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Introduction
This document describes:
- Manual annotations added to the CLEF gold standard corpus, 2006 - 2007.
- Guidelines for creating those annotations
- Technical details of annotation formats and gold standard processing.
CLEF gold standard annotations mark semantic units in clinical texts: things such as diseases, drugs, body parts. The annotations also mark the relationships between these things. This document provides a common understanding of what defines an annotation. Information is provided for CLEF project members, and for any other users of the gold standard corpus.
The description given is informal: a formal definition of annotations is also available if required.