Cross Validation vs. Inter-Annotator Agreement by Bob Carpenter.
From the post:
Time, Negation, and Clinical Events
Mitzi’s been annotating clinical notes for time expressions, negations, and a couple other classes of clinically relevant phrases like diagnoses and treatments (I just can’t remember exactly which!). This is part of the project she’s working on with Noemie Elhadad, a professor in the Department of Biomedical Informatics at Columbia.
LingPipe Chunk Annotation GUI
Mitzi’s doing the phrase annotation with a LingPipe tool which can be found in
- LingPipe Sandbox: citationEntities project
She even brought it up to date with the current release of LingPipe and generalized the layout for documents with subsections.
Lessons in the use of LingPipe tools!
If you are annotating texts or anticipate annotating texts, read this post.