Fig. 1
From: A method for named entity normalization in biomedical articles: application to diseases and plants
Comparison between the NCBI disease corpus and the abbreviation dictionary. The upper and the lower pie charts represent the NCBI training corpus and the NCBI test corpus, respectively. The dark gray parts represent abstracts in which disease names are not abbreviated, and yellow parts represent abstracts that contain at least one disease name abbreviation. Among the abstracts in yellow, the red parts represent abstracts with disease abbreviation information in the abbreviation dictionary, and the gray parts represent abstracts that contain at least one disease name abbreviation that is not included in the abbreviation dictionary