Search Results for author: Kosuke Mitarai

Found 9 papers, 3 papers with code

Quantum Kernel t-Distributed Stochastic Neighbor Embedding

no code implementations1 Dec 2023 Yoshiaki Kawase, Kosuke Mitarai, Keisuke Fujii

Since quantum states are higher dimensional objects that can only be seen via observables, our visualization method, which inherits the similarity of quantum data, would be useful in understanding the behavior of quantum circuits and algorithms.

Data Visualization Quantum Machine Learning

Continuous optimization by quantum adaptive distribution search

no code implementations29 Nov 2023 Kohei Morimoto, Yusuke Takase, Kosuke Mitarai, Keisuke Fujii

In this paper, we introduce the quantum adaptive distribution search (QuADS), a quantum continuous optimization algorithm that integrates Grover adaptive search (GAS) with the covariance matrix adaptation - evolution strategy (CMA-ES), a classical technique for continuous optimization.

MNISQ: A Large-Scale Quantum Circuit Dataset for Machine Learning on/for Quantum Computers in the NISQ era

1 code implementation29 Jun 2023 Leonardo Placidi, Ryuichiro Hataya, Toshio Mori, Koki Aoyama, Hayata Morisaki, Kosuke Mitarai, Keisuke Fujii

In fact, also the Machine Learning research related to quantum computers undertakes a dual challenge: enhancing machine learning exploiting the power of quantum computers, while also leveraging state-of-the-art classical machine learning methodologies to help the advancement of quantum computing.

noisy quantum circuit classification (quantum ML, error mitigation) quantum circuit classification (classical ML) +1

The cross-sectional stock return predictions via quantum neural network and tensor network

no code implementations25 Apr 2023 Nozomu Kobayashi, Yoshiyuki Suimon, Koichi Miyamoto, Kosuke Mitarai

In this paper, we investigate the application of quantum and quantum-inspired machine learning algorithms to stock return predictions.

Parametric t-Stochastic Neighbor Embedding With Quantum Neural Network

no code implementations9 Feb 2022 Yoshiaki Kawase, Kosuke Mitarai, Keisuke Fujii

In this paper, we propose to use quantum neural networks for parametric t-SNE to reflect the characteristics of high-dimensional quantum data on low-dimensional data.

BIG-bench Machine Learning Data Visualization +1

Quantum tangent kernel

no code implementations4 Nov 2021 Norihito Shirai, Kenji Kubo, Kosuke Mitarai, Keisuke Fujii

In this work, we explore a quantum machine learning model with a deep parameterized quantum circuit and aim to go beyond the conventional quantum kernel method.

BIG-bench Machine Learning Quantum Machine Learning

Variational Quantum Algorithms

1 code implementation16 Dec 2020 M. Cerezo, Andrew Arrasmith, Ryan Babbush, Simon C. Benjamin, Suguru Endo, Keisuke Fujii, Jarrod R. McClean, Kosuke Mitarai, Xiao Yuan, Lukasz Cincio, Patrick J. Coles

Applications such as simulating complicated quantum systems or solving large-scale linear algebra problems are very challenging for classical computers due to the extremely high computational cost.

Methodology for replacing indirect measurements with direct measurements

no code implementations31 Dec 2018 Kosuke Mitarai, Keisuke Fujii

However, in certain cases, the indirect measurement can be reduced to the direct measurement, where a quantum state is destructively measured.

Quantum Physics

Quantum Circuit Learning

5 code implementations2 Mar 2018 Kosuke Mitarai, Makoto Negoro, Masahiro Kitagawa, Keisuke Fujii

Hybridizing a low-depth quantum circuit and a classical computer for machine learning, the proposed framework paves the way toward applications of near-term quantum devices for quantum machine learning.

Quantum Physics

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