Results 1 to 10 of about 594 (117)

PERFORMA PROPORSI ZERO-INFLATION PADA REGRESI ZERO-INFLATED NEGATIVE BINOMIAL

open access: yesE-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
doaj   +2 more sources

Zero-Inflated Bandits

open access: yesCoRR, 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
openaire   +3 more sources

An Omnibus Test for Differential Distribution Analysis of Continuous Microbiome Data

open access: yesIEEE Access, 2021
The human microbiome is comprised of thousands of microbial species. These species will substantially influence the normal physiology of humans and cause numerous diseases. Microbiome data can be measured by sequencing, microarray, or other technologies.
Xiang Lin   +3 more
doaj   +1 more source

Modeling zero inflation is not necessary for spatial transcriptomics

open access: yesGenome 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
doaj   +1 more source

Improving performance of hurdle models using rare-event weighted logistic regression: an application to maternal mortality data

open access: yesRoyal Society Open Science, 2023
In this paper, performance of hurdle models in rare events data is improved by modifying their binary component. The rare-event weighted logistic regression model is adopted in place of logistic regression to deal with class imbalance due to rare events.
Sharon Awuor Okello   +2 more
doaj   +1 more source

Monitoring the Zero-Inflated Time Series Model of Counts with Random Coefficient

open access: yesEntropy, 2021
In this research, we consider monitoring mean and correlation changes from zero-inflated autocorrelated count data based on the integer-valued time series model with random survival rate.
Cong Li, Shuai Cui, Dehui Wang
doaj   +1 more source

A comparison of zero-inflated and hurdle models for modeling zero-inflated count data [PDF]

open access: yesJournal 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 ...
openaire   +2 more sources

Bayesian model selection reveals biological origins of zero inflation in single-cell transcriptomics

open access: yesGenome 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
doaj   +1 more source

Evaluation of negative binomial and zero-inflated negative binomial models for the analysis of zero-inflated count data: application to the telemedicine for children with medical complexity trial

open access: yesTrials, 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
doaj   +1 more source

A comparison of statistical methods for modeling count data with an application to hospital length of stay

open access: yesBMC Medical Research Methodology, 2022
Background Hospital length of stay (LOS) is a key indicator of hospital care management efficiency, cost of care, and hospital planning. Hospital LOS is often used as a measure of a post-medical procedure outcome, as a guide to the benefit of a treatment
Gustavo A. Fernandez   +1 more
doaj   +1 more source

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