Statistical Limits of Supervised Quantum Learning

• URL: http://arxiv.org/abs/2001.10477v3
• Date: Thu, 29 Oct 2020 09:36:24 GMT
• Title: Statistical Limits of Supervised Quantum Learning
• Authors: Carlo Ciliberto, Andrea Rocchetto, Alessandro Rudi, Leonard Wossnig
• Abstract summary: We show that if the bound on the accuracy is taken into account, quantum machine learning algorithms for supervised learning cannot achieve polylogarithmic runtimes in the input dimension. We conclude that, when no further assumptions on the problem are made, quantum machine learning algorithms for supervised learning can have at most speedups over efficient classical algorithms.
• Score: 90.0289160657379
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Within the framework of statistical learning theory it is possible to bound the minimum number of samples required by a learner to reach a target accuracy. We show that if the bound on the accuracy is taken into account, quantum machine learning algorithms for supervised learning---for which statistical guarantees are available---cannot achieve polylogarithmic runtimes in the input dimension. We conclude that, when no further assumptions on the problem are made, quantum machine learning algorithms for supervised learning can have at most polynomial speedups over efficient classical algorithms, even in cases where quantum access to the data is naturally available.

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