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Description:
brat rapid annotation tool, is a free, open-source, web-based tool for text annotation visualisation and editing.
brat is fully configurable and can support a wide variety of annotation tasks, including, for example:
* entity mention ("named entity") annotation
* binary relation annotation
* dependency syntactic annotation
* structured, n-ary event annotation
* attribute/meta-knowledge annotation (e.g. negation, speculation, etc.)
The tool also provides annotation support features such as text and
annotation search with detailed constraints, keyword-in-context
concordancing, and integrated configurable checking of task-specific
semantic constraints.
brat
is developed as a collaborative effort between several research
groups as an open source project (MIT license), and we warmly welcome
contributions and participation from the community, including feature
requests.
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