Results 31 to 40 of about 212,366 (287)
Efficiency and robustness in Monte Carlo sampling for 3-D geophysical inversions with Obsidian v0.1.2: setting up for success [PDF]
Geoscientific Model Development, 2019 The rigorous quantification of uncertainty in geophysical inversions is a challenging problem. Inversions are often ill-posed and the likelihood surface may be multi-modal; properties of any single mode become inadequate uncertainty measures, and ...
R. Scalzo +9 more
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Recent Advances in the Geodesy Data Processing [PDF]
Journal of Geodesy and Geoinformation Science, 2023 Geodetic functional models, stochastic models, and model parameter estimation theory are fundamental for geodetic data processing. In the past five years, through the unremitting efforts of Chinese scholars in the field of geodetic data processing ...
Jianjun ZHU, Leyang WANG, Jun HU, Bofeng LI, Haiqiang FU, Yibin YAO
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Multi-parameter inversion with the aid of particle velocity field reconstruction
The Journal of the Acoustical Society of America, 2020 Multi-parameter inversion for medical ultrasound leads to an improved tissue classification. In general, simultaneous reconstruction of volume density of mass and compressibility would require knowledge of the particle velocity field along with the pressure field. However, in practice the particle velocity field is not measured.
Taskin, U. (author) +1 more
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Singularities in K-space and Multi-brane Solutions in Cubic String Field Theory [PDF]
, 2013 In a previous paper [arXiv:1111.2389], we studied the multi-brane solutions in cubic string field theory by focusing on the topological nature of the "winding number" N which counts the number of branes.
Hata, Hiroyuki, Kojita, Toshiko
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Prediction of multi-parameters in the inverse heat conduction problems
Journal of Physics: Conference Series, 2020 Abstract This paper studies the prediction of the spatial-dependent-heat transfer coefficient γ(x) and- heat flux q(x), using the modified conjugate gradient method (MCGM). The mathematical formulation of the problem well defined and the existence of the minimizer is investigated.
Talaat Abdelhamid +2 more
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Seismic Multi-Parameter Full-Waveform Inversion Based on Rock Physical Constraints
Applied SciencesSeismic multi-parameter full-waveform inversion (FWI) integrating velocity and density parameters can fully use the kinematic and dynamic information of observed data to reconstruct underground models. However, seismic multi-parameter FWI is a highly ill-
Cen Cao, Deshan Feng, Jia Tang, Xun Wang
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Analytic periods via twisted symmetric squares
Journal of High Energy Physics, 2022 We study the symmetric square of Picard-Fuchs operators of genus one curves and the thereby induced generalized Clausen identities. This allows the computation of analytic expressions for the periods of all one-parameter K3 manifolds in terms of elliptic
Rafael Álvarez-García +1 more
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, 2018 We study the superconducting state of multi-orbital spin-orbit coupled systems in the presence of an orbitally driven inversion asymmetry assuming that the inter-orbital attraction is the dominant pairing channel.
Cuoco, Mario +5 more
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Noisy Gradient Descent Bit-Flip Decoding for LDPC Codes [PDF]
, 2014 A modified Gradient Descent Bit Flipping (GDBF) algorithm is proposed for decoding Low Density Parity Check (LDPC) codes on the binary-input additive white Gaussian noise channel.
Boutillon, Emmanuel +2 more
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Frontiers in Earth Science, 2022 In geophysical inversions, lower and upper model parameter bounds are a means of solution stabilization. Further, constraints that intend to let only geologically plausible inverse solutions pass are amenable to lower and upper bounds.
Michael Commer +8 more
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