COPIOUS: A gold standard corpus of named entities towards extracting species occurrence from biodiversity literature.

ABSTRACT: Background Species occurrence records are very important in the biodiversity domain. While several available corpora contain only annotations of species names or habitats and geographical locations, there is no consolidated corpus that covers all types of entities necessary for extracting species occurrence from biodiversity literature. In order to alleviate this issue, we have constructed the COPIOUS corpus-a gold standard corpus that covers a wide range of biodiversity entities. Results Two annotators manually annotated the corpus with five categories of entities, i.e. taxon names, geographical locations, habitats, temporal expressions and person names. The overall inter-annotator agreement on 200 doubly-annotated documents is approximately 81.86% F-score. Amongst the five

SUBMITTER: Nguyen NTH 

PROVIDER: S-EPMC6351503 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature