Divide et impera: hybrid multinomial classifiers from quantum binary models

Fuente: arXiv
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Hauptverfasser: Roncallo, Simone, Morgillo, Angela Rosy, Lloyd, Seth, Macchiavello, Chiara, Maccone, Lorenzo
Format: Preprint
Veröffentlicht: 2026
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author Roncallo, Simone
Morgillo, Angela Rosy
Lloyd, Seth
Macchiavello, Chiara
Maccone, Lorenzo
author_facet Roncallo, Simone
Morgillo, Angela Rosy
Lloyd, Seth
Macchiavello, Chiara
Maccone, Lorenzo
contents We investigate how to combine a collection of quantum binary models into a multinomial classifier. We employ a hybrid approach, adopting strategies like one-vs-one, one-vs-rest and a binary decision tree. We benchmark each method, by emphasizing their computational overhead and their impact on the quantum advantage. By comparison against a classical binary model (generalized using the same approach), we show that the decision tree represents a cost-effective solution, achieving similar accuracies to other methods with an overhead at most logarithmic in the total number of classes.
format Preprint
id arxiv_https___arxiv_org_abs_2604_08094
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Divide et impera: hybrid multinomial classifiers from quantum binary models
Roncallo, Simone
Morgillo, Angela Rosy
Lloyd, Seth
Macchiavello, Chiara
Maccone, Lorenzo
Quantum Physics
We investigate how to combine a collection of quantum binary models into a multinomial classifier. We employ a hybrid approach, adopting strategies like one-vs-one, one-vs-rest and a binary decision tree. We benchmark each method, by emphasizing their computational overhead and their impact on the quantum advantage. By comparison against a classical binary model (generalized using the same approach), we show that the decision tree represents a cost-effective solution, achieving similar accuracies to other methods with an overhead at most logarithmic in the total number of classes.
title Divide et impera: hybrid multinomial classifiers from quantum binary models
topic Quantum Physics
url https://arxiv.org/abs/2604.08094