Low-Rank Adaptation for Multilingual Summarization: An Empirical Study

• URL: http://arxiv.org/abs/2311.08572v2
• Date: Sun, 31 Mar 2024 17:01:34 GMT
• Title: Low-Rank Adaptation for Multilingual Summarization: An Empirical Study
• Authors: Chenxi Whitehouse, Fantine Huot, Jasmijn Bastings, Mostafa Dehghani, Chu-Cheng Lin, Mirella Lapata,
• Abstract summary: We investigate the potential of. Efficient Fine-Tuning, focusing on Low-Rank Adaptation (LoRA) in the domain of multilingual summarization. We conduct an extensive study across different data availability scenarios, including high- and low-data settings, and cross-lingual transfer. Our findings reveal that LoRA is competitive with full fine-tuning when trained with high quantities of data, and excels in low-data scenarios and cross-lingual transfer.
• Score: 60.541168233698194
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Although the advancements of pre-trained Large Language Models have significantly accelerated recent progress in NLP, their ever-increasing size poses significant challenges for conventional fine-tuning, especially in memory-intensive tasks. We investigate the potential of Parameter-Efficient Fine-Tuning, focusing on Low-Rank Adaptation (LoRA), in the domain of multilingual summarization, a task that is both challenging (due to typically long inputs), and relatively unexplored. We conduct an extensive study across different data availability scenarios, including high- and low-data settings, and cross-lingual transfer, leveraging models of different sizes. Our findings reveal that LoRA is competitive with full fine-tuning when trained with high quantities of data, and excels in low-data scenarios and cross-lingual transfer. We also study different strategies for few-shot cross-lingual transfer, finding that continued LoRA tuning outperforms full fine-tuning and the dynamic composition of language-specific LoRA modules.

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