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. Author manuscript; available in PMC: 2013 Aug 27.
Published in final edited form as: Med Image Comput Comput Assist Interv. 2012;15(0 1):99–106. doi: 10.1007/978-3-642-33415-3_13

Table 3.

Computation time (s) for repetitive KRR and IKRR. “Speedup” means the factor that IKRR gained in CPU time over KRR

Number of training 1000 2000 3000 4000 5000
KRR 0.8542 3.3293 7.6927 14.1571 22.6551
IKRR 0.0089 0.0203 0.0357 0.0477 0.0629
Speedup 96.0 164.0 215.5 296.8 360.2