Search Results for author: Leonardo Banchi

Found 11 papers, 1 papers with code

Quantum Adversarial Learning for Kernel Methods

no code implementations8 Apr 2024 Giuseppe Montalbano, Leonardo Banchi

We show that hybrid quantum classifiers based on quantum kernel methods and support vector machines are vulnerable against adversarial attacks, namely small engineered perturbations of the input data can deceive the classifier into predicting the wrong result.

Data Augmentation

Accuracy vs Memory Advantage in the Quantum Simulation of Stochastic Processes

no code implementations20 Dec 2023 Leonardo Banchi

Many inference scenarios rely on extracting relevant information from known data in order to make future predictions.

Statistical Complexity of Quantum Learning

no code implementations20 Sep 2023 Leonardo Banchi, Jason Luke Pereira, Sharu Theresa Jose, Osvaldo Simeone

Recent years have seen significant activity on the problem of using data for the purpose of learning properties of quantum systems or of processing classical or quantum data via quantum computing.

Learning Theory

Time-Warping Invariant Quantum Recurrent Neural Networks via Quantum-Classical Adaptive Gating

no code implementations19 Jan 2023 Ivana Nikoloska, Osvaldo Simeone, Leonardo Banchi, Petar Veličković

Adaptive gating plays a key role in temporal data processing via classical recurrent neural networks (RNN), as it facilitates retention of past information necessary to predict the future, providing a mechanism that preserves invariance to time warping transformations.

Online Convex Optimization of Programmable Quantum Computers to Simulate Time-Varying Quantum Channels

no code implementations9 Dec 2022 Hari Hara Suthan Chittoor, Osvaldo Simeone, Leonardo Banchi, Stefano Pirandola

Simulating quantum channels is a fundamental primitive in quantum computing, since quantum channels define general (trace-preserving) quantum operations.

Generalization in Quantum Machine Learning: a Quantum Information Perspective

no code implementations17 Feb 2021 Leonardo Banchi, Jason Pereira, Stefano Pirandola

Here we establish a link between quantum machine learning classification and quantum hypothesis testing (state and channel discrimination) and then show that the accuracy and generalization capability of quantum classifiers depend on the (R\'enyi) mutual informations $I(C{:}Q)$ and $I_2(X{:}Q)$ between the quantum state space $Q$ and the classical parameter space $X$ or class space $C$.

BIG-bench Machine Learning Classification +1

Ultimate Limits of Thermal Pattern Recognition

no code implementations21 Oct 2020 Cillian Harney, Leonardo Banchi, Stefano Pirandola

Quantum Channel Discrimination (QCD) presents a fundamental task in quantum information theory, with critical applications in quantum reading, illumination, data-readout and more.

Image Classification

Quantum-enhanced barcode decoding and pattern recognition

no code implementations7 Oct 2020 Leonardo Banchi, Quntao Zhuang, Stefano Pirandola

Quantum hypothesis testing is one of the most fundamental problems in quantum information theory, with crucial implications in areas like quantum sensing, where it has been used to prove quantum advantage in a series of binary photonic protocols, e. g., for target detection or memory cell readout.

Two-sample testing

Noise-Resilient Variational Hybrid Quantum-Classical Optimization

no code implementations13 Dec 2019 Laura Gentini, Alessandro Cuccoli, Stefano Pirandola, Paola Verrucchi, Leonardo Banchi

Variational hybrid quantum-classical optimization represents one of the most promising avenue to show the advantage of nowadays noisy intermediate-scale quantum computers in solving hard problems, such as finding the minimum-energy state of a Hamiltonian or solving some machine-learning tasks.

Supervised learning of time-independent Hamiltonians for gate design

5 code implementations19 Mar 2018 Luca Innocenti, Leonardo Banchi, Alessandro Ferraro, Sougato Bose, Mauro Paternostro

We show how the same conditions can be used to solve the problem numerically, via supervised learning techniques.

Quantum Physics

Supervised quantum gate "teaching" for quantum hardware design

no code implementations20 Jul 2016 Leonardo Banchi, Nicola Pancotti, Sougato Bose

We show how to train a quantum network of pairwise interacting qubits such that its evolution implements a target quantum algorithm into a given network subset.

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