WebAnno

 

WebAnno is a general purpose web-based annotation tool for a wide range of linguistic annotations. WebAnno offers annotation project management, freely configurable tagsets and the management of users in different roles. WebAnno uses technology from the brat rapid annotation tool for visualizing and editing annotations in a web browser. It supports annotation and visualization of arbitrarily large documents, pluggable import/export filters, the curation of annotations across various users, and farming out annotations to a crowdsourcing platform.

Currently, WebAnno allows POS, Named Entity, Dependency Parsing and co-reference resolution annotations. The architecture design allows to add additional modes of visualization and editing, when new kinds of annotations are to be supported.

The added value of WebAnno, as compared to previous annotation tools, is on the one hand constituted by its web-based interface to skilled as well as unskilled annotators, which unlocks a potentially very large workforce. On the other hand, the tool's support functionality for quality control and annotator management and curation lowers the entrance barrier for new annotation projects.

We created WebAnno to fulfill the following requirements:

  • Flexibility: Support of several annotation layers, several import and export formats, and extendibility to other frontends.
  • Web-based: Increased availability, distributed work, no installation effort.
  • Open Source: Usability of our tool in future projects without restrictions, under the Apache 2.0 license.
  • Quality and User Management: Integrated different user roles (administrator, annotator, and curator) support for several users, inter-annotator agreement measurement, data curation, and progress monitoring.
  • Interface to Crowdsourcing: unlocking a very large distributed workforce.
  • Pre-annotated and un-annotated documents: supporting new annotations, as well as manual corrections of automatic annotations.

Downloads

The source code is provided under the Apache Software License (ASL) version 2.

Publications

Collaborative Web-based Tools for Multi-layer Text Annotation

Author Chris Biemann, Kalina Bontcheva, Richard Eckart de Castilho, Iryna Gurevych, Seid Muhie Yimam
Date 2017
Kind InCollection
Editor Nancy Ide, James Pustejovsky
PublisherSpringer Netherlands
Book titleThe Handbook of Linguistic Annotation
SeriesText, Speech, and Technology book series
Pages229--256
ISBN978-94-024-0879-9
DOI10.1007/978-94-024-0881-2
KeyTUD-CS-2014-1066
Research Areas Ubiquitous Knowledge Processing, Theoretische Informatik - Kryptographie und Computeralgebra, UKP_s_WebAnno, UKP_a_LangTech4eHum, UKP_a_LTDH, UKP_reviewed
Website http://www.springer.com/de/book/9789402408799
Full paper (pdf)
[Export this entry to BibTeX]

Important Copyright Notice:

The documents contained in these directories are included by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.
A A A | Drucken Print | Impressum Impressum | Sitemap Sitemap | Suche Search | Kontakt Contact | Webseitenanalyse: Mehr Informationen
zum Seitenanfangzum Seitenanfang