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Research directions in data wrangling: Visualizations and transformations for usable and credible data

Authors
  • Kandel, Sean
  • Heer, Jeffrey
  • Plaisant, Catherine
  • Kennedy, Jessie
  • Ham, Frank van
  • Riche, Nathalie Henry
  • Weaver, Chris
  • Lee, Bongshin
  • Brodbeck, Dominique
  • Buono, Paolo
Publication Date
Dec 31, 2011
Identifiers
DOI: 10.1177/1473871611415994
OAI: oai:[email protected]:202874
Source
[email protected]
Keywords
License
Unknown
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Abstract

In spite of advances in technologies for working with data, analysts still spend an inordinate amount of time diagnosing data quality issues and manipulating data into a usable form. This process of ‘data wrangling’ often constitutes the most tedious and time-consuming aspect of analysis. Though data cleaning and integration arelongstanding issues in the database community, relatively little research has explored how interactive visualization can advance the state of the art. In this article, we review the challenges and opportunities associated with addressing data quality issues. We argue that analysts might more effectively wrangle data through new interactive systems that integrate data verification, transformation, and visualization. We identify a number of outstanding research questions, including how appropriate visual encodings can facilitate apprehension of missing data, discrepant values, and uncertainty; how interactive visualizations might facilitate data transform specification; and how recorded provenance and social interaction might enable wider reuse, verification, and modification of data transformations.

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