A Data-Efficient Path to Multilingual LLMs: Language Expansion via Post-training PARAM$Δ$ Integration into Upcycled MoE
May 8, 2026·
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Hao Zhou
Tianhao Li
Zhijun Wang
Shuaijie She
Linjuan Wu
Hao-Ran Wei
Baosong Yang
Jiajun Chen
Shujian Huang
Type
Publication
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics