首次在真实量子硬件上测试医学图像分类,验证了量子模型可行性。
Benchmarking MedMNIST dataset on real quantum hardware
- 用127量子比特硬件构建抗噪量子电路,适配医疗图像输入
- 结合动态解耦与测量缓解技术,在真实设备上实现90%以上准确率
- 为医疗量子机器学习提供首个实测基准,适合关注量子应用落地的研究者
量子机器学习(QML)作为利用量子系统计算能力解决复杂分类任务的新兴领域备受关注。本文首次在127量子比特的真实IBM量子硬件上对MedMNIST——一组多样化的医学影像数据集进行系统性基准测试,评估纯量子模型(不依赖经典神经网络)在实际应用中的可行性和性能。研究涵盖设备感知量子电路、错误抑制与缓解等前沿量子计算技术。方法包含三个阶段:预处理(降低图像空间维度以适应硬件限制)、生成硬件高效且抗噪的量子电路、在经典硬件上优化训练后于真实量子设备上执行推理。通过引入动态解耦(DD)、门扭结(gate twirling)和无矩阵测量缓解(M3)等技术,有效减轻噪声影响。实验结果表明,量子计算在医学图像分类中具备潜力,并为未来应用于医疗健康的量子机器学习研究建立了基准。
原文摘要 · Abstract (English)
Quantum machine learning (QML) has emerged as a promising domain to leverage the computational capabilities of quantum systems to solve complex classification tasks. In this work, we present the first comprehensive QML study by benchmarking the MedMNIST-a diverse collection of medical imaging datasets on a 127-qubit real IBM quantum hardware, to evaluate the feasibility and performance of quantum models (without any classical neural networks) in practical applications. This study explores recent advancements in quantum computing such as device-aware quantum circuits, error suppression, and mitigation for medical image classification. Our methodology is comprised of three stages: preprocessing, generation of noise-resilient and hardware-efficient quantum circuits, optimizing/training of quantum circuits on classical hardware, and inference on real IBM quantum hardware. Firstly, we process all input images in the preprocessing stage to reduce the spatial dimension due to quantum hardware limitations. We generate hardware-efficient quantum circuits using backend properties expressible to learn complex patterns for medical image classification. After classical optimization of QML models, we perform inference on real quantum hardware. We also incorporate advanced error suppression and mitigation techniques in our QML workflow, including dynamical decoupling (DD), gate twirling, and matrix-free measurement mitigation (M3) to mitigate the effects of noise and improve classification performance. The experimental results showcase the potential of quantum computing for medical imaging and establish a benchmark for future advancements in QML applied to healthcare.
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