ACCURACY ANALYSIS

Precision (P)

Precision is defined as the fraction of retrieved instances that are relevant to the study. It can also be defined as the probability that a randomly selected retrieved information is relevant, i.e.,

Recall (R)

Recall is defined as the fraction of relevant instances that are retrieved for the study. It can also be defined as the fraction of the information that are relevant to the query that are successfully retrieved, i.e.,

F-score

F-score is the harmonic mean of precision and recall, i.e.,

True Tokens
Predicted Tokens