Výsledky vyhledávání - methods of tangential convex functions

The DTC (difference of tangentially convex functions) programming: optimality conditions Autor Mashkoorzadeh, F., Movahedian, N., Nobakhtian, S.

“…We focus on optimality conditions for an important class of nonconvex and nonsmooth optimization problems, where the objective and constraint functions are presented as a difference of two tangentially convex functions…”
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A Novel Contact Algorithm Based on a Distance Potential Function for the 3D Discrete-Element Method Autor Zhao, Lanhao, Liu, Xunnan, Mao, Jia, Xu, Dong, Munjiza, Antonio, Avital, Eldad

“… To address this problem, a new 3D discrete-element method based on a distance potential is proposed for a system consisting of a large number of arbitrary convex polyhedral elements…”
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Tangential extremal principles for finite and infinite systems of sets II: applications to semi-infinite and multiobjective optimization Autor Mordukhovich, Boris S., Phan, Hung M.

“…This paper contains selected applications of the new tangential extremal principles and related results developed in Mordukhovich and Phan (Math Program 2011…”
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A Bregman–Kaczmarz method for nonlinear systems of equations Autor Gower, Robert, Lorenz, Dirk A., Winkler, Maximilian

“… Furthermore if the component functions are nonnegative, we are in the setting of optimization under the interpolation assumption and the method reduces to SGD with the recently proposed stochastic Polyak step size…”
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A novel discrete element method based on the distance potential for arbitrary 2D convex elements Autor Zhao, Lanhao, Liu, Xunnan, Mao, Jia, Xu, Dong, Munjiza, Antonio, Avital, Eldad

“…Summary A new 2‐dimensional discrete element method, which is able to simulate a system involving a large number of arbitrary convex elements, is proposed…”
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Tangential contact modeling to seal considering elastic-plastic for lubrication transition mechanism Autor Yin, Tuyuan, Sun, Dongning, Miao, Kefei, Liu, Huixiang, Tong, Xiaomeng, Xie, Zhongliang

“… Thus, it is necessary to explore seal leakage failure to focus on micro convex bodies of asperities model under contact pressure and cycle tangential friction stress in mixed lubrication…”
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Finite convergence of an active signature method to local minima of piecewise linear functions Autor Griewank, Andreas, Walther, Andrea

“…We previously derived first-order (KKT) and second-order (SOSC) optimality conditions for functions defined by evaluation programs involving smooth elementals and absolute values…”
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Blind multi-frame deconvolution by tangential iterative projections (TIP) Autor Wilding, Dean, Soloviev, Oleg, Pozzi, Paolo, Vdovin, Gleb, Verhaegen, Michel

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A sequential adaptive regularisation using cubics algorithm for solving nonlinear equality constrained optimization Autor Pei, Yonggang, Song, Shaofang, Zhu, Detong

“… adaptive regularisation using cubics algorithm inspired by sequential quadratic programming (SQP) methods…”
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On primal regularity estimates for single-valued mappings Autor Cibulka, Radek, Fabian, Marián, Ioffe, Alexander D.

“… . We focus on the case when F is defined on a proper (closed convex) subset of X only rather than on the whole of X…”
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Numerical comparison of merit function with filter criterion in inexact restoration algorithms using hard-spheres problems Autor Karas, Elizabeth W., Pilotta, Elvio A., Ribeiro, Ademir A.

“… Each iteration is composed of two phases. The first one reduces a measure of infeasibility, while in the second one the objective function value is reduced in a tangential approximation of the feasible set…”
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A Bregman-Kaczmarz method for nonlinear systems of equations Autor Gower, Robert, Lorenz, Dirk A, Winkler, Maximilian

“… Furthermore, if the component functions are nonnegative, we are in the setting of optimization under the interpolation assumption and the method reduces to SGD with the recently proposed stochastic Polyak step size…”
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H/sub /spl infin// identification of multivariable systems by tangential interpolation methods Autor Jie Chen, Farrell, J.A., Nett, C.N., Kemin Zhou

“… This algorithm operates on available input and output data in the time domain and is constructed by solving an extended matrix tangential Caratheodory-Fejer problem…”
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Ergodic, primal convergence in dual subgradient schemes for convex programming Autor Larsson, Torbjörn, Patriksson, Michael, Strömberg, Ann-Brith

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Homogenization of Thin Structures by Two-Scale Method with Respect to Measures Autor Bouchitte, Guy, Fragala, Ilaria

“…$. We introduce a new notion of two-scale convergence for a sequence of functions $v_\e \in L ^p_{\me} (\O; \re ^d)$, where $\O$ is an open bounded subset…”
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Convergence Analysis of Nonlinear Kaczmarz Method for Systems of Nonlinear Equations with Component-wise Convex Mapping Autor Gao, Yu, Chen, Chong

“…), this paper studies the convergence theory of the nonlinear Kaczmarz method (NKM) for solving the system of nonlinear equations with component-wise convex mapping, namely, the function corresponding to each equation being convex…”
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Spherical harmonics-based pseudo-spectral method for quantitative analysis of symmetry breaking in wrinkling of shells with soft cores Autor Zavodnik, Jan, Brojan, Miha

“…A complete understanding of the wrinkling of compressed films on curved substrates remains illusive due to the limitations of both analytical and current numerical methods…”
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Binary whale optimization algorithm: a new metaheuristic approach for profit-based unit commitment problems in competitive electricity markets Autor Reddy K., Srikanth, Panwar, Lokesh, Panigrahi, B. K., Kumar, Rajesh

“… This article introduces three variants of BWOA using tangential hyperbolic, inverse tangent (arctan) and sigmoidal transfer functions…”
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Experimental and numerical optimization modelling to reduce radiofrequency-induced risks of magnetic resonance examinations on leaded implants Autor Córcoles, Juan, Yao, Aiping, Kuster, Niels

“…Convex formulations can be used to reduce the local specific absorption rate enhancement by active medical implants of radiofrequency fields in magnetic resonance examinations while minimizing the loss of image quality…”
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Multi-directional behavior of granular materials and its relation to incremental elasto-plasticity Autor Kuhn, Matthew R., Daouadji, Ali

“… The model used non-convex non-spherical particles and an exact implementation of the Hertz-like Cattaneo…”
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