Results 11 to 20 of about 858,976 (241)

Targeted Maximum Likelihood Estimation using Exponential Families [PDF]

, 2014
Targeted maximum likelihood estimation (TMLE) is a general method for estimating parameters in semiparametric and nonparametric models. Each iteration of TMLE involves fitting a parametric submodel that targets the parameter of interest.
Díaz, Iván, Rosenblum, Michael
core   +3 more sources

Hedged maximum likelihood estimation

, 2010
This paper proposes and analyzes a new method for quantum state estimation, called hedged maximum likelihood (HMLE). HMLE is a quantum version of Lidstone's Law, also known as the "add beta" rule.
Blume-Kohout, Robin
core   +1 more source

Maximum likelihood drift estimation for a threshold diffusion [PDF]

, 2018
We study the maximum likelihood estimator of the drift parameters of a stochastic differential equation, with both drift and diffusion coefficients constant on the positive and negative axis, yet discontinuous at zero.
Antoine Lejay, Billingsley P., Ibragimov I. A., Ikeda N., Itô K., Jeganathan P., Karatzas I., Le Cam L., Le Gall J.‐F., LeCam L., Lipster R., Lipton A., Paolo Pigato, Rogers L. C. G., Rényi A., Watanabe S.   +15 more
core   +4 more sources

Estimating Maximum Likelihood Phylogenies with PhyML [PDF]

, 2009
Our understanding of the origins, the functions and/or the structures of biological sequences strongly depends on our ability to decipher the mechanisms of molecular evolution. These complex processes can be described through the comparison of homologous sequences in a phylogenetic framework.
Frédéric Delsuc, Olivier Gascuel, Jean-François Dufayard, Stéphane Guindon, Stéphane Guindon   +4 more
openaire   +5 more sources

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

Population Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier, Christophe Barbraud, Maxime Amy, Sabine Orlowski, Jean Hivert, Gabrielle Dicque, Matthieu Le Corre   +6 more
wiley   +1 more source

A Simple Approach to Maximum Intractable Likelihood Estimation [PDF]

, 2013
Approximate Bayesian Computation (ABC) can be viewed as an analytic approximation of an intractable likelihood coupled with an elementary simulation step.
Johansen, Adam M., Rubio, F. J.
core   +2 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Maximum likelihood estimation for Wishart processes

Stochastic Processes and their Applications, 2016
In the last decade, there has been a growing interest to use Wishart processes for modelling, especially for financial applications. However, there are still few studies on the estimation of its parameters. Here, we study the Maximum Likelihood Estimator (MLE) in order to estimate the drift parameters of a Wishart process. We obtain precise convergence
Alfonsi, Aurélien, Kebaier, Ahmed, Rey, Clément   +2 more
openaire   +7 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source