sign-lang@LREC Anthology

Quevedo: Annotation and Processing of Graphical Languages

Sevilla, Antonio F. G. | Díaz Esteban, Alberto | Lahoz-Begoechea, José María

Proceedings of the 13th International Conference on Language Resources and Evaluation (LREC 2022)
Marseille, France
20 to 25 June 2022
European Language Resources Association (ELRA)
CC BY-NC 4.0


In this article, we present Quevedo, a software tool we have developed for the task of automatic processing of graphical languages. These are languages which use images to convey meaning, relying not only on the shape of symbols but also on their spatial arrangement in the page, and relative to each other. When presented in image form, these languages require specialized computational processing which is not the same as usually done either for natural language processing or for artificial vision. Quevedo enables this specialized processing, focusing on a data-based approach. As a command line application and library, it provides features for the collection and management of image datasets, and their machine learning recognition using neural networks and recognizer pipelines. This processing requires careful annotation of the source data, for which Quevedo offers an extensive and visual web-based annotation interface. In this article, we also briefly present a case study centered on the task of SignWriting recognition, the original motivation for writing the software. Quevedo is written in Python, and distributed freely under the Open Software License version 3.0.

Document Download

Paper PDF BibTeX File BibTeX File w/Abstract

BibTeX Export

  author    = {Sevilla, Antonio F. G. and D{\'i}az Esteban, Alberto and Lahoz-Begoechea, Jos{\'e} Mar{\'i}a},
  title     = {{Quevedo}: Annotation and Processing of Graphical Languages},
  pages     = {2528--2535},
  editor    = {Calzolari, Nicoletta and Fr{\'e}d{\'e}ric B{\'e}chet and Blache, Philippe and Choukri, Khalid and Cieri, Christopher and Declerck, Thierry and Goggi, Sara and Isahara, Hitoshi and Maegaard, Bente and Mariani, Joseph and Mazo, H{\'e}l{\`e}ne and Odijk, Jan and Piperidis, Stelios},
  booktitle = {13th International Conference on Language Resources and Evaluation ({LREC} 2022)},
  publisher = {{European Language Resources Association (ELRA)}},
  address   = {Marseille, France},
  day       = {20--25},
  month     = jun,
  year      = {2022},
  language  = {english},
  url       = {}
Something missing or wrong?