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SCALABLE NON-SQUARE BLIND SOURCE SEPARATION IN THE PRESENCE OF NOISE
SCALABLE NON-SQUARE SOURCE SEPARATION PRESENCE OF NOISE
2015/9/29
Few source separation and independent component analysis approaches attempt to deal with noisy data. Weconsider an additive noise mixing model with an arbitrary number of sensors and possibly more sou...
Presence-Only Data and the EM Algorithm
Boosted trees EM algorithm Logistic model Presence-only data Use-availability data
2015/8/21
In ecological modeling of the habitat of a species, it can be prohibitively expensive to determine species absence.Presence-only data consist of a sample of locations with observed presences and a sep...
Detecting the Presence of Mixing with Multiscale Maximum Likelihood
Log-concave Mixture detection
2015/8/20
A test of homogeneity tries to decide whether observations come from a single distribution or from a mixture of several distributions.
A powerful theory has been developed for the case where the comp...
An algorithm for autonomously plotting solution sets in the presence of turning points
turning point implicit function cusp bifurcation curv
2011/8/23
Abstract: Plotting solution sets for particular equations may be complicated by the existence of turning points. Here we describe an algorithm which not only overcomes such problematic points, but doe...
Estimation of the parameters of the generalized exponential distribution in the presence of one outlier generated from uniform distribution
Generalized exponential distribution uniform distribution
2010/9/26
Gupta and Kundu (1999) defined the cumulative distribution function of the generalized exponential (GE). It has many properties that are quite similar to those of the gamma distribution. This paper de...
Compound decision in the presence of proxies with an application to spatio-temporal data
Compound decision presence of proxies application
2011/1/19
We study the problem of incorporating covariates in a compound decision setup.It is desired to estimate the means of n response variables, which are independent and normally distributed, and each is a...
Weak solutions to lubrication equations in the presence of strong slippage
Weak solutions lubrication equations presence of strong slippage
2011/1/18
The existence of global weak solutions is proved for one-dimensional lubrication models that describe the dewetting process of nanoscopic thin polymer films on hy-drophobyzed substrates and take accou...
Numerical Resolution near t = 0 of NonlinearEvolution Equations in the Presence of Corner Singularities in Space Dimension 1
Numerical Resolution Nonlinear Evolution Equations
2010/11/23
The incompatibilities between the initial and boundary data will cause singularities at the time-space corners, which in turn adversely affect the accuracy of the numerical schemes used to compute the...
Positive Quantization in the Presence of a Variable Magnetic Field
Magnetic field pseudodifferential operator coherent state Berezin operator Bargmann transform
2010/12/3
Starting with a previously constructed family of coherent states, we introduce the Berezin quantization for a particle in a variable magnetic field and we show that it constitutes a strict quantizatio...
Singularities of the susceptibility of an SRB measure in the presence of stable-unstable tangencies
SRB measure stable-unstable tangencies
2010/4/1
Let $\rho$ be an SRB (or "physical"), measure for the discrete time evolution given by a map $f$, and let $\rho(A)$ denote the expectation value of a smooth function $A$. If $f$ depends on a parameter...
On Perron's unit root tests in the presence of an innovation variance break
Unit Root Trend Break Innovation Break Break Date
2010/9/14
The unit root tests of Perron (1989, Econometrica) were designed to have power against the stationary alternative characterized by a break in the trend function. We show that all versions of Perron’s ...
MHD Couette flow in a rotating system in the presence of an inclined magnetic field
MHD Couette flow Hartmann number rotation parameter
2010/9/17
Steady hydromagnetic Couette flow of a viscous incompressible electrically conducting fluid in a rotating system in the presence of an inclined magnetic field is studied. Exact solution of the governi...
Chemical reaction, heat and mass transfer on nonlinear MHD boundary layer flow through a vertical porous surface in the presence of suction
Buoyancy effects Chemical reaction
2010/9/17
The effect of chemical reaction on the forced and free convection boundary layer that flows in a semi-infinite expanse of an electrically conducting viscous incompressible fluid past vertical porous p...
Exact solutions of the modified Gross-Pitaevskii equation in `smart' periodic potentials in the presence of external source
exact solutions modified Gross-Pitaevskii equation
2010/4/6
We report wide class of exact solutions of the modified Gross-Pitaevskii equation (GPE) in `smart' Jacobi elliptic potentials: $V(\xi)=-V_{0}{\rm sn(\xi,m)}$, $V(\xi)=-V_{0}{\rm cn(\xi,m)}$, and $V(\x...
Exact Solutions of Incompressible Couette Flow with Constant Temperature and Constant Heat Flux on Walls in the Presence of Radiation
Transient Natural convection Channel flow Heat flux Exact solution Radiation
2009/10/9
The present paper investigates a closed form solution for the transient free convection flow of a viscous fluid between 2 infinite vertical parallel plates in the presence of radiation. The flow is se...