Towards Glyph-based visualizations for big data clustering.

Mandy Keck, Dietrich Kammer, Thomas Gründer, Thomas Thom, Martin Kleinsteuber, Alexander Maasch, Rainer Groh

Research output: Contribution to conferencePaperpeer-review

14 Citations (Scopus)

Abstract

Data Analysts have to deal with an ever-growing amount of data resources. One way to make sense of this data is to extract features and use clustering algorithms to group items according to a similarity measure. Algorithm developers are challenged when evaluating the performance of the algorithm since it is hard to identify features that influence the clustering. Moreover, many algorithms can be trained using a semi-supervised approach, where human users provide ground truth samples by manually grouping single items. Hence, visualization techniques are needed that help data analysts achieve their goal in evaluating Big data clustering algorithms. In this context, Multidimensional Scaling (MDS) has become a prominent visualization tool. In this paper, we propose a combination with glyphs that can provide a detailed view of specific features involved in MDS. In consequence, human users can understand, adjust, and ultimately improve clustering algorithms. We present a thorough glyph design, which is founded in a comprehensive survey of related work and report the results of a controlled experiments, where participants solved data analysis tasks with both glyphs and a traditional textual display of data values.

Original languageEnglish
Pages129-136
Number of pages8
DOIs
Publication statusPublished - 14 Aug 2017
Externally publishedYes
Event10th International Symposium on Visual Information Communication and Interaction - Bangkok, Thailand
Duration: 14 Aug 2017 → …

Conference

Conference10th International Symposium on Visual Information Communication and Interaction
Abbreviated titleVinci 2017
Country/TerritoryThailand
CityBangkok
Period14.08.2017 → …

Keywords

  • Big Data
  • Glyph-based Visualization Techniques
  • Multidimensional Scaling
  • Visual Cluster Analysis
  • information visualization
  • Glyphs
  • dimensionality reduction

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