Results 21 to 30 of about 131,123 (260)

Efficient technique of microarray missing data imputation using clustering and weighted nearest neighbour

open access: yesScientific Reports, 2021
For most bioinformatics statistical methods, particularly for gene expression data classification, prognosis, and prediction, a complete dataset is required.
Aditya Dubey, Akhtar Rasool
doaj   +1 more source

An Intelligent Missing Data Imputation Techniques: A Review

open access: yesJOIV: International Journal on Informatics Visualization, 2022
The incomplete dataset is an unescapable problem in data preprocessing that primarily machine learning algorithms could not employ to train the model.
Kimseth Seu, Mi-Sun Kang, HwaMin Lee
doaj   +1 more source

Transformed Distribution Matching for Missing Value Imputation

open access: yesCoRR, 2023
We study the problem of imputing missing values in a dataset, which has important applications in many domains. The key to missing value imputation is to capture the data distribution with incomplete samples and impute the missing values accordingly. In this paper, by leveraging the fact that any two batches of data with missing values come from the ...
He Zhao 0001   +3 more
openaire   +3 more sources

A simulation study on missing data imputation for dichotomous variables using statistical and machine learning methods

open access: yesScientific Reports, 2023
The problem of missing data, particularly for dichotomous variables, is a common issue in medical research. However, few studies have focused on the imputation methods of dichotomous data and their performance, as well as the applicability of these ...
Yingfeng Ge, Zhiwei Li, Jinxin Zhang
doaj   +1 more source

Mechanism-aware imputation: a two-step approach in handling missing values in metabolomics

open access: yesBMC Bioinformatics, 2022
When analyzing large datasets from high-throughput technologies, researchers often encounter missing quantitative measurements, which are particularly frequent in metabolomics datasets.
Jonathan P. Dekermanjian   +4 more
doaj   +1 more source

Dimensionality reduction with missing values imputation

open access: yesCoRR, 2017
In this study, we propose a new statical approach for high-dimensionality reduction of heterogenous data that limits the curse of dimensionality and deals with missing values. To handle these latter, we propose to use the Random Forest imputation's method.
Rania Mkhinini Gahar   +3 more
openaire   +2 more sources

Normalization and outlier removal in class center-based firefly algorithm for missing value imputation

open access: yesJournal of Big Data, 2021
A missing value is one of the factors that often cause incomplete data in almost all studies, even those that are well-designed and controlled. It can also decrease a study’s statistical power or result in inaccurate estimations and conclusions.
Heru Nugroho   +2 more
doaj   +1 more source

MIGHT: Statistical Methodology for Missing-Data Imputation in Food Composition Databases

open access: yesApplied Sciences, 2019
This paper addresses the problem of missing data in food composition databases (FCDBs). The missing data can be either for selected foods or for specific components only. Most often, the problem is solved by human experts subjectively borrowing data from
Gordana Ispirova   +3 more
doaj   +1 more source

A Comparative Study of Various Methods for Handling Missing Data in UNSODA

open access: yesAgriculture, 2021
UNSODA, a free international soil database, is very popular and has been used in many fields. However, missing soil property data have limited the utility of this dataset, especially for data-driven models. Here, three machine learning-based methods, i.e.
Yingpeng Fu, Hongjian Liao, Longlong Lv
doaj   +1 more source

Missing Value Imputation Methods for Electronic Health Records

open access: yesIEEE Access, 2023
Electronic health records (EHR) are patient-level information, e.g., laboratory tests and questionnaires, stored in electronic format. Compared to physical records, the EHR alternative allows patients to access their data easily and helps staff with ...
Konstantinos Psychogyios   +3 more
doaj   +1 more source

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