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Modeling zero inflation is not necessary for spatial transcriptomics [PDF]
Genome Biology, 2022 Background Spatial transcriptomics are a set of new technologies that profile gene expression on tissues with spatial localization information. With technological advances, recent spatial transcriptomics data are often in the form of sparse counts with ...
Peiyao Zhao +3 more
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Bayesian model selection reveals biological origins of zero inflation in single-cell transcriptomics [PDF]
Genome Biology, 2020 Background Single-cell RNA sequencing is a powerful tool for characterizing cellular heterogeneity in gene expression. However, high variability and a large number of zero counts present challenges for analysis and interpretation.
Kwangbom Choi +3 more
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An integer GARCH model for a Poisson process with time-varying zero-inflation. [PDF]
PLoS ONE, 2023 A serially dependent Poisson process with time-varying zero-inflation is proposed. Such formulations have the potential to model count data time series arising from phenomena such as infectious diseases that ebb and flow over time. The model assumes that
Isuru Panduka Ratnayake +1 more
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PERFORMA PROPORSI ZERO-INFLATION PADA REGRESI ZERO-INFLATED NEGATIVE BINOMIAL
E-Jurnal Matematika, 2019 Tetanus Neonatorum (TN) is an infectious disease that could be prevented by immunization. East Java Province is the highest numbers of TN case in Indonesia. TN data in East Java contain overdispersion and big proportion of zero-inflation (71,05%).
LUTHFATUL AMALIANA +2 more
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DIF Detection With Zero-Inflation Under the Factor Mixture Modeling Framework [PDF]
Educational and Psychological Measurement, 2022 Sooyong Lee, Suhwa Han, Seung W Choi
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Empirical networks are sparse: Enhancing multiedge models with zero-inflation [PDF]
PNAS NexusGeorges Andres +2 more
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CoRR, 2023 Many real-world bandit applications are characterized by sparse rewards, which can significantly hinder learning efficiency. Leveraging problem-specific structures for careful distribution modeling is recognized as essential for improving estimation efficiency in statistics. However, this approach remains under-explored in the context of bandits.
Haoyu Wei +3 more
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Inflation Dynamics When Inflation Is Near Zero [PDF]
Journal of Money, Credit and Banking, 2012 We discuss the likely evolution of U.S. inflation in the near and medium terms on the basis of (i) past U.S. experience with very low levels of inflation, (ii) the most recent Japanese experience with negative inflation, and (iii) some preliminary U.S. micro evidence on downward nominal wage rigidity. Our findings question the view that stable long‐run
Jeffrey C. Fuhrer +2 more
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A comparison of zero-inflated and hurdle models for modeling zero-inflated count data [PDF]
Journal of Statistical Distributions and Applications, 2021 AbstractCounts data with excessive zeros are frequently encountered in practice. For example, the number of health services visits often includes many zeros representing the patients with no utilization during a follow-up time. A common feature of this type of data is that the count measure tends to have excessive zero beyond a common count ...
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Trials, 2023 Background Two characteristics of commonly used outcomes in medical research are zero inflation and non-negative integers; examples include the number of hospital admissions or emergency department visits, where the majority of patients will have zero ...
Kyung Hyun Lee +4 more
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