Dave grew up in Hudson, Iowa and went on to earn a B.S. in Computer Science from Iowa State University and an M.S. from Johns Hopkins University. He has also studied at UNI, MIT, Boston University, and the University of Arkansas.
He co-invented LNKnet (neural network pattern classification software, now public domain), holds multiple U.S. and European patents in information visualization, and conducted research at Xerox PARC and the University of Maryland's Human-Computer Interaction Lab.
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Research & Inventions
Information Visualization
Working with Dr. Stuart Card at Xerox PARC and Dr. Ben Shneiderman at the University of Maryland HCIL, Dave developed the Degree-of-Interest Tree browser (DOITree) — software for displaying large tree structures in a comprehensible way, presented at the Advanced Visual Interfaces conference in Trento, Italy in 2002.
Activities & Interests
Things Dave Does
Family History
Stories and records from several family lines spanning generations.
🎅 Santa Claus
Dave makes appearances as Santa Claus for events, families, and organizations in the Cedar Valley area.
Santa@davenation.comArt & Photography
Dave's Art Gallery
A collection of original artwork. Dave has been creating and collecting art throughout his life.
Travel Photos
Photos from Dave's travels around the world, capturing places and moments along the way.