Results 31 to 40 of about 50,039 (279)

Community Detection of Multi-Layer Attributed Networks via Penalized Alternating Factorization

open access: yesMathematics, 2020
Communities are often associated with important structural characteristics of a complex network system, therefore detecting communities is considered to be a fundamental problem in network analysis.
Jun Liu, Jiangzhou Wang, Binghui Liu
doaj   +1 more source

Generalized logarithmic penalty function method for solving smooth nonlinear programming involving invex functions

open access: yesArab Journal of Basic and Applied Sciences, 2019
In this paper, we have reviewed some penalty function methods for solving constrained optimization problems in the literature and proposed a continuously differentiable logarithmic penalty function which consists of the proposed logarithmic penalty ...
Mansur Hassan, Adam Baharum
doaj   +1 more source

Evolutionary Based ICA With Reference for EEG $\mu$ Rhythm Extraction

open access: yesIEEE Access, 2018
Independent component analysis with reference (ICA-R), a paradigm of constrained ICA (cICA), incorporates textita priori information about the desired sources as reference signals into the contrast function of ICA.
Swathi Sri Kavuri   +2 more
doaj   +1 more source

Sparse Graph Learning Under Laplacian-Related Constraints

open access: yesIEEE Access, 2021
We consider the problem of learning a sparse undirected graph underlying a given set of multivariate data. We focus on graph Laplacian-related constraints on the sparse precision matrix that encodes conditional dependence between the random variables ...
Jitendra K. Tugnait
doaj   +1 more source

Fuzzy Real-Time Optimization of the Tennessee Eastman Challenge Process [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2011
A Real-Time Optimization (RTO) strategy incorporating the fuzzy sets theory is developed, where the problem constraints obtained from process considerations are treated in fuzzy environment. Furthermore, the objective function is penalized by a fuzzified
Masoud Golshan   +3 more
doaj  

An iterative optimization scheme to accommodate inequality constraints in air quality geostatistical estimation of multivariate PM

open access: yesHeliyon, 2023
The kriging-based estimation of the different types of atmospheric particulate matter (PM) pollutions defined in the air quality regulation raises some operational problems because the (co)kriging equations are obtained by minimizing a linear combination
Maxime Beauchamp, Bertrand Bessagnet
doaj   +1 more source

Structured penalized regression for drug sensitivity prediction

open access: yes, 2020
Large-scale {\it in vitro} drug sensitivity screens are an important tool in personalized oncology to predict the effectiveness of potential cancer drugs.
Zhao, Zhi, Zucknick, Manuela
core   +1 more source

Alternating direction method of multipliers for penalized zero-variance discriminant analysis [PDF]

open access: yes, 2015
We consider the task of classification in the high dimensional setting where the number of features of the given data is significantly greater than the number of observations.
Ames, Brendan   +2 more
core   +3 more sources

Fast stable direct fitting and smoothness selection for Generalized Additive Models [PDF]

open access: yes, 2007
Existing computationally efficient methods for penalized likelihood GAM fitting employ iterative smoothness selection on working linear models (or working mixed models).
Akaike H.   +25 more
core   +2 more sources

Sharp interface limit for a phase field model in structural optimization

open access: yes, 2016
We formulate a general shape and topology optimization problem in structural optimization by using a phase field approach. This problem is considered in view of well-posedness and we derive optimality conditions.
Christoph Rupprecht   +7 more
core   +1 more source

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