Table 1.

Four microarray datasets^* we used in this paper.

Dataset	# of genes	# of positive samples	# of negative samples
Leukemia	7129	47 (ALL)	25 (AML)
Lung Cancer	12533	331 (MPM)	150 (ADCA)
Breast Cancer	24481	46	51
Colon Cancer	2000	22	40

^*Data was obtained from http://sdmc.lit.org.sg/GEDatasets/Datasets.html