Search Results - subject:"eigenvalues"

An exact approach to sparse principal component analysis

Farcomeni, Alessio - In: Computational Statistics 24 (2009) 4, pp. 583-604

Persistent link: https://www.econbiz.de/10008467046

Comparative Study of Alternatives Analysis of Incomplete Disjunctive Tables

Castro, Zárraga; Amaya, María; Goitisolo Lezama, Beatriz - Departamento de Economía Aplicada III (Econometría y … - 2000

[EN] Multiple Correspondence Analysis (MCA) studies the relationship between several categorical variables defined with respect to a certain population. However, one of the main sources of information are those surveys in which it is usual to find a certain number of absent data and conditioned...

Persistent link: https://www.econbiz.de/10005650105

Bicliques and Eigenvalues

Haemers, W.H. - Tilburg University, School of Economics and Management - 1999

Persistent link: https://www.econbiz.de/10011087223

Comparing different approaches for solving optimizing models with significant nonlinearities

Stemp, Peter J.; Herbert, Ric D. - In: Mathematics and Computers in Simulation (MATCOM) 78 (2008) 2, pp. 357-366

a model with complex-valued eigenvalues with large imaginary parts and hence significant cycles. Such a model can be …

Persistent link: https://www.econbiz.de/10011050656

Spectral reconstruction of complex networks

Comellas, Francesc; Diaz-Lopez, Jordi - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 25, pp. 6436-6442

In this paper we study the reconstruction of a network topology from the eigenvalues of its Laplacian matrix. We … eigenvalues. We show that this combinatorial optimization method, together with the information contained in the Laplacian …

Persistent link: https://www.econbiz.de/10010591632

A Note Regarding the Condition Number: The Case of Spurious and Latent Multicollinearity

Lazaridis, Alexis - In: Quality & Quantity: International Journal of Methodology 41 (2007) 1, pp. 123-135

Persistent link: https://www.econbiz.de/10009396152

Nonregular Graphs with Three Eigenvalues

van Dam, Edwin Robert - Tilburg University, School of Economics and Management - 1997

We study nonregular graphs with three eigenvalues.We determine all the ones with least eigenvalue -2, and give new …

Persistent link: https://www.econbiz.de/10011087074

Disconnected Vertex Sets and Equidistant Code Pairs

Haemers, W.H. - Tilburg University, School of Economics and Management - 1996

Persistent link: https://www.econbiz.de/10011086975

Small Regular Graphs with Four Eigenvalues

van Dam, Edwin Robert; Spence, E. - Tilburg University, School of Economics and Management - 1996

For most feasible spectra of connected regular graphs with four distinct eigenvalues and at most 30 vertices we find …

Persistent link: https://www.econbiz.de/10011087114

Inexact Iterations for the Approximation of Eigenvalues and Eigenvectors

Smit, P. - Tilburg University, School of Economics and Management - 1996

The algorithms of inverse iteration and Rayleigh quotient iteration for approximating an eigenpair of a matrix contain a step in which a matrix-vector equation must be solved.The behaviour of these algorithms is analysed if this equation is solved only approximately with a known tolerance.

Persistent link: https://www.econbiz.de/10011087151