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Evaluation Measures

faridani edited this page Jan 24, 2012 · 4 revisions

There should be a folder called "evaluation"

It will contain functions for the following measures (see page 268 of Manning Schutze)

  • Precision
  • Recall
  • F-measure
  • Fallout

TODO

  • Accuracy

Equations

  • Precision = tp/(tp+fp)
  • Recall = tp/(tp+fn)
  • F-measure: F = 1/(alpha*(1/p)+(1-alpha)*(1/R)) in which P is precision and R is recall. alpha is a value often should be solicited from user (0.5 by default)
  • Fallout = fp/(fp+tn)
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