Zobrazeno 1 - 10 of 34 pro vyhledávání: '"Kazuki Koga"'
1
Akademický článek
COMPUTING WEAK DISTANCE BETWEEN THE 2-SPHERE AND ITS NONSMOOTH APPROXIMATIONS.
Autor: KAZUKI KOGA
Publikováno v: SIAM Journal on Scientific Computing; 2024, Vol. 46 Issue 1, pA360-A375, 16p
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2
Akademický článek
Simple Black-Box Universal Adversarial Attacks on Deep Neural Networks for Medical Image Classification
Autor: Kazuki Koga, Kazuhiro Takemoto
Publikováno v: Algorithms, Vol 15, Iss 5, p 144 (2022)
Universal adversarial attacks, which hinder most deep neural network (DNN) tasks using only a single perturbation called universal adversarial perturbation (UAP), are a realistic security threat to the practical application of a DNN for medical imagi
Externí odkaz: https://doaj.org/article/4ccae539b7d3428484f312beab794b9b
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5
Akademický článek
Vulnerability of deep neural networks for detecting COVID-19 cases from chest X-ray images to universal adversarial attacks.
Autor: Hokuto Hirano, Kazuki Koga, Kazuhiro Takemoto
Publikováno v: PLoS ONE, Vol 15, Iss 12, p e0243963 (2020)
Owing the epidemic of the novel coronavirus disease 2019 (COVID-19), chest X-ray computed tomography imaging is being used for effectively screening COVID-19 patients. The development of computer-aided systems based on deep neural networks (DNNs) has
Externí odkaz: https://doaj.org/article/8af5f031c0564e29981a6a93b387a8dd
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6
A non-immunocompromised host with nontuberculous mycobacteria-associated tubulointerstitial nephritis
Autor: Soken Hattori, Kiichiro Fujisaki, Yusuke Nakamata, Takuro Kometani, Takafumi Nakashima, Kazuki Koga, Sho Sasaki, Ryosuke Yamate, Takashi Matono, Akihiro Tsuchimoto, Toshiaki Nakano
Publikováno v: CEN Case Rep
A 50-year-old man was admitted to our hospital with the complaints of fever and general malaise. He had no history of human immunodeficiency virus (HIV) infection or treatment with immunosuppressive agents. We performed renal biopsy to investigate po
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99750366cda533a7293934a754d3c040
https://doi.org/10.1007/s13730-022-00690-6
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8
Akademický článek
Identification of Atmospheric Blocking with Morphological Type by Topological Flow Data Analysis.
Autor: Tomoki UDA, Takashi SAKAJO, Masaru INATSU, Kazuki KOGA
Publikováno v: Journal of the Meteorological Society of Japan; Oct2021, Vol. 99 Issue 5, p1169-1183, 15p
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9
Vulnerability of deep neural networks for detecting COVID-19 cases from chest X-ray images to universal adversarial attacks
Autor: Kazuki Koga, Kazuhiro Takemoto, Hokuto Hirano
Publikováno v: PLoS ONE
PLoS ONE, Vol 15, Iss 12, p e0243963 (2020)
Under the epidemic of the novel coronavirus disease 2019 (COVID-19), chest X-ray computed tomography imaging is being used for effectively screening COVID-19 patients. The development of computer-aided systems based on deep neural networks (DNNs) has
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8cb3c1bd5eb310d9690f096944f826f
http://arxiv.org/abs/2005.11061
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10
Low dissipative finite difference hybrid scheme by discontinuity sensor of detecting shock and material interface in multi-component compressible flows
Autor: Kazuki Koga, Takeo Kajishima
Publikováno v: Journal of Computational Physics. 448:110757
A discontinuity sensor for shock waves and material interfaces is proposed to construct a low dissipative scheme that consists of a weighted compact finite nonlinear scheme (WCNS) and central difference to address compressible multi-component flows.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1f2a2e7f549feed24401c0aad4b165c
https://doi.org/10.1016/j.jcp.2021.110757
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