Mitigating Catastrophic Forgetting in Target Language Adaptation of LLMs via Source-Shielded Updates

arXiv — cs.CLFriday, December 5, 2025 at 5:00:00 AM
  • A new approach called Source-Shielded Updates (SSU) has been introduced to mitigate catastrophic forgetting in large language models (LLMs) during target language adaptation, utilizing only unlabeled data. This method employs a selective parameter update strategy that preserves essential source knowledge while adapting to new languages, demonstrating effectiveness across diverse linguistic contexts.
  • The implementation of SSU is significant as it addresses the challenge of expanding linguistic diversity in LLMs, which is crucial for enhancing global accessibility. By reducing reliance on costly labeled data, this innovation could facilitate broader adoption and usability of LLMs in various languages.
  • This development aligns with ongoing efforts in the AI community to improve the adaptability and safety of LLMs. Techniques such as uncertainty quantification and policy violation detection are also being explored to enhance model reliability and performance, reflecting a growing focus on ethical AI practices and the need for robust frameworks in machine learning.
— via World Pulse Now AI Editorial System

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