Results 1 to 10 of about 16,362,739 (323)

Deep imputation of missing values in time series health data: A review with benchmarking. [PDF]

open access: yesJ Biomed Inform, 2023
The imputation of missing values in multivariate time series (MTS) data is a critical step in ensuring data quality and producing reliable data-driven predictive models.
Kazijevs M, Samad MD.
europepmc   +3 more sources

The impact of imputation quality on machine learning classifiers for datasets with missing values. [PDF]

open access: yesCommun Med (Lond), 2023
Background Classifying samples in incomplete datasets is a common aim for machine learning practitioners, but is non-trivial. Missing data is found in most real-world datasets and these missing values are typically imputed using established methods ...
Shadbahr T   +18 more
europepmc   +3 more sources

Optimal clustering with missing values [PDF]

open access: yesBMC Bioinformatics, 2019
Background Missing values frequently arise in modern biomedical studies due to various reasons, including missing tests or complex profiling technologies for different omics measurements.
Shahin Boluki   +3 more
doaj   +4 more sources

Benchmarking missing-values approaches for predictive models on health databases. [PDF]

open access: yesGigascience, 2022
Background As databases grow larger, it becomes harder to fully control their collection, and they frequently come with missing values. These large databases are well suited to train machine learning models, e.g., for forecasting or to extract biomarkers
Perez-Lebel A   +4 more
europepmc   +3 more sources

A note on handling conditional missing values [PDF]

open access: yesGlobal Epidemiology
In medical research, some variables are conditionally defined on some levels of another variable, leading to conditional missing data. Imputation of this type of structural missing data is needed given inefficiency of listwise deletion inherent in ...
Mohammad Ali Mansournia   +2 more
doaj   +2 more sources

A Pragmatic Ensemble Strategy for Missing Values Imputation in Health Records. [PDF]

open access: yesEntropy (Basel), 2022
Pristine and trustworthy data are required for efficient computer modelling for medical decision-making, yet data in medical care is frequently missing.
Batra S   +5 more
europepmc   +2 more sources

Identify the most appropriate imputation method for handling missing values in clinical structured datasets: a systematic review. [PDF]

open access: yesBMC Med Res Methodol
Comprehending the research dataset is crucial for obtaining reliable and valid outcomes. Health analysts must have a deep comprehension of the data being analyzed.
Afkanpour M, Hosseinzadeh E, Tabesh H.
europepmc   +2 more sources

Imputation of missing values for electronic health record laboratory data. [PDF]

open access: yesNPJ Digit Med, 2021
Laboratory data from Electronic Health Records (EHR) are often used in prediction models where estimation bias and model performance from missingness can be mitigated using imputation methods.
Li J   +11 more
europepmc   +2 more sources

Capturing Missing Tuples and Missing Values [PDF]

open access: yesProceedings of the twenty-ninth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, 2010
Databases in real life are often neither entirely closed-world nor entirely open-world. Indeed, databases in an enterprise are typically partially closed, in which a part of the data is constrained by master data that contains complete information about the enter prise in certain aspects 121].
Fan, Wenfei, Geerts, Floris
core   +6 more sources

missMDA: A Package for Handling Missing Values in Multivariate Data Analysis

open access: yesJournal of Statistical Software, 2016
We present the R package missMDA which performs principal component methods on incomplete data sets, aiming to obtain scores, loadings and graphical representations despite missing values.
Julie Josse, François Husson
doaj   +2 more sources

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