Results 31 to 40 of about 2,707 (89)
The computation of stationary distributions of Markov chains through perturbations
International Journal of Stochastic Analysis, Volume 4, Issue 1, Page 29-46, 1991., 1990 An algorithmic procedure for the determination of the stationary distribution of a finite, m‐state, irreducible Markov chain, that does not require the use of methods for solving systems of linear equations, is presented. The technique is based upon a succession of m, rank one, perturbations of the trivial doubly stochastic matrix whose known steady ...
Jeffery J. Hunter
wiley +1 more source
Symmetry Dependence of Localization in Quasi- 1- dimensional Disordered Wires
, 2000 The crossover in energy level statistics of a quasi-1-dimensional disordered wire as a function of its length L is used, in order to derive its averaged localization length, without magnetic field, in a magnetic field and for moderate spin orbit ...
A. D. Mirlin +30 more
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Open String Renormalization Group Flow as a Field Theory
Fortschritte der Physik, Volume 72, Issue 11, November 2024.Abstract This article shows that the integral flow‐lines of the RG‐flow of open string theory can be interpreted as the solitons of a Hořova–Lifshitz sigma‐model of open membranes. The authors argue that the effective background description of this model implies the g‐theorem of open string theory.
Julius Hristov
wiley +1 more source
Magnetolocalization in disordered quantum wires
, 2001 The magnetic field dependent localization in a disordered quantum wire is considered nonperturbatively. An increase of an averaged localization length with the magnetic field is found, saturating at twice its value without magnetic field.
A. Altland +80 more
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Diversity and Distributions, Volume 30, Issue 10, October 2024.Abstract Aim Planning conservation action requires accurate estimates of abundance and distribution of the target species. For many mammals, particularly those inhabiting tropical forests, there are insufficient data to assess their conservation status.
Bart J. Harmsen +57 more
wiley +1 more source
Model Uncertainty and Bayesian Model Averaging in Vector Autoregressive Processes [PDF]
Economic forecasts and policy decisions are often informed by empirical analysis based on econometric models. However, inference based upon a single model, when several viable models exist, limits its usefulness.
Herman K. van Dijk, Rodney W. Strachan
core +3 more sources
Expanding the Family of Grassmannian Kernels: An Embedding Perspective
, 2014 Modeling videos and image-sets as linear subspaces has proven beneficial for many visual recognition tasks. However, it also incurs challenges arising from the fact that linear subspaces do not obey Euclidean geometry, but lie on a special type of ...
B. Kulis +10 more
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Rational conformal field theory with matrix level and strings on a torus
, 2014 Study of the matrix-level affine algebra $U_{m,K}$ is motivated by conformal field theory and the fractional quantum Hall effect. Gannon completed the classification of $U_{m,K}$ modular-invariant partition functions. Here we connect the algebra $U_{2,K}$
Nassar, Ali, Walton, Mark A.
core +1 more source
Generalized Rank Pooling for Activity Recognition
, 2017 Most popular deep models for action recognition split video sequences into short sub-sequences consisting of a few frames; frame-based features are then pooled for recognizing the activity.
Cherian, Anoop +3 more
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Hermiticity and the Cohomology Condition in Topological Yang-Mills Theory
, 1993 The symmetries of the topological Yang-Mills theory are studied in the Hamiltonian formalism and the generators of the twisted N=2 superPoincar\'e algebra are explicitly constructed.
Demers, J. -G.
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