Papers by Pranjal A Chitale
UPDESH: Synthesizing Grounded Instruction Tuning Data for 13 Indic Languages (2026.acl-long)
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Pranjal A Chitale, Varun Gumma, Sanchit Ahuja, Prashant Kodali, Manan Uppadhyay, Deepthi Sudharsan, Sunayana Sitaram
| Challenge: | Developing culturally grounded multilingual AI systems is challenging for low-resource languages . synthetic data is underexplored, but its effectiveness in multilingual and multicultural contexts is understudied . |
| Approach: | They propose a top-up synthetic data generation framework grounded in Wikipedia content . they use 9.5M data points across 13 Indian languages and English to generate a high-quality dataset . |
| Outcome: | The proposed model improves on NLG tasks and narrows performance gaps with high-resource languages. |
HORIZON: A Benchmark for In-the-wild User Behaviour Modeling (2026.findings-acl)
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| Challenge: | Existing user modeling benchmarks focus on short sessions and next-item prediction within a single domain. |
| Approach: | They propose a benchmark that reformulates user modeling along three axes . it covers 54M users and 35M items, enabling pretraining and evaluation . they propose tasks and evaluation setups that better reflect real-world deployment scenarios . |
| Outcome: | The proposed benchmark covers 54M users and 35M items, and is based on Amazon Reviews. |
Towards Inducing Long-Context Abilities in Multilingual Neural Machine Translation Models (2025.naacl-long)
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| Challenge: | Neural Machine Translation models traditionally use Sinusoidal Positional Embeddings . retraining with newer methods like ROPE or ALIBI is computationally expensive . |
| Approach: | They propose to transition NMT models from Sinusoidal to Relative PEs without compromising performance. |
| Outcome: | The proposed approach outperforms models trained with Sinusoidal PEs on document-level benchmarks . the results show that parameter-efficient fine-tuning can facilitate the transition . |
Evaluating the Effectiveness and Scalability of LLM-Based Data Augmentation for Retrieval (2025.emnlp-main)
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| Challenge: | Existing research does not explore key factors such as optimal augmentation scale and the necessity of using large augmentation models. |
| Approach: | They propose to use LLMs to augment compact dual-encoder models to improve retrieval performance. |
| Outcome: | The proposed approach improves retrieval performance but its benefits diminish beyond a certain scale even with diverse augmentation strategies. |