Results 31 to 40 of about 21,778 (301)

On the Convergence of a Smooth Penalty Algorithm without Computing Global Solutions

open access: yesJournal of Applied Mathematics, 2012
We consider a smooth penalty algorithm to solve nonconvex optimization problem based on a family of smooth functions that approximate the usual exact penalty function.
Bingzhuang Liu   +2 more
doaj   +1 more source

A nonmonotone line search method for solving constrained multiobjective optimization problems [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
In this paper, we propose a globally convergent Sequential Quadratic Programming (SQP) method for solving constrained multiobjective optimization problems (MOPs) with inequality constraints.
Mehri Rashidi, Esmaile Khorram
doaj   +1 more source

Localised edge‐region‐based active contour for medical image segmentation

open access: yesIET Image Processing, 2021
Segmenting the region of interest (ROI) from medical images is a fundamental but challenging task due to the illumination change and imaging devices. Although many models based on the local region‐based active contour model (LR‐ACM) are proposed to deal ...
Hua‐Xiang Liu   +3 more
doaj   +1 more source

Optimal Diffusion Learning Over Networks—Part I: Single-Task Algorithms

open access: yesIEEE Open Journal of Signal Processing, 2022
We revisit the theory of distributed networks of cooperative agents under a broader perspective of diffusion adaptation, by exploiting proximity concepts.
Ricardo Merched
doaj   +1 more source

New Conditions for Exactness of a Simple Penalty Function [PDF]

open access: yesSIAM Journal on Control, 1973
We consider penalty function methods for finding the maximum of a function f over the set \[ S = \{ x \in R^n :g_i (x) \leqq 0{\text{ for }}i = 1, \cdots ,m{\text{ and }}h_j (x) = 0{\text{ for }}j = 1, \cdots ,p\} . \] New conditions, extending earlier work done by Pietrzykowski, are presented under which the penalty function \[ P(x,\mu ) = \mu f(x) - \
openaire   +2 more sources

Exact l$_1$ penalty function for nonsmooth multiobjective interval-valued problems [PDF]

open access: yes
summary:Our objective in this article is to explore the idea of an unconstrained problem using the exact l$_1$ penalty function for the nonsmooth multiobjective interval-valued problem (MIVP) having inequality and equality constraints.
Prasad, Ashish Kumar, Khatri, Julie
core   +1 more source

Parsimonious Kernel Fisher Discrimination [PDF]

open access: yes, 2007
By applying recent results in optimization transfer, a new algorithm for kernel Fisher Discriminant Analysis is provided that makes use of a non-smooth penalty on the coefficients to provide a parsimonious solution.
Harrison, Robert F.   +5 more
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

lra: A long read aligner for sequences and contigs.

open access: yesPLoS Computational Biology, 2021
It is computationally challenging to detect variation by aligning single-molecule sequencing (SMS) reads, or contigs from SMS assemblies. One approach to efficiently align SMS reads is sparse dynamic programming (SDP), where optimal chains of exact ...
Jingwen Ren, Mark J P Chaisson
doaj   +1 more source

Finite element models based on the approximation of discontinuous stress fields

open access: yesMagazine of Civil Engineering, 2022
The paper develops the finite element method (FEM) in the form of the force method and in the mixed form for the calculation of structures. At present, the displacement-based finite element method is mainly used for engineering calculations. Stress-based
Lukashevich Anatoliy
doaj   +1 more source

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