A graph-based method for reconstructing entities from coordination ellipsis in medical text.

ABSTRACT:

Objective

Coordination ellipsis is a linguistic phenomenon abound in medical text and is challenging for concept normalization because of difficulty in recognizing elliptical expressions referencing 2 or more entities accurately. To resolve this bottleneck, we aim to contribute a generalizable method to reconstruct concepts from medical coordinated elliptical expressions in a variety of biomedical corpora.

Materials and methods

We proposed a graph-based representation model and built a pipeline to reconstruct concepts from coordinated elliptical expressions in medical text (RECEEM). There are 4 modules: (1) identify all possible candidate conjunct pairs from original coordinated elliptical expressions, (2) calculate coefficients for candidate conjuncts using the embedding mo

SUBMITTER: Yuan C 

PROVIDER: S-EPMC7647336 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature