Zobrazeno 1 - 10
of 1 825
pro vyhledávání: '"Iwazaki, A."'
Autor:
Iwazaki, Shogo, Takeno, Shion
This paper studies a non-stationary kernelized bandit (KB) problem, also called time-varying Bayesian optimization, where one seeks to minimize the regret under an unknown reward function that varies over time. In particular, we focus on a near-optim
Externí odkaz:
http://arxiv.org/abs/2410.16052
Autor:
Iwazaki, Aiichi
Plateau-plateau transition in integer quantum Hall effect is a phase transition between metal and insulator. The behavior how the width $\Delta B$ of the transition changes with temperature and frequency of radiations imposed has been explored extens
Externí odkaz:
http://arxiv.org/abs/2401.07180
Autor:
Iwazaki, Aiichi
Axion dark matter is converted to electromagnetic radiations in the presence of strong magnetic field. The radiations possibly give rise to non trivial phenomena in condensed matter physics. Especially, we discuss that saturation of plateau-plateau t
Externí odkaz:
http://arxiv.org/abs/2306.14475
Publikováno v:
Phys. Rev. B 108, L241108 (2023)
We present a framework for analyzing Mott insulators using a material-based tight-binding model. We start with a realistic multiorbital Hubbard model and derive an effective model for the localized electrons through the second-order perturbation theo
Externí odkaz:
http://arxiv.org/abs/2301.09824
Autor:
B. Moon, W. Korten, K. Wimmer, P. Doornenbal, T.R. Rodríguez, N. Aoi, H. Baba, F. Browne, C. Campbell, S. Chen, H. Crawford, H. de Witte, C. Fransen, H. Hess, E. Ideguchi, S. Iwazaki, J. Kim, N. Kitamura, A. Kohda, T. Koiwai, B. Mauss, R. Mizuno, M. Niikura, T. Parry, P. Reiter, H. Sakurai, D. Suzuki, R. Taniuchi, S. Thiel, Y. Yamamoto
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139047- (2024)
Lifetimes of excited states in the very exotic nuclides 108Zr68 and 110Zr70 were measured for the first time applying high-resolution in-beam γ-ray spectroscopy at relativistic energies. The experiment was carried out at the Radioactive Isotope Beam
Externí odkaz:
https://doaj.org/article/58d3f316b8714fa5abf2ee39a3937992
Vector graphic documents present multiple visual elements, such as images, shapes, and texts. Choosing appropriate colors for multiple visual elements is a difficult but crucial task for both amateurs and professional designers. Instead of creating a
Externí odkaz:
http://arxiv.org/abs/2209.10820
Publikováno v:
in IEEE Access, vol. 10, pp. 120023-120034, 2022
There is increasing interest in the use of multimodal data in various web applications, such as digital advertising and e-commerce. Typical methods for extracting important information from multimodal data rely on a mid-fusion architecture that combi
Externí odkaz:
http://arxiv.org/abs/2209.03126
Autor:
Iwazaki, Aiichi
It has recently been observed that solar spicules covering almost of all solar surface have strong magnetic field $B\sim 10^2$G. They are supposed to be plasma jets emitted from chromosphere and they arrive up to $\sim 10^4$km. Their electron number
Externí odkaz:
http://arxiv.org/abs/2206.07866
Autor:
Iwazaki, Anderson Yoshiaki, Santos, Vinicius dos, Felizardo, Katia Romero, de Souza, /'Erica Ferreira, Valentim, Natasha M. C., Nakagawa, Elisa Yumi
Graduate courses can provide specialized knowledge for Ph.D. and Master's students and contribute to develop their hard and soft skills. At the same time, Systematic Literature Review (SLR) has been increasingly adopted in the computing area as a val
Externí odkaz:
http://arxiv.org/abs/2205.07847
Autor:
Iwazaki, Aiichi
Axion is a promising candidate of dark matter in the universe. A fraction of dark matter axion may forms axion star with radius $\sim 10^2$km. We show that the axion star emits radiation burst by the collision with K and M types main sequence star in
Externí odkaz:
http://arxiv.org/abs/2203.07579