Finite-state script normalization and processing utilities: The Nisaba Brahmic library

Cibu Johny, Lawrence Wolf-Sonkin, Alexander Gutkin, Brian Roark

Abstract
This paper presents an open-source library for efficient low-level processing of ten major South Asian Brahmic scripts. The library provides a flexible and extensible framework for supporting crucial operations on Brahmic scripts, such as NFC, visual normalization, reversible transliteration, and validity checks, implemented in Python within a finite-state transducer formalism. We survey some common Brahmic script issues that may adversely affect the performance of downstream NLP tasks, and provide the rationale for finite-state design and system implementation details.
Anthology ID:
2021.eacl-demos.3
Volume:
Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: System Demonstrations
Month:
April
Year:
2021
Address:
Online
Venue:
EACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
14–23
Language:
URL:
https://aclanthology.org/2021.eacl-demos.3
DOI:
10.18653/v1/2021.eacl-demos.3
Bibkey:
Cite (ACL):
Cibu Johny, Lawrence Wolf-Sonkin, Alexander Gutkin, and Brian Roark. 2021. Finite-state script normalization and processing utilities: The Nisaba Brahmic library. In Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: System Demonstrations, pages 14–23, Online. Association for Computational Linguistics.
Cite (Informal):
Finite-state script normalization and processing utilities: The Nisaba Brahmic library (Johny et al., EACL 2021)
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PDF:
https://preview.aclanthology.org/remove-xml-comments/2021.eacl-demos.3.pdf
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