Results 101 to 110 of about 375,658 (336)

Restricted Tweedie stochastic block models

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

Generalized Lagrange Multipliers in Elastoplastic Torsion

open access: yesJournal of Differential Equations, 1994
It has been shown that for a solution \(u \in K = \{u \in H^ 1_ 0(\Omega) : | Dv(x)| \leq 1\) a.e. in \(\Omega\}\) of the problem \(\min_{v \in K} \bigl\{ \int_ \Omega f(x,Dv) dx - \int_ \Omega gv dx\biggr \}\), where \(f(x,\cdot)\) is strictly convex for a.e. \(x \in \Omega\), \(\alpha | \xi|^ 2 \leq f(x,\xi) \leq A(1 + | \xi|^ 2)\) for a.e.
V. C. PIAT, PERCIVALE, DANILO
openaire   +1 more source

A partial envelope approach for modelling multivariate spatial‐temporal data

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja   +3 more
wiley   +1 more source

The Benjamin–Ono Equation in the Zero‐Dispersion Limit for Rational Initial Data: Generation of Dispersive Shock Waves

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone   +3 more
wiley   +1 more source

The Avriel-Ben-Tal algebraic operations approach for a short version proof of the Karush-Kuhn-Tucker optimality conditions

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper, by using (h, ϕ)-generalized directional derivative and (h, ϕ)-generalized gradient, the authors directly derives the Karush- Kuhn-Tucker conditions by applying a corollary of Farkas lemma under the Mangasarian-Fromovitz constraint ...
Cornaciu Veronica, Ioana Ileana
doaj   +1 more source

Penjadwalan Pembangkit Termal dengan Improved Lagrange Relaxation pada Sistem Jamali - 500 kV

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2018
Unit Commitment (UC) is a problem to schedule generating units in a power system economically meeting the requirements of load demand and spinning reserve. Up to now several methods have been applied to solve this problem.
inas sunaryanti ningsih   +2 more
doaj   +1 more source

Slopes of shadow prices and Lagrange multipliers

open access: yesOptimization Letters, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stein, O., Flam, S. D., Jongen, H. Th.
openaire   +2 more sources

Front Propagation Through a Perforated Wall

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki   +2 more
wiley   +1 more source

LAGRANGE-HAMILTON MODEL FOR CONTROL AFFINE SYSTEMS WITH POSITIVE HOMOGENEOUS COST [PDF]

open access: yes
In this paper we give a new technique to obtain the Hamiltonian function in order to solve the driftless control affine systems (distributional systems) with positive homogeneous costs.
Liviu Popescu
core  

Generalized Lagrange Multipliers in Integer Programming [PDF]

open access: yesOperations Research, 1971
This paper combines the theory of generalized Lagrange multipliers with a reformulation of the integer-programming problem due to group theory. The use of multipliers enhances the algorithmic efficiency of group theory in a variety of ways. One particular application is the approximation of generalized Lagrange multipliers by generalized linear ...
openaire   +1 more source

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