Near-optimal Prediction Error Estimation for Quantum Machine Learning Models
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866917367494213632 |
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| author | Chen, Qiuhao Jiao, Yuling Li, Yinan Lu, Xiliang Yang, Jerry Zhijian |
| author_facet | Chen, Qiuhao Jiao, Yuling Li, Yinan Lu, Xiliang Yang, Jerry Zhijian |
| contents | Understanding the theoretical capabilities and limitations of quantum machine learning (QML) models to solve machine learning tasks is crucial to advancing both quantum software and hardware developments. Similarly to the classical setting, the performance of QML models can be significantly affected by the limited access to the underlying data set. Previous studies have focused on proving generalization error bounds for any QML models trained on a limited finite training set. We focus on the optimal QML models obtained by training them on a finite training set and establish a tight prediction error bound in terms of the number of trainable gates and the size of training sets. To achieve this, we derive covering number upper bounds and packing number lower bounds for the data re-uploading QML models and linear QML models, respectively, which may be of independent interest. We support our theoretical findings by numerically simulating the QML strategies for function approximation and quantum phase recognition. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_18208 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Near-optimal Prediction Error Estimation for Quantum Machine Learning Models Chen, Qiuhao Jiao, Yuling Li, Yinan Lu, Xiliang Yang, Jerry Zhijian Quantum Physics Understanding the theoretical capabilities and limitations of quantum machine learning (QML) models to solve machine learning tasks is crucial to advancing both quantum software and hardware developments. Similarly to the classical setting, the performance of QML models can be significantly affected by the limited access to the underlying data set. Previous studies have focused on proving generalization error bounds for any QML models trained on a limited finite training set. We focus on the optimal QML models obtained by training them on a finite training set and establish a tight prediction error bound in terms of the number of trainable gates and the size of training sets. To achieve this, we derive covering number upper bounds and packing number lower bounds for the data re-uploading QML models and linear QML models, respectively, which may be of independent interest. We support our theoretical findings by numerically simulating the QML strategies for function approximation and quantum phase recognition. |
| title | Near-optimal Prediction Error Estimation for Quantum Machine Learning Models |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.18208 |