Zobrazeno 1 - 10
of 10 939
pro vyhledávání: '"Itoi, So"'
Model updating of engineering systems inevitably involves handling both aleatory or inherent randomness and epistemic uncertainties or uncertainities arising from a lack of knowledge or information about the system. Addressing these uncertainties pos
Externí odkaz:
http://arxiv.org/abs/2410.03150
Publikováno v:
Computer Methods in Applied Mechanics and Engineering,Volume 429, 1 September 2024, 117148
A novel framework for Bayesian structural model updating is presented in this study. The proposed method utilizes the surrogate unimodal encoders of a multimodal variational autoencoder (VAE). The method facilitates an approximation of the likelihood
Externí odkaz:
http://arxiv.org/abs/2406.09051
We develop a site-specific ground-motion model (GMM) for crustal earthquakes in Japan that can directly model the probability distribution of ground motion acceleration time histories based on generative adversarial networks (GANs). The proposed mode
Externí odkaz:
http://arxiv.org/abs/2404.15640
Publikováno v:
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering, Vol. 10, No. 4, pp. 04024072, 2024
This study presents a novel approach to quantifying uncertainties in Bayesian model updating, which is effective in sparse or single observations. Conventional uncertainty quantification metrics such as the Euclidean and Bhattacharyya distance-based
Externí odkaz:
http://arxiv.org/abs/2404.03871
The interpolation method for mean field spin glass models developed by Guerra and Talagrand is extended to a quantum mean field spin glass model. This extension enables us to obtain both replica-symmetric (RS) and one step replica-symmetry breaking (
Externí odkaz:
http://arxiv.org/abs/2403.02699
Autor:
Itoi, Miho, Yoshimi, Kazuyoshi, Ma, Hanming, Misawa, Takahiro, Tsumuraya, Takao, Bhoi, Dilip, Komatsu, Tokutaro, Mori, Hatsumi, Uwatoko, Yoshiya, Seo, Hitoshi
We present a combined experimental and theoretical study on the quasi-one-dimensional organic conductor (TMTTF)$_2$PF$_6$, and elucidate the variation of its physical properties under pressure. We fully resolve the crystal structure by single crystal
Externí odkaz:
http://arxiv.org/abs/2403.13816
Publikováno v:
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering, 10 (2024), 04024055
Bayesian model updating facilitates the calibration of analytical models based on observations and the quantification of uncertainties in model parameters such as stiffness and mass. This process significantly enhances damage assessment and response
Externí odkaz:
http://arxiv.org/abs/2401.17932
Publikováno v:
Structural Safety 108 (2024) 102442
This paper proposes a multitask learning framework for probabilistic model updating by jointly using strain and acceleration measurements. This framework can enhance the structural damage assessment and response prediction of existing steel frame str
Externí odkaz:
http://arxiv.org/abs/2401.17888
Autor:
Itoi, C., Sakamoto, Y.
Publikováno v:
J. Phys. A: Math. Theor. 57, 045001 (2024)
Nishimori's gauge theory is extended to the quantum XYZ $p$-spin glass model in finite dimensions. This enables us to obtain useful correlation equalities, which show also that Duhamel correlation functions at an arbitrary temperature are bounded by
Externí odkaz:
http://arxiv.org/abs/2312.13042
Publikováno v:
Journal of Statistical Physics, 198,28,1-30,(2024)
We establish relations between different characterizations of order in spin glass models. We first prove that the broadening of the replica overlap distribution indicated by a nonzero standard deviation of the replica overlap $R^{1,2}$ implies the no
Externí odkaz:
http://arxiv.org/abs/2310.04775