Results 31 to 40 of about 928,284 (277)
Nonlinear shrinkage estimation of large-dimensional covariance matrices [PDF]
, 2011 Many statistical applications require an estimate of a covariance matrix and/or its inverse. When the matrix dimension is large compared to the sample size, which happens frequently, the sample covariance matrix is known to perform poorly and may suffer ...
Ledoit, Olivier, Wolf, Michael
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On consistency of the weighted arithmetical mean complex judgement matrix
Journal of Systems Engineering and Electronics, 2007 The weighted arithmetical mean complex judgement matrix (WAMCJM) is the most common method for aggregating group opinions, but it has a shortcoming, namely the WAMCJM of the perfectly consistent judgement matrices given by experts canot guarantee its perfect consistency. An upper bound of the WAMCJM's consistency is presented.
Dong Yucheng, Xu Yinfeng, Ding Lili
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Weighted hesitant bipolar-valued fuzzy soft set in decision-making [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2023 In this research work, we have introduced a new notion of weighted hesitant bipolar-valued fuzzy soft set (WHBFSS) as a generalization of hesitant bipolar-valued fuzzy soft set (HBFSS), and we examine some of its fundamental properties in detail. We’ve
Ajoy Kanti Das +2 more
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Kernel Geometric Mean Metric Learning
Applied Sciences, 2023 Geometric mean metric learning (GMML) algorithm is a novel metric learning approach proposed recently. It has many advantages such as unconstrained convex objective function, closed form solution, faster computational speed, and interpretability over ...
Zixin Feng +4 more
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H ? filtering for stochastic singular fuzzy systems with time-varying delay [PDF]
, 2014 This paper considers the H? filtering problem for stochastic singular fuzzy systems with timevarying delay. We assume that the state and measurement are corrupted by stochastic uncertain exogenous disturbance and that the system dynamic is modeled ...
Cai, Min +3 more
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Hyperspectral Pansharpening Based on Homomorphic Filtering and Weighted Tensor Matrix
Remote Sensing, 2019 Hyperspectral pansharpening is an effective technique to obtain a high spatial resolution hyperspectral (HS) image. In this paper, a new hyperspectral pansharpening algorithm based on homomorphic filtering and weighted tensor matrix (HFWT) is proposed ...
Jiahui Qu +4 more
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Weighted matrix means and symmetrization procedures
Linear Algebra and its Applications, 2013 Here we prove the convergence of the Ando-Li-Mathias and Bini-Meini-Poloni procedures for matrix means. Actually it is proved here that for a two-variable function which maps pairs of positive definite matrices to a positive definite matrix and is not greater than the square mean of two positive definite matrices, the Ando-Li-Mathias and Bini-Meini ...
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A Note On Convexity Inequalities Of Weighted Matrix Geometric Means
, 2022 We offer a new proof of uniform convexity inequalities for the Finsler manifold of nonpositive curvature taken on the space of positive-semidefinite matrices with the weighted matrix geometric mean defining the geodesic between two points. Using the technique of log majorization, we are able to characterize that the equality cases of said equalities ...
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On inclusion relations for absolute summability
International Journal of Mathematics and Mathematical Sciences, 2002 We obtain necessary and (different) sufficient conditions for a series summable |N¯,pn|k ...
B. E. Rhoades, Ekrem Savaş
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Joint robust weighted LMMSE transceiver design for dual-hop AF multiple-antenna relay systems [PDF]
, 2011 In this paper, joint transceiver design for dual-hop amplify-and-forward (AF) MIMO relay systems with Gaussian distributed channel estimation errors in both two hops is investigated.
Fei, Z, Kuang, J, Ma, S, Wu, YC, Xing, C
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