Symbol	Range	Annotation
dil	1,2,...,G	Number of genes in a dataset with FDR lower than the threshold l
ELg	(0,Inf)	Expected value of the log likelihood with respect to the FDR threshold
fil	1,2,...,dil	Number of false positives using the FDR threshold l
Fgi	(0,1)	Gene-specific false discovery rate in dataset i: proportion of false positives among the significant calls
FDRg	(0,1)	Gene-specific false discovery rate for having consistently differentially expressed patterns among the datasets studied
g	1,2,...,G	Index for a gene from the union of gene sets across all datasets
h	1,2,...,Hi	Index for fold change comparison between a case and a control from a dataset, where mi * ni = Hi
i	1,2,...,D	Index for a gene expression microarray dataset (consists of mi cases and ni controls)
l	(0,1)	FDR threshold used to enumerate number of genes with FDR lower than this threshold in a dataset and to estimate the number of false positives under this threshold
L(rgl|Data)	(0,1)	Gene- and FDR threshold- specific likelihood of observing the differential expressed pattern among the datasets
${M^{\overline{up}}}_i\left({M^{\overline{down}}}_i\right)$	1,2,...,G	number of genes that are not up(not down)-regulated in dataset i
Qgl	(0,Inf)	Minus log likelihood
${{\widehat{r}}^{up}}_{il}({{\widehat{r}}^{down}}_{il}\mathsf{\text{ )}}$	(0,1)	False positive rate: the probability of a non-up-regulated (non-down-regulated) gene being falsely called as over-expressed (under-expressed)
${\delta }_{gil}^{up}$ (or ${\delta }_{gil}^{down}$)	0[1]	Binary variable indicating gene g is identified as up(or down)-regulated in dataset i for threshold l
γgih	1,2,...,G	rank of fold change for gene g in the hth comparison of dataset i