Table 2. Summary of validation set and results of classification algorithm.

GEO ID#	GSE8271	GSE12090	GSE7023	GSE6344	—
Institution	V.A.I.	Cornell	V.A.I.	M.C.	N.C.I.
Pubmed ID*	18773095	17145811	17409424	17699851
Chip type	HG U133Plus2.0	HG U133Plus2.0	HG U133Plus2.0	HG U133A	HG U133Plus2.0	Total	Correct Classification (%)
Clear Cell	—	—	—	10	10	20	19/20 (95%)
Papillary	—	—	14	—	—	14	14/14 (100%)
Chromophobe	10	9	—	—	—	19	17/19 (90%)
Oncocytoma	10	9	—	—	—	19	18/19 (95%)
Total	20	18	14	10	10	72	68/72 (94%)

*Publication associated with dataset.

V.A. – Van Andle Institute.

M.C. – Mayo Clinic, Jacksonville.

N.C.I. – National Cancer Institute.