To Explore What Isn't There - Glyph-based Visualization for Analysis of Missing Values

@article{Johansson2021ToEW,
  title={To Explore What Isn't There - Glyph-based Visualization for Analysis of Missing Values},
  author={Sara Johansson and Jimmy Johansson},
  journal={IEEE transactions on visualization and computer graphics},
  year={2021},
  volume={PP}
}
  • S. Johansson, J. Johansson
  • Published 24 November 2020
  • Computer Science
  • IEEE transactions on visualization and computer graphics
This paper contributes a novel visualization method, Missingness Glyph, for analysis and exploration of missing values in data. Missing values are a common challenge in most data generating domains and may cause a range of analysis issues. Missingness in data may indicate potential problems in data collection and pre-processing, or highlight important data characteristics. While the development and improvement of statistical methods for dealing with missing data is a research area in its own… 
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Where did my Lines go? Visualizing Missing Data in Parallel Coordinates
TLDR
Three missing value representation concepts to represent missing values in parallel coordinates are identified: removing line segments where values are missing, adding a separate, horizontal axis onto which missing values are projected, and using imputed values as a replacement for missing values.

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