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- Baeuerle, A.Ulm Univ, Germany (author)
Where did my Lines go? Visualizing Missing Data in Parallel Coordinates
- Article/chapterEnglish2022
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- 2022-07-29
- Wiley,2022
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- LIBRIS-ID:oai:DiVA.org:liu-188784
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-188784URI
- https://doi.org/10.1111/cgf.14536DOI
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- Language:English
- Summary in:English
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- Funding Agencies|Wallenberg Autonomous Systems and Software Program (WASP)
- We evaluate visualization concepts to represent missing values in parallel coordinates. We focus on the trade-off between the ability to perceive missing values and the concepts impact on common tasks. For this purpose, we identified three missing value representation concepts: 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. For the missing values axis and imputed values concepts, we additionally add downplay and highlight variations. We performed a crowd-sourced, quantitative user study with 732 participants comparing the concepts and their variations using five real-world datasets. Based on our findings, we provide suggestions regarding which visual encoding to employ depending on the task at focus.
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- van Onzenoodt, C.Ulm Univ, Germany (author)
- der Kinderen, S.Ulm Univ, Germany (author)
- Johansson Westberg, JimmyLinköpings universitet,Medie- och Informationsteknik,Tekniska fakulteten(Swepub:liu)jimjo94 (author)
- Jönsson, DanielLinköpings universitet,Medie- och Informationsteknik,Tekniska fakulteten,Ulm Univ, Germany(Swepub:liu)danjo37 (author)
- Ropinski, T.Ulm Univ, Germany (author)
- Ulm Univ, GermanyMedie- och Informationsteknik (creator_code:org_t)
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- In:Computer graphics forum (Print): Wiley41:3, s. 235-2460167-70551467-8659
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