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stat.ME2023
Variable selection in a specific regression time series of counts
Marina Gomtsyan
Time series of counts occurring in various applications are often overdispersed, meaning their variance is much larger than the mean. This paper proposes a novel variable selection…
math.ST2023
Sign-consistent estimation in a sparse Poisson model
Marina Gomtsyan, Céline Lévy-Leduc, Sarah Ouadah +1
In this work, we consider an estimation method in sparse Poisson models inspired by [1] and provide novel sign consistency results under mild conditions.