Detecting intersectionality in NER models: A data-driven approach

Ida Marie S. Lassen, Mina Almasi, Kenneth Enevoldsen, Ross Deans Kristensen-McLachlan


Abstract
The presence of bias is a pressing concern for both engineers and users of language technology. What is less clear is how exactly bias can be measured, so as to rank models relative to the biases they display. Using an innovative experimental method involving data augmentation, we measure the effect of intersectional biases in Danish models used for Name Entity Recognition (NER). We quantify differences in representational biases, understood as a systematic difference in error or what is called error disparity. Our analysis includes both gender and ethnicity to illustrate the effect of multiple dimensions of bias, as well as experiments which look to move beyond a narrowly binary analysis of gender. We show that all contemporary Danish NER models perform systematically worse on non-binary and minority ethnic names, while not showing significant differences for typically Danish names. Our data augmentation technique can be applied on other languages to test for biases which might be relevant for researchers applying NER models to the study of cultural heritage data.
Anthology ID:
2023.latechclfl-1.13
Volume:
Proceedings of the 7th Joint SIGHUM Workshop on Computational Linguistics for Cultural Heritage, Social Sciences, Humanities and Literature
Month:
May
Year:
2023
Address:
Dubrovnik, Croatia
Editors:
Stefania Degaetano-Ortlieb, Anna Kazantseva, Nils Reiter, Stan Szpakowicz
Venue:
LaTeCHCLfL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
116–127
Language:
URL:
https://aclanthology.org/2023.latechclfl-1.13
DOI:
10.18653/v1/2023.latechclfl-1.13
Bibkey:
Cite (ACL):
Ida Marie S. Lassen, Mina Almasi, Kenneth Enevoldsen, and Ross Deans Kristensen-McLachlan. 2023. Detecting intersectionality in NER models: A data-driven approach. In Proceedings of the 7th Joint SIGHUM Workshop on Computational Linguistics for Cultural Heritage, Social Sciences, Humanities and Literature, pages 116–127, Dubrovnik, Croatia. Association for Computational Linguistics.
Cite (Informal):
Detecting intersectionality in NER models: A data-driven approach (Lassen et al., LaTeCHCLfL 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.latechclfl-1.13.pdf
Video:
 https://aclanthology.org/2023.latechclfl-1.13.mp4