Hyper Compressed Fine-Tuning of Large Foundation Models with Quantum Inspired Adapters

• URL: http://arxiv.org/abs/2502.06916v1
• Date: Mon, 10 Feb 2025 13:06:56 GMT
• Title: Hyper Compressed Fine-Tuning of Large Foundation Models with Quantum Inspired Adapters
• Authors: Snehal Raj, Brian Coyle,
• Abstract summary: emphQuantum-Inspired Adapters, a PEFT approach inspired by Hamming-weight quantum circuits from quantum machine learning literature. We test our proposed adapters by adapting large language models and large vision transformers on benchmark datasets.
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• Abstract: Fine-tuning pre-trained large foundation models for specific tasks has become increasingly challenging due to the computational and storage demands associated with full parameter updates. Parameter-Efficient Fine-Tuning (PEFT) methods address this issue by updating only a small subset of model parameters using adapter modules. In this work, we propose \emph{Quantum-Inspired Adapters}, a PEFT approach inspired by Hamming-weight preserving quantum circuits from quantum machine learning literature. These models can be both expressive and parameter-efficient by operating in a combinatorially large space while simultaneously preserving orthogonality in weight parameters. We test our proposed adapters by adapting large language models and large vision transformers on benchmark datasets. Our method can achieve 99.2\% of the performance of existing fine-tuning methods such LoRA with a 44x parameter compression on language understanding datasets like GLUE and VTAB. Compared to existing orthogonal fine-tuning methods such as OFT or BOFT, we achieve 98\% relative performance with 25x fewer parameters. This demonstrates competitive performance paired with a significant reduction in trainable parameters. Through ablation studies, we determine that combining multiple Hamming-weight orders with orthogonality and matrix compounding are essential for performant fine-tuning. Our findings suggest that Quantum-Inspired Adapters offer a promising direction for efficient adaptation of language and vision models in resource-constrained environments.

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