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In addition, distribution of events over time can be shown. Groups of patients can be created via filtering. Distribution of groups can be compared. All these features let investigators visualize and interact with the data, explore potentially interesting temporal relationships, formulate hypotheses, and hopefully discover new findings.

History and Lifelines2

i2b2's TimeAlign plugin originates from the Lifelines2 project in the Human-computer Interaction Lab in the University of Maryland at College Park. Lifelines2 was part of the doctoral dissertation from by Taowei David Wang, under the supervision of Ben Shneiderman and Catherine Plaisant. Taowei has since graduated and is now part of the broader i2b2 team, creating other plugins for the i2b2 platform.

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Selected Publications for Lifelines2

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• Taowei David Wang, Amol Deshpande, and Ben Shneiderman, A Temporal Pattern Search Algorithm for Personal History Event Visualization, IEEE Transactions on Knowledge and Data Engineering, 24(5), 799-812, 2012.
• Taowei David Wang, Krist Wongsuphasawat, Catherine Plaisant and Ben Shneiderman. Extracting Insights from Electronic Health Records: Case Studies, a Visual Analytics Process Model, and Design Recommendations. Journal of Medical Systems, Volume 35, Number 5 (2011), 1135-1152, DOI: 10.1007/s10916-011-9718-x
• Taowei David Wang, Catherine Plaisant, Ben Shneiderman, Neil Spring, David Roseman, Greg Marchand, Vikramjit Mukherjee, and Mark Smith. Temporal Summaries: Supporting Temporal Categorical Searching, Aggregation and Comparison, IEEE Transactions on Visualization and Computer Graphics, 15(6), 1049-1056, November/December, 2009.
• Taowei David Wang, Catherine Plaisant, Alex Quinn, Roman Stanchak, Ben Shneiderman, and Shawn Murphy. Aligning Temporal Data by Sentinel Events: Discovering Patterns in Electronic Health Records, Proceedings of the Twenty-sixth Annual SIGCHI Conference on Human Factors in Computing Systems (CHI '08), 457-466, 2008.

Visit Lifelines2 for more papers and other related projects.

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