Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning

Quantum machine learning is a promising programming paradigm for the optimization of quantum algorithms in the current era of noisy intermediate-scale quantum computers. A fundamental challenge in quantum machine learning is generalization, as the designer targets performance under testing condition...

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Main Authors: Sangwoo Park, Osvaldo Simeone
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Transactions on Quantum Engineering
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10321713/
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author Sangwoo Park
Osvaldo Simeone
author_facet Sangwoo Park
Osvaldo Simeone
author_sort Sangwoo Park
collection DOAJ
description Quantum machine learning is a promising programming paradigm for the optimization of quantum algorithms in the current era of noisy intermediate-scale quantum computers. A fundamental challenge in quantum machine learning is generalization, as the designer targets performance under testing conditions while having access only to limited training data. Existing generalization analyses, while identifying important general trends and scaling laws, cannot be used to assign reliable and informative &#x201C;error bars&#x201D; to the decisions made by quantum models. In this article, we propose a general methodology that can reliably quantify the uncertainty of quantum models, irrespective of the amount of training data, the number of shots, the ansatz, the training algorithm, and the presence of quantum hardware noise. The approach, which builds on probabilistic conformal prediction (CP), turns an arbitrary, possibly small, number of shots from a pretrained quantum model into a set prediction, e.g., an interval, that <italic>provably</italic> contains the true target with any desired coverage level. Experimental results confirm the theoretical calibration guarantees of the proposed framework, referred to as quantum CP.
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spelling doaj.art-fa98064aded04f6da16d8b44a1af9f052024-02-20T00:01:34ZengIEEEIEEE Transactions on Quantum Engineering2689-18082024-01-01512410.1109/TQE.2023.333322410321713Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine LearningSangwoo Park0https://orcid.org/0000-0003-4091-7860Osvaldo Simeone1https://orcid.org/0000-0001-9898-3209King&#x0027;s Communications, Learning and Information Processing lab, Centre for Intelligent Information Processing Systems, Department of Engineering, King&#x0027;s College London, London, U.K.King&#x0027;s Communications, Learning and Information Processing lab, Centre for Intelligent Information Processing Systems, Department of Engineering, King&#x0027;s College London, London, U.K.Quantum machine learning is a promising programming paradigm for the optimization of quantum algorithms in the current era of noisy intermediate-scale quantum computers. A fundamental challenge in quantum machine learning is generalization, as the designer targets performance under testing conditions while having access only to limited training data. Existing generalization analyses, while identifying important general trends and scaling laws, cannot be used to assign reliable and informative &#x201C;error bars&#x201D; to the decisions made by quantum models. In this article, we propose a general methodology that can reliably quantify the uncertainty of quantum models, irrespective of the amount of training data, the number of shots, the ansatz, the training algorithm, and the presence of quantum hardware noise. The approach, which builds on probabilistic conformal prediction (CP), turns an arbitrary, possibly small, number of shots from a pretrained quantum model into a set prediction, e.g., an interval, that <italic>provably</italic> contains the true target with any desired coverage level. Experimental results confirm the theoretical calibration guarantees of the proposed framework, referred to as quantum CP.https://ieeexplore.ieee.org/document/10321713/Conformal prediction (CP)generalization analysisquantum machine learninguncertainty quantification
spellingShingle Sangwoo Park
Osvaldo Simeone
Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning
IEEE Transactions on Quantum Engineering
Conformal prediction (CP)
generalization analysis
quantum machine learning
uncertainty quantification
title Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning
title_full Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning
title_fullStr Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning
title_full_unstemmed Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning
title_short Quantum Conformal Prediction for Reliable Uncertainty Quantification in Quantum Machine Learning
title_sort quantum conformal prediction for reliable uncertainty quantification in quantum machine learning
topic Conformal prediction (CP)
generalization analysis
quantum machine learning
uncertainty quantification
url https://ieeexplore.ieee.org/document/10321713/
work_keys_str_mv AT sangwoopark quantumconformalpredictionforreliableuncertaintyquantificationinquantummachinelearning
AT osvaldosimeone quantumconformalpredictionforreliableuncertaintyquantificationinquantummachinelearning