Proc AMIA Annu Fall Symp. 1997:630-4.

Partitioning a vocabulary's IS-A hierarchy into trees.

Gu H, Perl Y, Geller J, Halper M, Cimino JJ, Singh M.

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CIS Dept., NJIT, Newark 07102, USA.

Abstract

Controlled medical vocabularies are useful in application areas such as medical information-systems and decision-support. However, such vocabularies are large and complex, and working with them can be daunting. It is important to provide a means for orienting users to the vocabulary's contents. This paper introduces a methodology for partitioning a vocabulary into small, meaningful pieces. The partitioning is done with respect to the vocabulary's IS-A hierarchy. The methodology, based on a set of rules for refining the IS-A hierarchy, is a process carried out by a user in conjunction with the computer. The methodology is demonstrated on a complex portion of a vocabulary.

PMID:: 9357702; [PubMed - indexed for MEDLINE]
PMCID: PMC2233245

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