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Table 2 Breakdown of Classification Errors

From: Generating prior probabilities for classifiers of brain tumours using belief networks

Class Share of Error (Prevalence) Share of Error (Belief Network)
astrocytoma G1, G2 v 24 18.5% 15.2%
medulloblastoma v 30 27.1% 25.6%
ependymoma v 29 9.2% 11.3%
germinoma v 27 8.0% 4.8%
PNET v 28 7.6% 7.3%
astrocytoma grade G3, G4 v 31 12.1% 14.1%
other v 32 17.5% 21.6%
  1. Each percentage is the apportionment of total classification errors attributable to each class, obtained over the 920 trials used to estimate the 632+ error.