Annotating Arguments: The NOMAD Collaborative Annotation Tool

Georgios Petasis


Abstract
The huge amount of the available information in the Web creates the need for effective information extraction systems that are able to produce metadata that satisfy user’s information needs. The development of such systems, in the majority of cases, depends on the availability of an appropriately annotated corpus in order to learn or evaluate extraction models. The production of such corpora can be significantly facilitated by annotation tools, which provide user-friendly facilities and enable annotators to annotate documents according to a predefined annotation schema. However, the construction of annotation tools that operate in a distributed environment is a challenging task: the majority of these tools are implemented as Web applications, having to cope with the capabilities offered by browsers. This paper describes the NOMAD collaborative annotation tool, which implements an alternative architecture: it remains a desktop application, fully exploiting the advantages of desktop applications, but provides collaborative annotation through the use of a centralised server for storing both the documents and their metadata, and instance messaging protocols for communicating events among all annotators. The annotation tool is implemented as a component of the Ellogon language engineering platform, exploiting its extensive annotation engine, its cross-platform abilities and its linguistic processing components, if such a need arises. Finally, the NOMAD annotation tool is distributed with an open source license, as part of the Ellogon platform.
Anthology ID:
L14-1526
Volume:
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)
Month:
May
Year:
2014
Address:
Reykjavik, Iceland
Editors:
Nicoletta Calzolari, Khalid Choukri, Thierry Declerck, Hrafn Loftsson, Bente Maegaard, Joseph Mariani, Asuncion Moreno, Jan Odijk, Stelios Piperidis
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
1930–1937
Language:
URL:
http://www.lrec-conf.org/proceedings/lrec2014/pdf/669_Paper.pdf
DOI:
Bibkey:
Cite (ACL):
Georgios Petasis. 2014. Annotating Arguments: The NOMAD Collaborative Annotation Tool. In Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14), pages 1930–1937, Reykjavik, Iceland. European Language Resources Association (ELRA).
Cite (Informal):
Annotating Arguments: The NOMAD Collaborative Annotation Tool (Petasis, LREC 2014)
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PDF:
http://www.lrec-conf.org/proceedings/lrec2014/pdf/669_Paper.pdf