Challenges and Solutions for Latin Named Entity Recognition

Alexander Erdmann, Christopher Brown, Brian Joseph, Mark Janse, Petra Ajaka, Micha Elsner, Marie-Catherine de Marneffe


Abstract
Although spanning thousands of years and genres as diverse as liturgy, historiography, lyric and other forms of prose and poetry, the body of Latin texts is still relatively sparse compared to English. Data sparsity in Latin presents a number of challenges for traditional Named Entity Recognition techniques. Solving such challenges and enabling reliable Named Entity Recognition in Latin texts can facilitate many down-stream applications, from machine translation to digital historiography, enabling Classicists, historians, and archaeologists for instance, to track the relationships of historical persons, places, and groups on a large scale. This paper presents the first annotated corpus for evaluating Named Entity Recognition in Latin, as well as a fully supervised model that achieves over 90% F-score on a held-out test set, significantly outperforming a competitive baseline. We also present a novel active learning strategy that predicts how many and which sentences need to be annotated for named entities in order to attain a specified degree of accuracy when recognizing named entities automatically in a given text. This maximizes the productivity of annotators while simultaneously controlling quality.
Anthology ID:
W16-4012
Volume:
Proceedings of the Workshop on Language Technology Resources and Tools for Digital Humanities (LT4DH)
Month:
December
Year:
2016
Address:
Osaka, Japan
Venue:
LT4DH
SIG:
Publisher:
The COLING 2016 Organizing Committee
Note:
Pages:
85–93
Language:
URL:
https://aclanthology.org/W16-4012
DOI:
Bibkey:
Cite (ACL):
Alexander Erdmann, Christopher Brown, Brian Joseph, Mark Janse, Petra Ajaka, Micha Elsner, and Marie-Catherine de Marneffe. 2016. Challenges and Solutions for Latin Named Entity Recognition. In Proceedings of the Workshop on Language Technology Resources and Tools for Digital Humanities (LT4DH), pages 85–93, Osaka, Japan. The COLING 2016 Organizing Committee.
Cite (Informal):
Challenges and Solutions for Latin Named Entity Recognition (Erdmann et al., LT4DH 2016)
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PDF:
https://aclanthology.org/W16-4012.pdf