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Table 2 Metrics for clinical expert validation of 866 generated synonyms for 500 terms

From: Improved characterisation of clinical text through ontology-based vocabulary expansion

Terms Total Synonyms TP FP Non-English Uncertain Precision
500 866 614 59 161 32 0.912 (0.709)
  1. Synonyms already included in HP were not included in the validation. Synonyms were either marked correct, incorrect, non-English, or uncertain. Uncertain was chosen if the validator did not have enough expertise to confidently judge the synonym. Precision is calculated with TP and FP columns of the table, while the figure in parentheses is calculated using the sum of the FP, Non-English, Uncertain columns as false positives, to illustrate the worst case scenario, where every unknown synonym is actually incorrect