Results 31 to 40 of about 38,752 (314)
South African Journal of Economic and Management Sciences, 2018 Volatile markets and economic environments can significantly distort the shape and smoothness of yield curve movements. This study explores the influence of movements in United States interest rates on South African interest rates.
Kavir Patel +2 more
doaj +1 more source
Eigenvector-spatial localisation [PDF]
Tellus A: Dynamic Meteorology and Oceanography, 2021 We present a new multiscale covariance localisation method for ensemble data assimilation that is based on the estimation of eigenvectors and subsequent projections, together with traditional spatial localisation applied with a range of localisation lengths.
Travis M. Harty +2 more
openaire +3 more sources
Localization and universality of eigenvectors in directed random graphs [PDF]
Phys. Rev. Lett. 126, 040604 (2021), 2020 Although the spectral properties of random graphs have been a long-standing focus of network theory, the properties of right eigenvectors of directed graphs have so far eluded an exact analytic treatment. We present a general theory for the statistics of the right eigenvector components in directed random graphs with a prescribed degree distribution ...
arxiv +1 more source
Automatic hierarchical model builder
Journal of Chemometrics, Volume 36, Issue 12, December 2022., 2022 Abstract When building classification models of complex systems with many classes, the traditional chemometric approaches such as discriminant analysis or soft independent modeling of class analogy often fail. Some people resort to advanced deep neural network, but this is only an option if there is access to very many samples.
Lorenzo Marchi +7 more
wiley +1 more source
Iheringia: Série Zoologia, 2004 The relationship between body size and geographic range was analyzed for 70 species of terrestrial Carnivora ("fissipeds") of the New World, after the control of phylogenetic patterns in the data using phylogenetic eigenvector regression.
Natália M. Tôrres +1 more
doaj +1 more source
Journal of Statistical Mechanics: Theory and ExperimentAbstract Among the performance-enhancing procedures for Hopfield-type networks that implement associative memory, Hebbian unlearning (HU) (or dreaming) strikes for its simplicity and lucid biological interpretation. However, it does not easily lend to a clear analytical understanding.
Benedetti, Marco +3 more
openaire +3 more sources
Eigenvectors of Tensors—A Primer [PDF]
Acta Applicandae Mathematicae, 2018 We give an introduction to the theory and to some applications of eigenvectors of tensors (in other words, invariant one-dimensional subspaces of homogeneous polynomial maps), including a review of some concepts that are useful for their discussion. The intent is to give practitioners an overview of fundamental notions, results and techniques.
openaire +3 more sources
IEEE AccessIdentifying lung sound signal patterns is essential for detecting and monitoring respiratory diseases. Existing approaches for analyzing respiratory sounds need domain specialists.
Naseem Babu +2 more
doaj +1 more source
International Journal for Simulation and Multidisciplinary Design Optimization, 2020 In this work, we deal an elasticity model in 2D and 3D dimension for deformation under constraint by taking into account the direction of the deformation displacement. This work is a result of an article [A. Azzayani et al., Br. J. Math. Comput.
Azzayani Ayoub
doaj +1 more source
Tree decomposition by eigenvectors
Linear Algebra and its Applications, 2009 25 ...
Torsten Sander, J. W. Sander
openaire +3 more sources