Results 11 to 20 of about 179,516 (314)

Methods to Handle Incomplete Data

open access: yesMAMC Journal of Medical Sciences, 2020
Context: The major question for data analysis is determining the appropriate analytic approach in the presence of incomplete observations. The most common solution to handle missing data in a data set is imputation, where missing values are estimated and
Vinny Johny   +2 more
doaj   +1 more source

IGANI: Iterative Generative Adversarial Networks for Imputation With Application to Traffic Data

open access: yesIEEE Access, 2021
Increasing use of sensor data in intelligent transportation systems calls for accurate imputation algorithms that can enable reliable traffic management in the occasional absence of data.
Amir Kazemi, Hadi Meidani
doaj   +1 more source

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

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

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

RIIM:Real-Time Imputation Based on Individual Models [PDF]

open access: yesJisuanji kexue, 2022
With the enrichment of data sources,data can be obtained easily but with low quality,resulting that the MVs are ubi-quitous and hard to avoid.Consequently,MV imputation has become one of the classical problems in the field of data quality mana-gement ...
LI Xia, MA Qian, BAI Mei, WANG Xi-te, LI Guan-yu, NING Bo
doaj   +1 more source

Nonparametric Imputation by Data Depth [PDF]

open access: yesJournal of the American Statistical Association, 2019
We present single imputation method for missing values which borrows the idea of data depth---a measure of centrality defined for an arbitrary point of a space with respect to a probability distribution or data cloud. This consists in iterative maximization of the depth of each observation with missing values, and can be employed with any properly ...
Mozharovskyi, Pavlo   +2 more
openaire   +4 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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