Papers by Jinho Choo
SCALE: Upscaled Continual Learning of Large Language Models (2026.findings-acl)
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Jin-woo Lee, Junhwa Choi, Bongkyu Hwang, Jinho Choo, Bogun Kim, Jeongseon Yi, Joonseok Lee, DongYoung Jung, Jaeseon Park, Kyoungwon Park, Suk-hoon Jung
| Challenge: | Recent discussions suggest that further progress will come from scaling the right structure, not merely parameters or data, while preserving acquired knowledge. |
| Approach: | They propose a width upscaling architecture that inserts lightweight expansions into linear modules while freezing all pre-trained parameters. |
| Outcome: | The proposed architecture reduces severe forgetting while learning new knowledge on a controlled synthetic biography benchmark. |
TLPO: Token-Level Policy Optimization for Mitigating Language Confusion in Large Language Models (2026.acl-long)
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| Challenge: | Prior mitigation approaches that optimize entire responses operate at the level of entire responses and can lead to unintended degradation of general model capabilities. |
| Approach: | They propose a fine-tuning framework to mitigate erroneous outputs by localizing and updating the policy at a granular level. |
| Outcome: | The proposed framework outperforms baselines on multiple multilingual LLMs across diverse languages while preserving task accuracy. |