Results 71 to 80 of about 691,952 (302)

Delayed Star Subgradient Methods for Constrained Nondifferentiable Quasi-Convex Optimization

open access: yesAlgorithms
In this work, we consider the problem of minimizing a quasi-convex function over a nonempty closed convex constrained set. In order to approximate a solution of the considered problem, we propose delayed star subgradient methods.
Ontima Pankoon, Nimit Nimana
doaj   +1 more source

On a subclass of quasi-convex mappings

open access: yesJournal of Mathematical Analysis and Applications, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xu, Qing-Hua, Liu, Tai-Shun
openaire   +1 more source

Uniform approximation by quasi-convex and convex functions

open access: yes, 1988
Given a bounded function f defined on a convex subset of Rn, the two problems considered are to find a quasi-convex (convex) function which is a best approximation to f under the uniform norm.
Ubhaya, Vasant A
core   +1 more source

AI‐Guided Co‐Optimization of Advanced Field‐Effect Transistors: Bridging Material, Device, and Fabrication Design

open access: yesAdvanced Intelligent Discovery, EarlyView.
This article outlines how artificial intelligence could reshape the design of next‐generation transistors as traditional scaling reaches its limits. It discusses emerging roles of machine learning across materials selection, device modeling, and fabrication processes, and highlights hierarchical reinforcement learning as a promising framework for ...
Shoubhanik Nath   +4 more
wiley   +1 more source

Geodesics on lorentzian manifolds with quasi-convex boundary

open access: yesManuscripta Mathematica, 1993
The paper is devoted to existence and multiplicity results on nonspatial geodesics joining two given events in warped product Lorentzian manifolds of the form \(M\times(a,b)\). The hypothesis contains a boundary convexity condition and a large class of some rather technical assumptions.
MASIELLO, Antonio, GIANNONI F.
openaire   +4 more sources

On Hadamard's Inequalities for the Convex Mappings Defined in Topological Groups and Connected Result

open access: yes, 2009
In this paper, we study the Hadamard’s inequality for midconvex and quasi-midconvex functions in topological groups.
Morassaei, Ali
core  

Optimizing 3D Bin Packing of Heterogeneous Objects Using Continuous Transformations in SE(3)

open access: yesAdvanced Intelligent Systems, EarlyView.
This article presents a method for solving the three‐dimensional bin packing problem for heterogeneous objects using continuous rigid‐body transformations in SE(3). A heuristic optimization framework combines signed‐distance functions, neural network approximations, point‐cloud bin modeling, and physics simulation to ensure feasibility and stability ...
Michele Angelini, Marco Carricato
wiley   +1 more source

Locally Quasi-Convex Compatible Topologies on a Topological Group

open access: yesAxioms, 2015
For a locally quasi-convex topological abelian group (G,τ), we study the poset \(\mathscr{C}(G,τ)\) of all locally quasi-convex topologies on (G) that are compatible with (τ) (i.e., have the same dual as (G,τ) ordered by inclusion.
Lydia Außenhofer   +2 more
doaj   +1 more source

On Mixed-Integer Random Convex Programs [PDF]

open access: yes, 2012
We consider a class of mixed-integer optimization problems subject to N randomly drawn convex constraints. We provide explicit bounds on the tails of the probability that the optimal solution found under these N constraints will become infeasible for the
D. Lyons   +8 more
core   +1 more source

Profiling Co‐Occurrent Morphological Phenotypes and Their Degree of Expression Severity in Vacuolated Cells by Holo‐Tomographic Flow Cytometry and Fractal Analysis

open access: yesAdvanced Intelligent Systems, EarlyView.
HTFC gets 3D refractive index tomograms of flowing cells. Label‐free monocytes are engineered to express patterns of cytoplasmic vacuoles. From the tomogram, an efficient dimensionality reduction is operated. Interpretable features are extracted to classify the expression severity of phenotypes coexisting in each cell, visually represented by a seven ...
Marika Valentino   +9 more
wiley   +1 more source

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