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A Preliminary Study on Cleaning up Erroneous Data and Filling in Missing Values in A Medical Record
Er-Wei Bai1, Hans Johnson, Weiyu Xu
1Department of Electrical and Computer Engineering, University of Iowa, Iowa City, Iowa 52242, er-wei-bai@uiowa.edu.
Abstract:
This study investigates various possible approaches in dealing with missing or erroneous data sets. Cleaning up erroneous values and filling in missing values in a meaningful way play a critical role for the consequent data analysis and decision making. What makes a meaningful way depends on available prior information. In this preliminary study, a number of possible approaches are proposed and tested on an actual Huntington disease data, depending on the assumptions.
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