Results 11 to 20 of about 6,719,781 (362)
Comparing Different Specifications of Mean–Geometric Mean Linking
FoundationsMean–geometric mean (MGM) linking compares group differences on a latent variable θ within the two-parameter logistic (2PL) item response theory model.
Alexander Robitzsch
doaj +2 more sources
An Efficient Iterative Approach for Hermitian Matrices Having a Fourth-Order Convergence Rate to Find the Geometric Mean [PDF]
MathematicsThe target of this work is to present a multiplication-based iterative method for two Hermitian positive definite matrices to find the geometric mean. The method is constructed via the application of the matrix sign function.
Tao Liu +4 more
doaj +2 more sources
Order relations of the Wasserstein mean and the spectral geometric mean [PDF]
The Electronic Journal of Linear Algebra, 2023 On the space of positive definite matrices, several operator means are popular and have been studied extensively. In this paper, we investigate the near order and the Löwner order relations on the curves defined by the Wasserstein mean and the spectral ...
Luyining Gan, Huajun Huang
semanticscholar +1 more source
Revisit on spectral geometric mean [PDF]
Linear and multilinear algebra, 2022 In this paper, we introduce the limit, unique solution of the nonlinear equations, geodesic property, tolerance relations and pinch on the spectral geometric mean for two positive definite operators. We show that the spectral geometric mean is a geodesic
Luyining Gan, Sejong Kim
semanticscholar +1 more source
Geometric mean of bipartite concurrences as a genuine multipartite entanglement measure [PDF]
Physical Review Research, 2021 In this work we propose the geometric mean of bipartite concurrences as a genuine multipartite entanglement measure. This measure achieves the maximum value for absolutely maximally entangled states and has desirable properties for quantifying potential ...
Yinfei Li, Jiangwei Shang
semanticscholar +1 more source
Operator spectral geometric versus geometric mean
Linear and Multilinear Algebra, 2023 The coefficients in Theorem 2.2 and Corollary 2.3 have been changed.
Hamid Reza Moradi +2 more
openaire +2 more sources
IEEE Transactions on Wireless Communications, 2021 This paper considers a reconfigurable intelligent surface (RIS)-aided network, which relies on a multiple antenna array aided base station (BS) and an RIS for serving multiple single antenna downlink users. To provide reliable links to all users over the
Hongwen Yu +4 more
semanticscholar +1 more source
Biology & Philosophy, 2022 Showing that the arithmetic mean number of offspring for a trait type often fails to be a predictive measure of fitness was a welcome correction to the philosophical literature on fitness.
P. Takács, Pierrick Bourrat
semanticscholar +1 more source
Aggregating Composite Indicators through the Geometric Mean: A Penalization Approach
De Computis, 2022 In this paper, we introduce a penalized version of the geometric mean. In analogy with the Mazziotta Pareto Index, this composite indicator is derived as a product between the geometric mean and a penalization term to account for the unbalance among ...
F. Mariani, Mariateresa Ciommi
semanticscholar +1 more source