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Table 2 An example of calculating the concept similarity score between the query term "gastro reflux" and the UMLS concept "gastro oesophageal reflux" for the ConceptScore_Vector construction.

From: Effectively processing medical term queries on the UMLS Metathesaurus by layered dynamic programming

   UMLS concept gastro oesophageal reflux
   word index i k j
query term order   0 0 0
gastro 1 0 1 1 1
reflux 2 0 1 1.23594 2
  1. The calculation will refer to the WordSimilarityMatrix as shown in Table 1. The normalized final similarity score is 2*2/(2+3)=0.8.