Results 111 to 120 of about 1,528,330 (141)

Less is more: selection from a small set of options improves BCI velocity control. [PDF]

J Neural Eng
Alcolea PI, Ma X, Bodkin K, Miller LE, Danziger ZC.   +4 more
europepmc   +1 more source

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Strong Scattering Elastic Full Waveform Inversion With the Envelope Fréchet Derivative

IEEE Geoscience and Remote Sensing Letters, 2022
Full waveform inversion (FWI) is, as an optimization problem, strongly nonconvex and is influenced intensely by the cycle skipping issue, especially for multiparameter inversions like the elastic case.
Jingrui Luo, R. Wu, Yong Hu, Guoxin Chen
semanticscholar   +1 more source

Calculus for linearly correlated fuzzy function using Fréchet derivative and Riemann integral

Information Sciences, 2020
In this manuscript we study integration and derivative theories for interactive fuzzy processes. These theories are based on the Frechet derivative and the Riemann integral.
F. S. Pedro, E. Esmi, L. C. Barros
semanticscholar   +1 more source

A global sensitivity index based on Fréchet derivative and its efficient numerical analysis

, 2020
Sensitivity analysis plays an important role in reliability evaluation, structural optimization and structural design, etc. The local sensitivity, i.e., the partial derivative of the quantity of interest in terms of parameters or basic variables, is ...
Jianbing Chen, Z. Wan, M. Beer
semanticscholar   +1 more source

Source-independent seismic envelope inversion based on the direct envelope Fréchet derivative

Geophysics, 2018
Seismic envelope inversion (EI) uses low-frequency envelope data to recover long-wavelength components of the subsurface media. Conventional EI uses the same waveform Fréchet derivative as conventional full-waveform inversion. Due to linearization of the
Pan Zhang, R. Wu, Liguo Han
semanticscholar   +1 more source

3-D Adaptive Regularization Nonlinear Inversion of LWD Ultradeep Resistivity in Anisotropic Formation Based on Finite Volume Method of Secondary Field Coupled Potentials and Explicit Fréchet Derivative

IEEE Transactions on Geoscience and Remote Sensing
The article advances a 3-D adaptive regularization nonlinear inversion of the logging while drilling (LWD) ultradeep multicomponent resistivity (LWD-UDMCR) by the Gauss-Newton (GN) method.
Hongnian Wang, Yazhou Wang, Lei Yu, Bo Chen, Wenxiu Zhang, Shouwen Yang, Haosen Wang   +6 more
semanticscholar   +1 more source

A two-stage uncertainty quantification framework for reliability and sensitivity analysis of structures using the probability density evolution method integrated with the Fréchet-derivative-based method

Engineering structures, 2023
Z. Wan, Jianbing Chen, Wei-Feng Tao
semanticscholar   +1 more source

Modified distorted Born iterative method with an approximate Fréchet derivative for optical diffusion tomography

, 1999
In frequency-domain optical diffusion imaging, the magnitude and the phase of modulated light propagated through a highly scattering medium are used to reconstruct an image of the scattering and absorption coefficients in the medium.
J. C. Ye, K. Webb, R. Millane, T. Downar
semanticscholar   +1 more source