This is a Perl module that implements a variety of semantic similarity and relatedness measures based on ontologies and terminologies found in the Unified Medical Language System (UMLS). The measures assign numeric values between pairs of medical concepts indicating how similar or related they are.

We have a mailing list designed to support users of UMLS::Similarity.

We presented a tutorial at ACM IHI 2012 that contains extensive material about UMLS::Similarity and the underlying ideas. See our slides!

Local Installation

Web Services




The development of UMLS::Similarity and UMLS::Interface has been supported by an RO1 grant from the National Institutes of Health, National Library of Medicine (#1R01LM009623-01A2). Logo CPAN Logo NIH Logo
By: Ted Pedersen - tpederse AT d umn edu