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|a 10.1109/TVCG.2024.3382760
|2 doi
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|a eng
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1 |
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|a Bernard, Jurgen
|e verfasserin
|4 aut
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|a IVESA - Visual Analysis of Time-Stamped Event Sequences
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|c 2024
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|a Date Revised 01.07.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Time-stamped event sequences (TSEQs) are time-oriented data without value information, shifting the focus of users to the exploration of temporal event occurrences. TSEQs exist in application domains, such as sleeping behavior, earthquake aftershocks, and stock market crashes. Domain experts face four challenges, for which they could use interactive and visual data analysis methods. First, TSEQs can be large with respect to both the number of sequences and events, often leading to millions of events. Second, domain experts need validated metrics and features to identify interesting patterns. Third, after identifying interesting patterns, domain experts contextualize the patterns to foster sensemaking. Finally, domain experts seek to reduce data complexity by data simplification and machine learning support. We present IVESA, a visual analytics approach for TSEQs. It supports the analysis of TSEQs at the granularities of sequences and events, supported with metrics and feature analysis tools. IVESA has multiple linked views that support overview, sort+filter, comparison, details-on-demand, and metadata relation-seeking tasks, as well as data simplification through feature analysis, interactive clustering, filtering, and motif detection and simplification. We evaluated IVESA with three case studies and a user study with six domain experts working with six different datasets and applications. Results demonstrate the usability and generalizability of IVESA across applications and cases that had up to 1,000,000 events
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Barth, Clara-Maria
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cuba, Eduard
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Meier, Andrea
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peiris, Yasara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shneiderman, Ben
|e verfasserin
|4 aut
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|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g PP(2024) vom: 08. Apr.
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|x 1941-0506
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|u http://dx.doi.org/10.1109/TVCG.2024.3382760
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