The web link is http://hegemon.ucsd.edu/plant/.
http://hegemon.ucsd.edu/plant/
Identification of gene expression logical invariants in Arabidopsis.Numerous gene expression datasets from diverse tissue samples from the plant variety Arabidopsis thaliana have been already deposited in the public domain. 
Arabidopsis thaliana
We propose here a new large scale meta-analysis of the publicly available Arabidopsis datasets to identify Boolean logical relationships between genes.  Boolean logic is a branch of mathematics that deals with two possible values. 
Boolean logic