Brat: a Web-based Tool for NLP-Assisted Text Annotation

Pontus Stenetorp,Sampo Pyysalo,Goran Topic,Tomoko Ohta,Sophia Ananiadou,Jun'ichi Tsujii

Conference of the European Chapter of the Association for Computational Linguistics (EACL)（2012）

The University of Tokyo

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摘要

We introduce the brat rapid annotation tool (BRAT), an intuitive web-based tool for text annotation supported by Natural Language Processing (NLP) technology. BRAT has been developed for rich structured annotation for a variety of NLP tasks and aims to support manual curation efforts and increase annotator productivity using NLP techniques. We discuss several case studies of real-world annotation projects using pre-release versions of BRAT and present an evaluation of annotation assisted by semantic class disambiguation on a multicategory entity mention annotation task, showing a 15% decrease in total annotation time. BRAT is available under an open-source license from: http://brat.nlplab.org

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关键词

brat rapid annotation tool,multicategory entity mention annotation,real-world annotation project,rich structured annotation,text annotation,total annotation time,NLP task,NLP technique,intuitive web-based tool,Natural Language Processing,NLP-assisted text annotation