Justice Konjengbam
Author directory2026
PANINI: Improving Low-Resource English-Manipuri Translation in Two Scripts via rsLoRA and Three-Stream Self-Augmentation
Rudali Huidrom | Vikas Kumar | Hoomexsun Pangsatabam | Pinaki Das | K. Kabi Khanganba | Nongmaithem Zeno | Nicholas Khumukcham | Mangalton Okram | Justice Konjengbam | Sai Jamalpoor | Alex Khangembam | Anand Konjengbam | Vikram Goyal
Proceedings of the Eleventh Conference on Machine Translation
Rudali Huidrom | Vikas Kumar | Hoomexsun Pangsatabam | Pinaki Das | K. Kabi Khanganba | Nongmaithem Zeno | Nicholas Khumukcham | Mangalton Okram | Justice Konjengbam | Sai Jamalpoor | Alex Khangembam | Anand Konjengbam | Vikram Goyal
Proceedings of the Eleventh Conference on Machine Translation
We describe team PANINI’s submission to the WMT 2026 Shared Task on Low-Resource Indic Language Translation. We submit primary systems for English↔Manipuri (Meiteilon) in both the Bengali (mni Beng) and Meitei Mayek (mni Mtei) scripts, covering all four directions. Rather than one shared multilingual adapter, we train four independent rank-stabilized LoRA (rsLoRA) adapters over IndicTrans2-1B, one per direction. Each adapter is trained on the authentic bitext plus three filtered synthetic streams the model generates for itself: back-translation, forward translation, and iterative pseudo-labelling, with subword regularisation and a script-aware processing pipeline. Our system obtains a COMET score of 92.31 and a BERTScore of 98.85 on English↔Manipuri (Meitei Mayek), the best in the direction. On the into-English directions, it reaches a COMET of 82.90 for mni Beng↔en and 80.20 for mniMtei↔en. These results show that per-direction adapters combined with self-generated synthetic data are effective even when authentic bitext is limited to a few thousand sentence pairs, and that a script-aware processing pipeline is necessary to produce well-formed output in both Manipuri scripts. The code and resources are released on GitHub.