Results 21 to 30 of about 161,037 (263)
RDIS: Random Drop Imputation With Self-Training for Incomplete Time Series Data
IEEE Access, 2023 Time-series data with missing values are a common occurrence in various fields, including healthcare, meteorology, and robotics. The process of imputation aims to fill in the missing values with valid values.
Tae-Min Choi, Ji-Su Kang, Jong-Hwan Kim
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Missing Data Imputation for Categorical Variables [PDF]
Statistika: Statistics and Economy Journal, 2022 Dealing with missing data is a crucial part of everyday data analysis. The IMIC algorithm is a missing data imputation method that can handle mixed numerical and categorical datasets. However, the categorical data are crucial for this work.
Jaroslav Horníček, Hana Řezanková
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Algorithms, 2022 Missing observations in time series will distort the data characteristics, change the dataset expectations, high-order distances, and other statistics, and increase the difficulty of data analysis.
Yufan Qian +4 more
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Missing Value Imputation Method for Multiclass Matrix Data Based on Closed Itemset
Entropy, 2022 Handling missing values in matrix data is an important step in data analysis. To date, many methods to estimate missing values based on data pattern similarity have been proposed. Most previously proposed methods perform missing value imputation based on
Mayu Tada +2 more
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Kernel weighted least square approach for imputing missing values of metabolomics data
Scientific Reports, 2021 Mass spectrometry is a modern and sophisticated high-throughput analytical technique that enables large-scale metabolomic analyses. It yields a high-dimensional large-scale matrix (samples × metabolites) of quantified data that often contain missing ...
Nishith Kumar +2 more
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Traffic Missing Data Imputation: A Selective Overview of Temporal Theories and Algorithms
Mathematics, 2022 A great challenge for intelligent transportation systems (ITS) is missing traffic data. Traffic data are input from various transportation applications. In the past few decades, several methods for traffic temporal data imputation have been proposed.
Tuo Sun +4 more
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The Impact of Missing Data and Imputation Methods on the Analysis of 24-Hour Activity Patterns
Clocks & Sleep, 2022 The purpose of this study is to characterize the impact of the timing and duration of missing actigraphy data on interdaily stability (IS) and intradaily variability (IV) calculation.
Lara Weed +3 more
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Dealing with Missing Responses in Cognitive Diagnostic Modeling
Psych, 2022 Missing data are a common problem in educational assessment settings. In the implementation of cognitive diagnostic models (CDMs), the presence and/or inappropriate treatment of missingness may yield biased parameter estimates and diagnostic information.
Shenghai Dai, Dubravka Svetina Valdivia
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Missing Categorical Data Imputation and Individual Observation Level Imputation
Acta 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
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A Noise-Aware Multiple Imputation Algorithm for Missing Data
Mathematics, 2022 Missing data is a common and inevitable phenomenon. In practical applications, the datasets usually contain noises for various reasons. Most of the existing missing data imputing algorithms are affected by noises which reduce the accuracy of the ...
Fangfang Li, Hui Sun, Yu Gu, Ge Yu
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