Results 31 to 40 of about 2,104,160 (282)

The maximum likelihood degree [PDF]

open access: yesAmerican Journal of Mathematics, 2006
Maximum likelihood estimation in statistics leads to the problem of maximizing a product of powers of polynomials. We study the algebraic degree of the critical equations of this optimization problem. This degree is related to the number of bounded regions in the corresponding arrangement of hypersurfaces, and to the Euler characteristic of the ...
Catanese, Fabrizio   +3 more
openaire   +2 more sources

Maximum-likelihood absorption tomography

open access: yes, 2002
Maximum-likelihood methods are applied to the problem of absorption tomography. The reconstruction is done with the help of an iterative algorithm. We show how the statistics of the illuminating beam can be incorporated into the reconstruction.
  +13 more
core   +1 more source

Entropic optimal transport is maximum-likelihood deconvolution [PDF]

open access: yes, 2018
We give a statistical interpretation of entropic optimal transport by showing that performing maximum-likelihood estimation for Gaussian deconvolution corresponds to calculating a projection with respect to the entropic optimal transport distance.
Rigollet, Philippe, Weed, Jonathan
core   +3 more sources

Parameter uncertainties in weighted unbinned maximum likelihood fits

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Parameter estimation via unbinned maximum likelihood fits is central for many analyses performed in high energy physics. Unbinned maximum likelihood fits using event weights, for example to statistically subtract background contributions via the sPlot ...
Christoph Langenbruch
doaj   +1 more source

Statistical Pruning for Near-Maximum Likelihood Decoding [PDF]

open access: yes, 2007
In many communications problems, maximum-likelihood (ML) decoding reduces to finding the closest (skewed) lattice point in N-dimensions to a given point xisin CN. In its full generality, this problem is known to be NP-complete.
Gowaikar, Radhika, Hassibi, Babak
core   +2 more sources

Maximum Likelihood Estimation for the Fractional Vasicek Model

open access: yesEconometrics, 2020
This paper estimates the drift parameters in the fractional Vasicek model from a continuous record of observations via maximum likelihood (ML). The asymptotic theory for the ML estimates (MLE) is established in the stationary case, the explosive case ...
Katsuto Tanaka, Weilin Xiao, Jun Yu
doaj   +1 more source

Maximum Likelihood Estimation of Stochastic Fractional Singular Models

open access: yesIEEE Access, 2021
Using the non-causal nature of a fractional-order singular (FOS) model, this paper deals with the modification of an estimation algorithm developed by Nosrati and Shafiee, and demonstrates how the derived estimation procedure can be adjusted by ...
Komeil Nosrati   +2 more
doaj   +1 more source

The approximate maximum-likelihood certificate

open access: yes, 2011
A new property which relies on the linear programming (LP) decoder, the approximate maximum-likelihood certificate (AMLC), is introduced. When using the belief propagation decoder, this property is a measure of how close the decoded codeword is to the LP
Burshtein, David, Goldenberg, Idan
core   +1 more source

Maximum likelihood estimation for social network dynamics [PDF]

open access: yes, 2009
A model for network panel data is discussed, based on the assumption that the observed data are discrete observations of a continuous-time Markov process on the space of all directed graphs on a given node set, in which changes in tie variables are ...
Koskinen, Johan   +2 more
core   +6 more sources

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel   +3 more
wiley   +1 more source

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