Octavius: Mitigating Task Interference in MLLMs via LoRA-MoE

• URL: http://arxiv.org/abs/2311.02684v3
• Date: Mon, 25 Nov 2024 07:07:45 GMT
• Title: Octavius: Mitigating Task Interference in MLLMs via LoRA-MoE
• Authors: Zeren Chen, Ziqin Wang, Zhen Wang, Huayang Liu, Zhenfei Yin, Si Liu, Lu Sheng, Wanli Ouyang, Yu Qiao, Jing Shao,
• Abstract summary: Large Language Models (LLMs) can extend their zero-shot capabilities to multimodal learning through instruction tuning. negative conflicts and interference may have a worse impact on performance. We combine the well-known Mixture-of-Experts (MoE) and one of the representative PEFT techniques, i.e., LoRA, designing a novel LLM-based decoder, called LoRA-MoE, for multimodal learning.
• Score: 83.00018517368973
• License:
• Abstract: Recent studies have demonstrated Large Language Models (LLMs) can extend their zero-shot generalization capabilities to multimodal learning through instruction tuning. As more modalities and downstream tasks are introduced, negative conflicts and interference may have a worse impact on performance. While this phenomenon has been overlooked in previous work, we propose a novel and extensible framework, called Octavius, for comprehensive studies and experimentation on multimodal learning with Multimodal Large Language Models (MLLMs). Specifically, we combine the well-known Mixture-of-Experts (MoE) and one of the representative PEFT techniques, i.e., LoRA, designing a novel LLM-based decoder, called LoRA-MoE, for multimodal learning. To the best of our knowledge, we are one of the pioneering efforts to introduce MoE into MLLMs to address this problem. The experimental results (about 20% improvement) have shown the effectiveness and versatility of our design in various 2D and 3D downstream tasks. Code and datasets are available at https://openlamm.github.io/tutorial/.

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