Results 81 to 90 of about 1,286,114 (315)
Flexible Rasch Mixture Models with Package psychomix [PDF]
Measurement invariance is an important assumption in the Rasch model and mixture models constitute a flexible way of checking for a violation of this assumption by detecting unobserved heterogeneity in item response data.
Carolin Strobl +3 more
core
Makeham mortality models as mixtures: Advancing mortality estimations through competing risks frameworks [PDF]
Demographic ResearchBACKGROUND: The Makeham term serves as a fundamental component in mortality modeling, offering a constant additive hazard that accounts for background mortality factors usually unrelated to the aging process.
Silvio Cabral Patricio, Trifon Missov
doaj +1 more source
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Microbiology SpectrumGiven low seroconversion rates following human papillomavirus (HPV) infection, fixed external cutoffs may lead to errors in estimating HPV seroprevalence.
Kristy Ng +8 more
doaj +1 more source
The Search Problem in Mixture Models
J. Mach. Learn. Res., 2016 We consider the task of learning the parameters of a {\em single} component of a mixture model, for the case when we are given {\em side information} about that component, we call this the "search problem" in mixture models. We would like to solve this with computational and sample complexity lower than solving the overall original problem, where one ...
Avik Ray +3 more
openaire +4 more sources
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
Asymptotic behaviour of the posterior distribution in overfitted mixture models. [PDF]
In this paper we study the asymptotic behaviour of the posterior distribution in a mixture model when the number of components in the mixture is larger than the true number of components, a situation commonly referred to as overfitted mixture.
Rousseau, Judith, Mengersen, Kerrie
core
Mixture-model-based CE states provide better interpretation of CE activity.
A) H3K27Ac ChIP-seq signals at active CEs predicted by different methods: only mixture model identified (orange), only peak calling identified (blue), and by both mixture model and peak calling (grey). Percentages of data points for each group are shown.
Timothy I. Shaw (11127812) +9 more
core +1 more source
Asymmetric multivariate normal mixture GARCH [PDF]
, 2008 An asymmetric multivariate generalization of the recently proposed class of normal mixture GARCH models is developed. Issues of parametrization and estimation are discussed.
Mittnik, Stefan +2 more
core
Stochastic characterization of navigation strategies in an automated variant of the Barnes maze
eLifeAnimals can use a repertoire of strategies to navigate in an environment, and it remains an intriguing question how these strategies are selected based on the nature and familiarity of environments.
Ju-Young Lee +2 more
doaj +1 more source