Table 3

Performance comparison of the unsupervised clustering algorithms on NSCLC data set.

Methods

P-value for TTRa

P-value for OSb

Stability Testc


our gNMF

0.001

0.250

14.24%


hierarchical clustering

0.168

0.137

23.32%


original gNMF

0.085

0.144

21.59%


K-means

0.566

0.413

23.27%


a The p-values comparing TTR of NSCLC patients classified into different subtypes by each clustering method

b The p-values comparing OS of NSCLC patients classified into different subtypes by each clustering method

c The error rate of 10-fold stability test for each method

Lu et al. BMC Medical Genomics 2010 3:23   doi:10.1186/1755-8794-3-23

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