An Empirical Study on the Characteristics of Bias upon Context Length Variation for Bangla
This work addresses bias measurement for Bangla, a low-resource language, but is incremental as it extends existing methods and highlights an overlooked factor.
The study tackled the problem of measuring gender bias in Bangla language models, creating a dataset and adapting methods to show that bias metrics depend on context length, with variations observed in experiments.
Pretrained language models inherently exhibit various social biases, prompting a crucial examination of their social impact across various linguistic contexts due to their widespread usage. Previous studies have provided numerous methods for intrinsic bias measurements, predominantly focused on high-resource languages. In this work, we aim to extend these investigations to Bangla, a low-resource language. Specifically, in this study, we (1) create a dataset for intrinsic gender bias measurement in Bangla, (2) discuss necessary adaptations to apply existing bias measurement methods for Bangla, and (3) examine the impact of context length variation on bias measurement, a factor that has been overlooked in previous studies. Through our experiments, we demonstrate a clear dependency of bias metrics on context length, highlighting the need for nuanced considerations in Bangla bias analysis. We consider our work as a stepping stone for bias measurement in the Bangla Language and make all of our resources publicly available to support future research.