Impact of a time-dependent background error covariance matrix on air quality analysis by E. Jaumouillé, S. Massart, A. Piacentini, D. Cariolle, V.-H. Peuch

“…We first show that the resulting covariance matrix is strongly time (hourly and seasonally) and space dependent. …”
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A covariance matrix-based spectrum sensing technology exploiting stochastic resonance and filters by Jin Lu, Ming Huang, Jingjing Yang

“…This paper proposes a novel covariance matrix-based spectrum sensing method by using stochastic resonance (SR) and filters. …”
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An improved rate for nonnegative definite consistent covariance matrix estimation with heterogeneous dependent data by Quah, Danny

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Estimating change point in multivariate processes via simultaneous mean vector and covariance matrix by Firouzi, Alireza

“…In this situation, the mean vector and covariance matrix must be simultaneously monitored and controlled to determine whether a multivariate process is in control. …”
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Covariance matrix adaptation evolution strategy for improving machine learning approaches in streamflow prediction by Ikram, Rana Muhammad Adnan, Goliatt, Leonardo, Kisi, Ozgur, Trajkovic, Slavisa, Shahid, Shamsuddin

“…Machine learning models were successfully utilized to estimate streamflow in recent years In this study, a new approach, covariance matrix adaptation evolution strategy (CMAES), was utilized to improve the accuracy of seven machine learning models, namely extreme learning machine (ELM), elastic net (EN), Gaussian processes regression (GPR), support vector regression (SVR), least square SVR (LSSVR), extreme gradient boosting (XGB), and radial basis function neural network (RBFNN), in predicting streamflow. …”
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Design Of Multivariable Fractional Order Pid Controller Using Covariance Matrix Adaptation Evolution Strategy by Sivananaithaperumal Sudalaiandi, Baskar Subramanian

“…This paper presents an automatic tuning of multivariable Fractional-Order Proportional, Integral and Derivative controller (FO-PID) parameters using Covariance Matrix Adaptation Evolution Strategy (CMAES) algorithm. …”
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Fast Reconstruction and Iterative Updating of Spatial Covariance Matrix for DOA Estimation in Hybrid Massive MIMO by Zihao Fu, Yinsheng Liu, Yiwei Yan

“…With hybrid structures, the received signals at the antennas are not fed directly to the receiver, and thus the spatial covariance matrix (SCM), which is essential to MUSIC algorithm, cannot be obtained using traditional sample average algorithm. …”
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Improved Large Dynamic Covariance Matrix Estimation With Graphical Lasso and Its Application in Portfolio Selection by Xin Yuan, Weiqin Yu, Zhixiang Yin, Guoqiang Wang

Subjects: “…Covariance matrix estimation…”
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Modeling Heterogeneity of the Level-1 Error Covariance Matrix in Multilevel Models for Single-Case Data by Eunkyeng Baek, John J. M. Ferron

“…Previous research applying multilevel models to single-case data has made a critical assumption that the level-1 error covariance matrix is constant across all participants. …”
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Approximations of the GOCE error variance-covariance matrix for least-squares estimation of height datum offsets by Gerlach Ch., Fecher Th.

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Complex Parameter Rao and Wald Tests for Assessing the Bandedness of a Complex-Valued Covariance Matrix by Zhenghan Zhu

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Oblique Projection-Based Covariance Matrix Reconstruction and Steering Vector Estimation for Robust Adaptive Beamforming by Yanliang Duan, Yanping Gong, Xiaohui Yang, Weiping Cao

Subjects: “…interference-plus-noise covariance matrix reconstruction…”
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The Kullback–Leibler Divergence and the Convergence Rate of Fast Covariance Matrix Estimators in Galaxy Clustering Analysis by Zhigang Li, Zhejie Ding, Yu Yu, Pengjie Zhang

“…As a case study, we analyze the delete- d jackknife estimator for the covariance matrix of the galaxy correlation function. We introduce the information factor or the normalized KL divergence with the help of a set of baseline covariance matrices to diagnose the information contained in the jackknife covariance matrix. …”
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Knowledge Aided Covariance Matrix Estimation via Gaussian Kernel Function for Airborne SR-STAP by Mingxin Liu, Lin Zou, Xuelian Yu, Yun Zhou, Xuegang Wang, Bin Tang

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Covariance matrix adaptation evolution strategy for robust load frequency control of hydro power systems by Nitish Katal, Sanjay Kumar, Sanjay Kumar

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Matching Algorithm of 3D Point Clouds Based on Multiscale Features and Covariance Matrix Descriptors by Bin Lu, Yang Wang

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Robust space-time adaptive processing based on covariance matrix reconstruction and steering vector correction by Xueyao Hu, Xinyu Zhang, Yang Li, Hongyu Wang, Yanhua Wang

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DOA estimation of multiple non-coherent and coherent signals using element transposition of covariance matrix by Van-Sang Doan, Dong-Seong Kim

Subjects: “…Transposition of covariance matrix…”
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Determinant of Covariance Matrix Model Coupled with AdaBoost Classification Algorithm for EEG Seizure Detection by Hanan Al-Hadeethi, Shahab Abdulla, Mohammed Diykh, Jonathan H. Green

“…In this paper, a determinant of covariance matrix (Cov–Det) model is suggested for reducing EEG dimensionality. …”
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Robust Beamforming Based on Covariance Matrix Reconstruction in FDA-MIMO Radar to Suppress Deceptive Jamming by Fuhai Wan, Jingwei Xu, Zhenrong Zhang

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