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Quantum algorithms for anomaly detection using amplitude estimation

Author

Listed:
  • Guo, Mingchao
  • Liu, Hailing
  • Li, Yongmei
  • Li, Wenmin
  • Gao, Fei
  • Qin, Sujuan
  • Wen, Qiaoyan

Abstract

Anomaly detection, as an important branch of machine learning, plays a critical role in fraud detection, health care, intrusion detection, military surveillance, etc. An anomaly detection algorithm based on density estimation (called ADDE algorithm) is one of the widely used algorithms. However, the ADDE algorithm is computationally expensive when processing big data sets. To solve this problem, in this paper, we propose an efficient quantum ADDE algorithm based on amplitude estimation. It is shown that our algorithm achieves exponential speedup on the number of training data points M over its classical counterpart. Besides, the idea of our algorithm can be applied to accelerate the anomaly detection algorithm based on kernel principal component analysis (called ADKPCA algorithm), which also has a wide range of applications. Our algorithm shows exponential speedup on M compared with its classical counterpart.

Suggested Citation

  • Guo, Mingchao & Liu, Hailing & Li, Yongmei & Li, Wenmin & Gao, Fei & Qin, Sujuan & Wen, Qiaoyan, 2022. "Quantum algorithms for anomaly detection using amplitude estimation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 604(C).
    • Handle: RePEc:eee:phsmap:v:604:y:2022:i:c:s0378437122005957
    DOI: 10.1016/j.physa.2022.127936
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    References listed on IDEAS

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    1. Jacob Biamonte & Peter Wittek & Nicola Pancotti & Patrick Rebentrost & Nathan Wiebe & Seth Lloyd, 2017. "Quantum machine learning," Nature, Nature, vol. 549(7671), pages 195-202, September.
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    Cited by:

    1. Wang, Sha-Sha & Liu, Hai-Ling & Song, Yan-Qi & Gao, Fei & Qin, Su-Juan & Wen, Qiao-Yan, 2023. "Quantum alternating operator ansatz for solving the minimum exact cover problem," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 626(C).
    2. Yu, Kai & Lin, Song & Guo, Gong-De, 2023. "Quantum dimensionality reduction by linear discriminant analysis," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 614(C).
    3. Ning, Tong & Yang, Youlong & Du, Zhenye, 2023. "Quantum kernel logistic regression based Newton method," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 611(C).
    4. Li, Jing & Gao, Fei & Lin, Song & Guo, Mingchao & Li, Yongmei & Liu, Hailing & Qin, Sujuan & Wen, QiaoYan, 2023. "Quantum k-fold cross-validation for nearest neighbor classification algorithm," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 611(C).

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