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Shawn Murphy

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Shawn Murphy

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Publications by Shawn Murphy (bibliography)

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Wang, Taowei David, Plaisant, Catherine, Quinn, Alexander J., Stanchak, Roman, Murphy, Shawn and Shneiderman, Ben (2008): Aligning temporal data by sentinel events: discovering patterns in electronic health records. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 457-466. Available online

“Electronic Health Records (EHRs) and other temporal databases contain hidden patterns that reveal important cause-and-effect phenomena. Finding these patterns is a challenge when using traditional query languages and tabular displays. We present an interactive visual tool that complements query formulation by providing operations to align, rank and filter the results, and to visualize estimates of the intervals of validity of the data. Display of patient histories aligned on sentinel events (such as a first heart attack) enables users to spot precursor, co-occurring, and aftereffect events. A controlled study demonstrates the benefits of providing alignment (with a 61% speed improvement for complex tasks). A qualitative study and interviews with medical professionals demonstrates that the interface can be learned quickly and seems to address their needs.”

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