Results 21 to 30 of about 24,713,244 (334)

Advanced methods for missing values imputation based on similarity learning [PDF]

open access: yesPeerJ Computer Science, 2021
The real-world data analysis and processing using data mining techniques often are facing observations that contain missing values. The main challenge of mining datasets is the existence of missing values.
Khaled M. Fouad   +3 more
doaj   +2 more sources

A Pattern-Recognition-Based Ensemble Data Imputation Framework for Sensors from Building Energy Systems

open access: yesSensors, 2020
Building operation data are important for monitoring, analysis, modeling, and control of building energy systems. However, missing data is one of the major data quality issues, making data imputation techniques become increasingly important.
Liang Zhang
doaj   +1 more source

An efficient ensemble method for missing value imputation in microarray gene expression data

open access: yesBMC Bioinformatics, 2021
Background The genomics data analysis has been widely used to study disease genes and drug targets. However, the existence of missing values in genomics datasets poses a significant problem, which severely hinders the use of genomics data.
Xinshan Zhu   +5 more
doaj   +1 more source

Missing Traffic Data Imputation for Artificial Intelligence in Intelligent Transportation Systems: Review of Methods, Limitations, and Challenges

open access: yesIEEE Access, 2023
Missing data in Intelligent Transportation Systems (ITS) could lead to possible errors in the analyses of traffic data. Applying Artificial Intelligence (AI) in these circumstances can mitigate such problems.
Robin Kuok Cheong Chan   +2 more
semanticscholar   +1 more source

TIME SERIES IMPUTATION USING VAR-IM (CASE STUDY: WEATHER DATA IN METEOROLOGICAL STATION OF CITEKO)

open access: yesBarekeng, 2022
Univariate imputation methods are defined as imputation methods that only use the information of the target variable to estimate missing values.
Muhammad Edy Rizal   +2 more
doaj   +1 more source

Fractional Imputation Algorithm for Incomplete Data Based on Multi-Model Fusion [PDF]

open access: yesJisuanji gongcheng, 2023
Missing data imputation is an important step in data mining from incomplete datasets. Existing imputation algorithms cannot effectively utilize samples with high missing rates, which results in the equivalent processing of samples with different missing ...
Liangshan SHAO, Songze ZHAO
doaj   +1 more source

Prediction of concrete strengths enabled by missing data imputation and interpretable machine learning

open access: yesCement & Concrete Composites, 2022
Machine learning (ML)-based prediction of non-linear composition-strength relationship in concretes requires a large, complete, and consistent dataset. However, the availability of such datasets is limited as the datasets often suffer from incompleteness
Gideon A. Lyngdoh   +3 more
semanticscholar   +1 more source

DEGAIN: Generative-Adversarial-Network-Based Missing Data Imputation

open access: yesInformation, 2022
Insights and analysis are only as good as the available data. Data cleaning is one of the most important steps to create quality data decision making. Machine learning (ML) helps deal with data quickly, and to create error-free or limited-error datasets.
Reza Shahbazian, Irina Trubitsyna
doaj   +1 more source

In-Database Data Imputation [PDF]

open access: yesProceedings of the ACM on Management of Data
Missing data is a widespread problem in many domains, creating challenges in data analysis and decision making. Traditional techniques for dealing with missing data, such as excluding incomplete records or imputing simple estimates (e.g., mean), are computationally efficient but may introduce bias and disrupt variable relationships, leading to ...
Massimo Perini, Milos Nikolic 0001
openaire   +2 more sources

Missing Categorical Data Imputation and Individual Observation Level Imputation

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2014
Traditional missing data techniques of imputation schemes focus on prediction of the missing value based on other observed values. In the case of continuous missing data the imputation of missing values often focuses on regression models.
Pavel Zimmermann   +2 more
doaj   +1 more source

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