INCEpTION

INCEpTION is an open-source text annotation tool primarily designed to annotate text documents. It supports annotations of words and sentences as well as linking annotations to each other.

• Collaborative Annotation: Multiple users can work on the same project, with built-in support for inter-annotator agreement metrics and different workflow management schemes.
• Customizable Annotation Layers: Users can define custom annotation schemas and layers tailored to specific project needs.
• Knowledge Base Integration: Annotations can be linked to knowledge bases and terminologies such as Wikidata, SNOMED CT and other RDF/OWL/OBO resources.
• Machine Learning Integration: INCEpTION can train and use machine learning models to suggest annotations, improving the efficiency of the annotation process.
• Interoperability: It supports a wide range of data formats (e.g., XMI, CoNLL, TSV), making it easy to import and export data for use with other NLP tools.

These features make INCEpTION a comprehensive solution for building and managing annotated corpora.