Results 61 to 70 of about 59,611 (293)
Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2023 The problem of minimizing the cost of maritime cargo delivery is considered. The cost is equivalent to the sum of the tour lengths of feeders used for the delivery. The problem is formulated as a multiple traveling salesman problem. In order to find its
Vadim Romanuke +2 more
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Modelling and Smoothing Parameter Estimation With Multiple Quadratic Penalties [PDF]
Journal of the Royal Statistical Society Series B: Statistical Methodology, 2000 Summary Penalized likelihood methods provide a range of practical modelling tools, including spline smoothing, generalized additive models and variants of ridge regression. Selecting the correct weights for penalties is a critical part of using these methods and in the single-penalty case the analyst has several well-founded techniques ...
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
Error Analysis of a PFEM Based on the Euler Semi-Implicit Scheme for the Unsteady MHD Equations
Entropy, 2022 In this article, we mainly consider a first order penalty finite element method (PFEM) for the 2D/3D unsteady incompressible magnetohydrodynamic (MHD) equations.
Kaiwen Shi, Haiyan Su, Xinlong Feng
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On the adaptive selection of the parameter in stabilized finite element approximations [PDF]
, 2013 A systematic approach is developed for the selection of the stabilization parameter for stabilized finite element approximation of the Stokes problem, whereby the parameter is chosen to minimize a computable upper bound for the error in the approximation.
Rankin, Richard Andrew Robert +3 more
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Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source
ANALYSIS OF PENALTY PARAMETERS IN BINARY CONSTRAINED EXTREMUM PROBLEMS
Taiwanese Journal of Mathematics, 2014 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Antoni, Carla, Pedrazzoli, Mario
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Optimal penalty parameter for C \u3c sup\u3e 0 \u3c/sup\u3e IPDG [PDF]
, 2014 We derive the lower bound of the penalty parameter in the C0 IPDG for the bi-harmonic equation. Based on the bound, we propose a pre-processing algorithm. Numerical examples are shown to support the theory.
Ji, Xia, Sun, Jiguang, Yang, Yang
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Advanced Engineering Materials, EarlyView.We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang +2 more
wiley +1 more source
Lower order calmness and exact penalty function [PDF]
, 2006 In this article, we investigate the exact penalty properties of a lower order penalty function under a lower order calmness conditions. It is shown that the local exact penalization of the lower order penalty function with any positive penalty parameter ...
Wu, Zhiyou, Bai, Fusheng, Zhu, D.
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