Discretization-based algorithms for generalized semi-infinite and bilevel programs with coupling equality constraints
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Global Optimization"
DOI: 10.1007/s10898-019-00764-3
Abstract: Discretization-based algorithms are proposed for the global solution of mixed-integer nonlinear generalized semi-infinite (GSIP) and bilevel (BLP) programs with lower-level equality constraints coupling the lower and upper level. The algorithms are extensions, respectively, of the… read more here.
Keywords: equality; level; discretization based; equality constraints ... See more keywords
Constrained High-Index Saddle Dynamics for the Solution Landscape with Equality Constraints
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Scientific Computing"
DOI: 10.1007/s10915-022-01838-3
Abstract: We propose a constrained high-index saddle dynamics (CHiSD) method to search for index- k saddle points of an energy functional subject to equality constraints. With Riemannian manifold tools, the CHiSD is derived in a minimax… read more here.
Keywords: constrained high; equality constraints; index saddle; high index ... See more keywords
An Iterative Closed-Loop Identification Method for Continuous-Time FOPDT Model Using Equality Constraints
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Control, Automation and Electrical Systems"
DOI: 10.1007/s40313-021-00802-0
Abstract: In this paper, an iterative method to identify first-order plus dead-time (FOPDT) models is proposed. The proposed method uses two frequency points as equality constraints to estimate the model parameters using the least-squares identification algorithm.… read more here.
Keywords: time; equality constraints; iterative closed; model ... See more keywords
On the restrictiveness of equality constraints in multivariate curve resolution
Sign Up to like & getrecommendations! Published in 2020 at "Chemometrics and Intelligent Laboratory Systems"
DOI: 10.1016/j.chemolab.2020.103942
Abstract: Abstract Multivariate curve resolution methods suffer from the non-uniqueness of the solutions of the nonnegative matrix factorization problem. The solution ambiguity can be considerably reduced by equality constraints in the form of known spectra or… read more here.
Keywords: multivariate curve; restrictiveness equality; equality constraints; curve resolution ... See more keywords
Kalman Filtering with Linear State Equality Constraints: A Method Based on Separating Variables
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DOI: 10.1109/access.2022.3163399
Abstract: This article considers the minimum variance state estimation of linear dynamic systems with linear state equality constraints. The proposed method uses singular value decomposition to divide the constrained system states into deterministic and stochastic parts.… read more here.
Keywords: state; state equality; stochastic part; equality constraints ... See more keywords
Robust Kalman Smoothers With Linear Equality Constraints
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2021.3122456
Abstract: It is well known that the Kalman filter (KF) performance is clearly degraded in real-life applications where the system model is misspecified to a certain extent, that is, when the assumed knowledge does not perfectly… read more here.
Keywords: robust kalman; linearly constrained; equality constraints; linear equality ... See more keywords
An Online Newton’s Method for Time-Varying Linear Equality Constraints
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2023.3247359
Abstract: We consider online optimization problems with time-varying linear equality constraints. In this framework, an agent makes sequential decisions using only prior information. At every round, the agent suffers an environment-determined loss and must satisfy time-varying… read more here.
Keywords: time; equality constraints; linear equality; time varying ... See more keywords
The Impact of Imposing Equality Constraints on Residual Variances Across Classes in Regression Mixture Models
Sign Up to like & getrecommendations! Published in 2021 at "Frontiers in Psychology"
DOI: 10.3389/fpsyg.2021.736132
Abstract: The purpose of this study is to explore the impact of constraining class-specific residual variances to be equal by examining and comparing the parameter estimation of a free model and a constrained model under various… read more here.
Keywords: equality constraints; class; residual variances; free model ... See more keywords