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- W1498291970 abstract "Increasing the awareness of how missing data affects software predictive accuracy has led to increasing numbers of missing data techniques (MDTs). This paper investigates the robustness and accuracy of eight popular techniques for tolerating incomplete training and test data using tree-based models. MDTs were compared by artificially simulating different proportions, patterns, and mechanisms of missing data. A 4-way repeated measures design was employed to analyze the data. The simulation results suggest important differences. Listwise deletion is substantially inferior while multiple imputation (MI) represents a superior approach to handling missing data. Decision tree single imputation and surrogate variables splitting are more severely impacted by missing values distributed among all attributes. MI should be used if the data contain many missing values. If few values are missing, any of the MDTs might be considered. Choice of technique should be guided by pattern and mechanisms of missing data." @default.
- W1498291970 created "2016-06-24" @default.
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- W1498291970 date "2005-12-10" @default.
- W1498291970 modified "2023-09-25" @default.
- W1498291970 title "Comparison of various methods for handling incomplete data in software engineering databases" @default.
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- W1498291970 doi "https://doi.org/10.1109/isese.2005.1541819" @default.
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