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A deep learning representation and spatial Bayesian cell-type deconvolution for spatial transcriptomics [PDF]

open access: yesPeerJ
Background Spatial transcriptomics provides unprecedented insights into gene expression in the spatial context of tissues; however, some mainstream techniques lack quantitative analysis of uncertainty.
Xiao Yang   +4 more
doaj   +3 more sources

The Negative Binomial INAR(1) Process under Different Thinning Processes: Can We Separate between the Different Models?

open access: yesStats
The literature on discrete valued time series is expanding very fast. Very often we see new models with very similar properties to the existing ones.
Dimitris Karlis   +2 more
doaj   +3 more sources

On Some Stationary INAR(1) Processes with Compound Poisson Distributions

open access: yesRevstat Statistical Journal, 2023
Aly and Bouzar ([2]) used the backward approach in presence of the binomial thinning operator to construct underdispersed stationary first-order autoregressive integer valued (INAR (1)) processes.
Emad-Eldin A. A. Aly, Nadjib Bouzar
doaj   +1 more source

A New First-Order Integer-Valued Autoregressive Model with Bell Innovations

open access: yesEntropy, 2021
A Poisson distribution is commonly used as the innovation distribution for integer-valued autoregressive models, but its mean is equal to its variance, which limits flexibility, so a flexible, one-parameter, infinitely divisible Bell distribution may be ...
Jie Huang, Fukang Zhu
doaj   +1 more source

First-Order Integer-Valued Moving Average Process with Power Series Innovations

open access: yesJournal of Statistical Theory and Applications (JSTA), 2020
In this paper, we introduce a first-order nonnegative integer-valued moving average process with power series innovations based on a Poisson thinning operator (PINMAPS(1)) for modeling overdispersed, equidispersed and underdispersed count time series ...
Eisa Mahmoudi, Ameneh Rostami
doaj   +1 more source

Residual Analysis with Bivariate INAR(1) Models

open access: yesRevstat Statistical Journal, 2018
In this paper we analyze forecasting errors made by random coefficients bivariate integer-valued autoregressive models of order one. These models are based on the thinning operator to support discreteness of data.
Predrag M. Popović   +2 more
doaj   +1 more source

Random Environment INAR Models of Higher Order

open access: yesRevstat Statistical Journal, 2019
Two different random environment INAR models of higher order, RrNGINARmax(p) and RrNGINAR1(p), are introduced. Both of them are of variable order, which is not a random variable.
Aleksandar S. Nastić   +2 more
doaj   +1 more source

Estimation for random coefficient integer-valued autoregressive model under random environment

open access: yesAdvances in Difference Equations, 2019
A first-order random coefficient integer-valued autoregressive model based on the negative binomial thinning operator under r states random environment is introduced.
Yan Cui, Yun Y. Wang
doaj   +1 more source

Bivariate Random Coefficient Integer-Valued Autoregressive Model Based on a ρ-Thinning Operator

open access: yesAxioms
While overdispersion is a common phenomenon in univariate count time series data, its exploration within bivariate contexts remains limited. To fill this gap, we propose a bivariate integer-valued autoregressive model.
Chang Liu, Dehui Wang
doaj   +1 more source

Randomness Test of Thinning Parameters for the NBRCINAR(1) Process

open access: yesAxioms
Non-negative integer-valued time series are usually encountered in practice, and a variety of integer-valued autoregressive processes based on various thinning operators are commonly used to model these count data with temporal dependence. In this paper,
Shuanghong Zhang
doaj   +1 more source

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