Task-Lens: Cross-Task Utility Based Speech Dataset Profiling for Low-Resource Indian Languages

Swati Sharma, Divya V. Sharma, Anubha Gupta


Abstract
The rising demand for inclusive speech technologies amplifies the need for multilingual datasets for Natural Language Processing (NLP) research. However, limited awareness of existing task-specific resources in low-resource languages hinders research. This challenge is especially acute in linguistically diverse countries, such as India. Cross-task profiling of existing Indian speech datasets can alleviate the data scarcity challenge. This involves investigating the utility of datasets across multiple downstream tasks rather than focusing on a single task. Prior surveys typically catalogue datasets for a single task, leaving comprehensive cross-task profiling as an open opportunity. Therefore, we propose Task-Lens, a cross-task survey that assesses the readiness of 50 Indian speech datasets spanning 26 languages for nine downstream speech tasks. First, we analyze which datasets contain metadata and properties suitable for specific tasks. Next, we propose task-aligned enhancements to unlock datasets to their full downstream potential. Finally, we identify tasks and Indian languages that are critically underserved by current resources. Our findings reveal that many Indian speech datasets contain untapped metadata that can support multiple downstream tasks. By uncovering cross-task linkages and gaps, Task-Lens enables researchers to explore the broader applicability of existing datasets and to prioritize dataset creation for underserved tasks and languages.
Anthology ID:
2026.lrec-main.467
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:
5883–5895
Language:
URL:
https://preview.aclanthology.org/ingest-lrec/2026.lrec-main.467/
DOI:
Bibkey:
Cite (ACL):
Swati Sharma, Divya V. Sharma, and Anubha Gupta. 2026. Task-Lens: Cross-Task Utility Based Speech Dataset Profiling for Low-Resource Indian Languages. International Conference on Language Resources and Evaluation, main:5883–5895.
Cite (Informal):
Task-Lens: Cross-Task Utility Based Speech Dataset Profiling for Low-Resource Indian Languages (Sharma et al., LREC 2026)
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https://preview.aclanthology.org/ingest-lrec/2026.lrec-main.467.pdf
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