WebAnno - About Us

WebAnno 1

The very first iteration supporting only a limited set of annotation types.


In alphabetical order (surname)

  • Chris Biemann (project lead)
  • Richard Eckart de Castilho (senior developer)
  • Iryna Gurevych (scientific consulting)
  • Benjamin Milde (crowd-sourcing)
  • Seid Muhie Yimam (developer)
  • Andreas Straninger (curation)

To cite WebAnno 1, please use:

Yimam, S.M., Gurevych, I., Eckart de Castilho, R., and Biemann C. (2013): WebAnno: A Flexible, Web-based and Visually Supported System for Distributed Annotations. In Proceedings of ACL-2013, demo session, Sofia, Bulgaria. (pdf) (bib)

The development of WebAnno 1 was supported by CLARIN F-AG7 KP1.

WebAnno 2

This iteration brings support for custom layers, a new WebAnno file format, and support for automation. Additionally, we integrate functionality allowing CLARIN to run WebAnno as an infrastructure service.


In alphabetical order (surname)

  • Chris Biemann (@front; project lead)
  • Darina Benikova (@right; documentation)
  • Richard Eckart de Castilho (@back; senior developer)
  • Iryna Gurevych (not on picture; scientific consulting)
  • Seid Muhie Yimam (@left; developer)

To cite the automatic annotation and customizable annotation layer support and WebAnno 2, please use:

Yimam, S.M., Eckart de Castilho, R., Gurevych, I., and Biemann C. (2014): Automatic Annotation Suggestions and Custom Annotation Layers in WebAnno. In: Proceedings of ACL-2014, demo session, Baltimore, MD, USA (pdf) (bib) (poster pdf)

To cite WebAnno within the CLARIN-D infrastructure, please use:

Eckart de Castilho, R., Biemann, C., Gurevych, I. and Yimam, S.M. (2014): WebAnno: a flexible, web-based annotation tool for CLARIN. In Proceedings of the CLARIN Annual Conference (CAC) 2014, Soesterberg, Netherlands. (pdf) (bib) (slides pdf)

The development of WebAnno 2 was supported by CLARIN F-AG7 KP1.

WebAnno 3

In this development iteration, we focus on improving the support for semantic annotations, in particular semantic role labelling.


In alphabetical order (surname)

  • Chris Biemann (project lead)
  • Richard Eckart de Castilho (project lead)
  • Anette Frank (scientific consulting)
  • Iryna Gurevych (scientific consulting)
  • Silvana Hartmann (testing)
  • Sushil Jain (junior developer)
  • Éva Mújdricza-Maydt (testing)
  • Aakash Sharma (junior developer)
  • Anshul Tak (junior developer)
  • Seid Muhie Yimam (developer)

To cite the semantic annotation support and WebAnno 3, please use:

Eckart de Castilho, R., Mújdricza-Maydt, É., Yimam, S.M., Hartmann, S., Gurevych, I., Frank, A. and Biemann, C. (2016): A Web-based Tool for the Integrated Annotation of Semantic and Syntactic Structures. In Proceedings of the LT4DH workshop at COLING 2016, Osaka, Japan (pdf) (bib)

The development of WebAnno 3 was supported by CLARIN F-AG7 KP3.

Additionally, WebAnno 3 was generously supported by:

Appen logo used with kind permission by Appen.