Results 51 to 60 of about 8,436,612 (364)

Model Parameter Adaption-Based Multi-Model Algorithm for Extended Object Tracking Using a Random Matrix

open access: yesSensors, 2014
Traditional object tracking technology usually regards the target as a point source object. However, this approximation is no longer appropriate for tracking extended objects such as large targets and closely spaced group objects.
Borui Li   +3 more
doaj   +1 more source

Circular Rosenzweig-Porter random matrix ensemble

open access: yesSciPost Physics, 2022
The Rosenzweig-Porter random matrix ensemble serves as a qualitative phenomenological model for the level statistics and fractality of eigenstates across the many-body localization transition in static systems. We propose a unitary (circular) analogue of
Wouter Buijsman, Yevgeny Bar Lev
doaj   +1 more source

Many-Body Quantum Chaos: Analytic Connection to Random Matrix Theory [PDF]

open access: yesPhysical Review X, 2017
A new theory explains observed connections between the thermal phase in many-body quantum systems and random matrix theory, paving the way to a deeper understanding of this phase.
Pavel Kos, Marko Ljubotina, T. Prosen
semanticscholar   +1 more source

Massive MIMO as a Big Data System: Random Matrix Models and Testbed

open access: yesIEEE Access, 2015
This paper has two parts. The first one deals with how to use large random matrices as building blocks to model the massive data arising from the massive (or large-scale) multiple-input, multiple-output (MIMO) system. As a result, we apply this model for
Changchun Zhang, Robert C. Qiu
doaj   +1 more source

Distributed user profiling via spectral methods

open access: yesStochastic Systems, 2014
User profiling is a useful primitive for constructing personalised services, such as content recommendation. In the present paper we investigate the feasibility of user profiling in a distributed setting, with no central authority and only local ...
Dan-Cristian Tomozei, Laurent Massoulié
doaj   +1 more source

Noninteracting fermions in a trap and random matrix theory [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2018
We review recent advances in the theory of trapped fermions using techniques borrowed from random matrix theory (RMT) and, more generally, from the theory of determinantal point processes.
D. Dean   +3 more
semanticscholar   +1 more source

Pseudo-hermitian random matrix models: General formalism

open access: yesNuclear Physics B, 2022
Pseudo-hermitian matrices are matrices hermitian with respect to an indefinite metric. They can be thought of as the truncation of pseudo-hermitian operators, defined over some Krein space, together with the associated metric, to a finite dimensional ...
Joshua Feinberg, Roman Riser
doaj   +1 more source

A random matrix approach to decoherence [PDF]

open access: yes, 2001
In order to analyze the effect of chaos or order on the rate of decoherence in a subsystem, we aim to distinguish effects of the two types of dynamics by choosing initial states as random product states from two factor spaces representing two subsystems.
Berry M V   +12 more
core   +3 more sources

Unbalanced multi-drawing urn with random addition matrix [PDF]

open access: yesArab Journal of Mathematical Sciences, 2020
In this paper, we consider a two color multi-drawing urn model. At each discrete time step, we draw uniformly at random a sample of m balls (m≥1) and note their color, they will be returned to the urn together with a random number of balls depending on ...
Aguech Rafik, Selmi Olfa
doaj   +1 more source

Integrable random matrix ensembles

open access: yes, 2011
We propose new classes of random matrix ensembles whose statistical properties are intermediate between statistics of Wigner-Dyson random matrices and Poisson statistics.
Bogomolny, E., Giraud, O., Schmit, C.
core   +2 more sources

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