Results 31 to 40 of about 1,318,109 (301)

Much Ado About Nothing: Multiple Imputation to Balance Unbalanced Designs for Two-Way Analysis of Variance

open access: yesMethodology, 2020
In earlier literature, multiple imputation was proposed to create balance in unbalanced designs, as an alternative to Type III sum of squares in two-way ANOVA.
Joost R. van Ginkel   +1 more
doaj   +1 more source

Optimal method for determining the intraclass correlation coefficients of urinary biomarkers such as dialkylphosphates from imputed data

open access: yesEnvironment International, 2022
Urinary biomarkers are commonly used in epidemiological studies as surrogates or indicators of exposure to chemical substances. Evaluating the reliability of a biomarker is highly important because use of an unreliable marker may lead to ...
Yukiko Nishihama   +3 more
doaj   +1 more source

Nonparametric statistical inference and imputation for incomplete categorical data [PDF]

open access: yesStatistics and Its Interface, 2020
9 pages, 2 ...
Wang, Chaojie   +3 more
openaire   +2 more sources

When Does Choice of Accuracy Measure Alter Imputation Accuracy Assessments? [PDF]

open access: yesPLoS ONE, 2015
Imputation, the process of inferring genotypes for untyped variants, is used to identify and refine genetic association findings. Inaccuracies in imputed data can distort the observed association between variants and a disease.
Shelina Ramnarine   +10 more
doaj   +1 more source

Accounting for multiple imputation-induced variability for differential analysis in mass spectrometry-based label-free quantitative proteomics.

open access: yesPLoS Computational Biology, 2022
Imputing missing values is common practice in label-free quantitative proteomics. Imputation aims at replacing a missing value with a user-defined one.
Marie Chion   +2 more
doaj   +1 more source

A genotype imputation method for de-identified haplotype reference information by using recurrent neural network.

open access: yesPLoS Computational Biology, 2020
Genotype imputation estimates the genotypes of unobserved variants using the genotype data of other observed variants based on a collection of haplotypes for thousands of individuals, which is known as a haplotype reference panel.
Kaname Kojima   +5 more
doaj   +2 more sources

Multiple Imputation of Missing Data in Educational Production Functions

open access: yesComputation, 2022
Educational production functions rely mostly on longitudinal data that almost always exhibit missing data. This paper contributes to a number of avenues in the literature on the economics of education and applied statistics by reviewing the theoretical ...
Amira Elasra
doaj   +1 more source

Performance of clustering procedures for grouping germplasms based on mixture data with missing observations

open access: yesThe Indian Journal of Agricultural Sciences, 2023
Occurrence of missing observations in mixture of qualitative and quantitative trait data is a common feature in breeding experiments. However, it becomes difficult to cluster the germplasms in presence of missing data.
RUPAM KUMAR SARKAR   +3 more
doaj   +1 more source

The Optimal Machine Learning-Based Missing Data Imputation for the Cox Proportional Hazard Model

open access: yesFrontiers in Public Health, 2021
An adequate imputation of missing data would significantly preserve the statistical power and avoid erroneous conclusions. In the era of big data, machine learning is a great tool to infer the missing values.
Chao-Yu Guo   +4 more
doaj   +1 more source

ST-GIN: An Uncertainty Quantification Approach in Traffic Data Imputation with Spatio-Temporal Graph Attention and Bidirectional Recurrent United Neural Networks [PDF]

open access: yes2023 IEEE 26th International Conference on Intelligent Transportation Systems (ITSC), 2023
Traffic data serves as a fundamental component in both research and applications within intelligent transportation systems. However, real-world transportation data, collected from loop detectors or similar sources, often contains missing values (MVs ...
Zepu Wang   +4 more
semanticscholar   +1 more source

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