel Nassar326020.34
Rami Abdallah400.34
Hady Ali Zeineddine540.92