Robust Beamforming Based on Covariance Matrix Reconstruction in FDA-MIMO Radar to Suppress Deceptive Jamming. [PDF]
Sensors (Basel), 2022 Wan F, Xu J, Zhang Z.
europepmc +1 more source
Inference about Clustering and Parametric Assumptions in Covariance Matrix Estimation [PDF]
Selecting an estimator for the variance covariance matrix is an important step in hypothesis testing. From less robust to more robust, the available choices include: Eicker/White heteroskedasticity-robust standard errors, Newey and West ...
Mikko Packalen, Tony Wirjanto
core
Agribusiness, EarlyView.ABSTRACT Social tensions and resource depletion pose significant challenges to the agri‐food sector, highlighting the need for coordinated strategies to ensure sustainability in supply chains. Despite its critical importance, the relationship between coordination mechanisms and sustainability performance remains underexplored.
Carlos Moreno‐Miranda, Liesbeth Dries
wiley +1 more source
Determinant of Covariance Matrix Model Coupled with AdaBoost Classification Algorithm for EEG Seizure Detection. [PDF]
Diagnostics (Basel), 2021 Al-Hadeethi H +3 more
europepmc +1 more source
Price Transmission During Promotions: A Case Study of Spanish Milk Brands
Agribusiness, EarlyView.ABSTRACT Price promotion is the marketing tool typically used by retail brands to boost sales and gain market share. In this paper, we intend to investigate the price transmission mechanism among competitive brands in Spain when price reductions that are associated with price promotions take place.
Yasmine Bedoui +2 more
wiley +1 more source
A New Variance-Covariance Matrix for Improving Positioning Accuracy in High-Speed GPS Receivers. [PDF]
Sensors (Basel), 2021 Rahemi N, Mosavi MR, Martín D.
europepmc +1 more source
Agribusiness, EarlyView.ABSTRACT Despite the broad focus on necessity‐ and opportunity‐driven entrepreneurship in research and policy, the entrepreneurial dichotomy within the agribusiness context has not been adequately addressed. This study contributes to closing this knowledge gap by examining youth's perceptions of agribusiness through the lens of the push‐pull motivation
Cool Dady Mangole +6 more
wiley +1 more source
Estimation of the number of spiked eigenvalues in a covariance matrix by bulk eigenvalue matching analysis. [PDF]
J Am Stat Assoc, 2023 Ke ZT, Ma Y, Lin X.
europepmc +1 more source
Return and Volatility Spillovers Among Major Cotton Markets
Agribusiness, EarlyView.ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli +3 more
wiley +1 more source
Individuals redistribution based on differential evolution for covariance matrix adaptation evolution strategy. [PDF]
Sci Rep, 2022 Chen Z, Liu Y.
europepmc +1 more source