CorSpell: Introducing a Semiautomatic Tool for Spelling Normalization in Brazilian Portuguese

Juliana Schoffen, Dennis Giovani Balreira, Elisa Marchioro Stumpf, Larissa Goulart, Tanara Zingano Kuhn, Rafael Oleques Nunes, Gabriel Ricci Pazzinato, Isadora Dahmer Hanauer, José Henrique de Souza Silva, Luiza Sarmento Divino, Marine Matte


Abstract
With the growing availability of large text collections, efficient tools for corpus annotation and normalization have become increasingly important in linguistic and computational research. This paper presents CorSpell, a semiautomatic tool developed to support the spelling normalization of Brazilian Portuguese texts within the CorCel project—a corpus comprising over 15,000 handwritten exam responses from the Celpe-Bras proficiency test. Given the corpus scale, manual normalization is impractical; CorSpell streamlines this process by enabling users to visualize, select, and replace tokens directly through an intuitive web interface. The tool integrates automatic suggestions from PT-BR dictionaries with human validation, providing an interface for users to access and manipulate the texts. CorSpell significantly reduces annotation time, minimizes errors, and facilitates collaborative work, providing a practical and scalable solution for corpus normalization and a foundation for LLM-based modeling of Portuguese proficiency.
Anthology ID:
2026.lrec-1.130
Volume:
Proceedings of the Fifteenth Language Resources and Evaluation Conference
Month:
May
Year:
2026
Address:
Palma de Mallorca, Spain
Editors:
Stelios Piperidis, Núria Bel, Henk van den Heuvel, Nancy Ide, Simon Krek, Antonio Toral
Venue:
LREC
SIG:
Publisher:
ELRA Language Resource Association
Note:
Pages:
1659–1667
Language:
External URL:
https://lrec.elra.info/lrec2026-main-130
DOI:
10.63317/22uey2oj2w49
Bibkey:
Cite (ACL):
Juliana Schoffen, Dennis Giovani Balreira, Elisa Marchioro Stumpf, Larissa Goulart, Tanara Zingano Kuhn, Rafael Oleques Nunes, Gabriel Ricci Pazzinato, Isadora Dahmer Hanauer, José Henrique de Souza Silva, Luiza Sarmento Divino, and Marine Matte. 2026. CorSpell: Introducing a Semiautomatic Tool for Spelling Normalization in Brazilian Portuguese. In Proceedings of the Fifteenth Language Resources and Evaluation Conference, pages 1659–1667, Palma de Mallorca, Spain. ELRA Language Resource Association.
Cite (Informal):
CorSpell: Introducing a Semiautomatic Tool for Spelling Normalization in Brazilian Portuguese (Schoffen et al., LREC 2026)
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