STAR-IL: A Dataset for Style-Aware Machine Translation of Product Reviews in Indian Languages

Ketaki Shetye, Dipti Misra Sharma, Parameswari Krishnamurthy


Abstract
Product reviews on e-commerce platforms are a critical form of user-generated content that influence consumer decisions. However, these reviews are predominantly in English, creating a significant accessibility barrier for users who are not fluent in English. When translating into major Indian languages using the current models, the outputs often fail to capture domain-specific features and colloquial style, resulting in stylistically unnatural texts. To address this gap, we introduce STAR-IL, a human-annotated, multilingual, parallel corpus for style-aware translation of product reviews. We evaluate the performance of several state-of-the-art models on our dataset for the task of product review translation. Our experiments show that models fine-tuned on STAR-IL achieve significant average performance gain of 5.77 points in BLEU and 3.78 points in COMET, when compared to their baselines, across all languages. Our dataset provides a valuable benchmark for future research in style-aware product review translation. The STAR-IL dataset is publicly available at https://github.com/ltrc/STAR-IL-Corpus.
Anthology ID:
2026.lrec-1.691
Volume:
Proceedings of the Fifteenth Language Resources and Evaluation Conference
Month:
May
Year:
2026
Address:
Palma de Mallorca, Spain
Editors:
Stelios Piperidis, Núria Bel, Henk van den Heuvel, Nancy Ide, Simon Krek, Antonio Toral
Venue:
LREC
SIG:
Publisher:
ELRA Language Resource Association
Note:
Pages:
8780–8793
Language:
External URL:
https://lrec.elra.info/lrec2026-main-691
DOI:
10.63317/4oq85vioi2tu
Bibkey:
Cite (ACL):
Ketaki Shetye, Dipti Misra Sharma, and Parameswari Krishnamurthy. 2026. STAR-IL: A Dataset for Style-Aware Machine Translation of Product Reviews in Indian Languages. In Proceedings of the Fifteenth Language Resources and Evaluation Conference, pages 8780–8793, Palma de Mallorca, Spain. ELRA Language Resource Association.
Cite (Informal):
STAR-IL: A Dataset for Style-Aware Machine Translation of Product Reviews in Indian Languages (Shetye et al., LREC 2026)
Copy Citation: