Results 51 to 60 of about 17,567 (165)
Genetic Algorithm Optimized Structured Dictionary for Discriminative Block Sparse Representation
IEEE Access, 2020 This paper presents a few innovations towards learning a discriminative block-structured dictionary. The learning process of such a dictionary is broadly divided into two steps: block formation and dictionary update.
Nagendra Kumar, Rohit Sinha
doaj +1 more source
Numerical Computation of Lower Bounds of Structured Singular Values
European Journal of Pure and Applied Mathematics, 2018 In this article we consider the numerical approximation of lower bounds of Structured Singular Values, SSV. The SSV is a wellknown mathematical quantity which is widely used to analyse and syntesize the robust stability and instability analysis of linear feedback systems in control theory.
Anwar, M. Fazeel, Rehman, Mutti-Ur
openaire +2 more sources
Singular Value and Structured Singular Value Bounds in Parameter Space
, 2002 This contribution discusses the mapping of singular value (sigma-) bounds and structured singuar value (mu-) bounds into parameter space. The sigma- and mu- mapping problem is defined to enclose robut design and analysis in parameter space. Real, complex and mixed uncertainty structures are considered.
Bajcinca, N., Muhler, M.
openaire +1 more source
Using a High-Dimensional Graph of Semantic Space to Model Relationships among Words
Frontiers in Psychology, 2014 The GOLD model (Graph Of Language Distribution) is a network model constructed based on co-occurrence in a large corpus of natural language that may be used to explore what information may be present in a graph-structured model of language, and what ...
Alice F Jackson, Donald J Bolger
doaj +1 more source
AxiomsThe approach to solving linear systems with structured matrices by means of the bidiagonal factorization of the inverse of the coefficient matrix is first considered in this review article, the starting point being the classical Björck–Pereyra algorithms
José-Javier Martínez
doaj +1 more source
Data-Driven Estimation of Structured Singular Values
IEEE Control Systems LettersEstimating the size of the modeling error is crucial for robust control. Over the years, numerous metrics have been developed to quantify the model error in a control relevant manner. One of the most important such metrics is the structured singular value, as it leads to necessary and sufficient conditions for ensuring stability and robustness in ...
Margarita A. Guerrero +2 more
openaire +2 more sources
Journal of Innovative Applied Mathematics and Computational SciencesMany a time, in a variance exchange process looking for D-optimal designs, the initial designs of all quadratic components of three-variable response polynomials produce non-invertible information matrices.
Okim Ikpan, Felix Nwobi
doaj +1 more source
International Journal of Applied Mathematics and Computer ScienceThe paper is devoted to the theoretical problem of designing a robust asymptotic tracking control system for a rotational motion of a 2DOF underactuated linear mechanical system with parametric uncertainties.
Emirsajłow Zbigniew, Barciński Tomasz
doaj +1 more source
Robust Fractional-Order PI/PD Controllers for a Cascade Control Structure of Servo Systems
Fractal and FractionalIn this paper, a cascade control structure is suggested to control servo systems that normally include a servo motor in coupling with two kinds of mechanism elements, a translational or rotational movement.
Vo Lam Chuong +3 more
doaj +1 more source
IEEE AccessElectroencephalography (EEG) signals are frequently compromised by missing data due to electrode contact issues or subject movement. Tensor decomposition has emerged as a powerful technique for analyzing multidimensional EEG data.
Yue Zhang +3 more
doaj +1 more source