Hellina Nigatu
Author directory2026
Yeswa-Stories: A Three-Way Parallel Dataset of Female African Figures in Low-Web Data Languages
Bethelhem Mamo | Hellina Nigatu
Proceedings of the 4th Workshop on Gender-Inclusive Translation Technologies (GITT 2026)
Bethelhem Mamo | Hellina Nigatu
Proceedings of the 4th Workshop on Gender-Inclusive Translation Technologies (GITT 2026)
Language technologies used in everyday settings such as machine translation systems risk perpetuating societal bias. As previous work shows, biases in these systems not only underscore representational harm but also materialize into economic disparities in resources required to correct errors for the disadvantaged social group. Prior work in creating benchmarks for gender bias in machine translation systems 1) focus primarily on high-resourced language pairs or a low-resourced language paired with a high resource language, 2) use template based benchmarks that usually focus on occupational biases and stereotypes, and 3) translate high-resource benchmarks which may lack cultural significance to low-resourced languages. In this paper, we introduce Yeswa-Stories, a three-way parallel dataset comprising 1,300 aligned sentences in Amharic, Afaan Oromo, and Tigrinya. The dataset focuses on narratives about women and is designed to support research on gender representation in translation. We constructed the dataset in two ways: first, we collected English sentences from Wikipedia articles about notable African women and translated them into the three target languages using human translators. To improve cultural representativeness, we further augment the dataset with locally sourced content reflecting the cultural context where the languages are spoken. Our dataset contributes a new resource for studying gender-inclusive translation in low-resourced settings.
2023
The Less the Merrier? Investigating Language Representation in Multilingual Models
Hellina Nigatu | Atnafu Tonja | Jugal Kalita
Findings of the Association for Computational Linguistics: EMNLP 2023
Hellina Nigatu | Atnafu Tonja | Jugal Kalita
Findings of the Association for Computational Linguistics: EMNLP 2023
Multilingual Language Models offer a way to incorporate multiple languages in one model and utilize cross-language transfer learning to improve performance for different Natural Language Processing (NLP) tasks. Despite progress in multilingual models, not all languages are supported as well, particularly in low-resource settings. In this work, we investigate the linguistic representation of different languages in multilingual models. We start by asking the question which languages are supported in popular multilingual models and which languages are left behind. Then, for included languages, we look at models’ learned representations based on language family and dialect and try to understand how models’ learned representations for (1) seen and (2) unseen languages vary across different language groups. In addition, we test and analyze performance on downstream tasks such as text generation and Named Entity Recognition. We observe from our experiments that community-centered models—models that focus on languages of a given family or geographical location and are built by communities who speak them—perform better at distinguishing between languages in the same family for low-resource languages. Our paper contributes to the literature in understanding multilingual models and their shortcomings and offers insights on potential ways to improve them.