I algorithmically design keyboard layouts optimized for different languages (early example: engram-layouts.xyz). I currently use a Bayesian preference learning model to convert crowdsourced typing preference data into estimates of typing comfort.
My wife and I created the first comprehensive photodocumentation of the Buddhist, Hindu, and Jain cave temples of Ellora in India, with a database of over 7,000 photographs referenced against ground plans (elloracaves.org). This work was partly funded by grants from the Mellon Foundation and the Indian government. Mapin and Columbia University Press will publish our book by the end of 2025.
I built the database and website infovis.info back in 2008 as part of work on graphical taxonomies. You can still search for information graphics from a curated set of over 1.000 examples, including networks, cyberspaces, data visualizations, cartograms, etc.
A Klein, KA Klein. Birds on Chairs (12 illustrated short stories). Chicken in a Snowstorm Press (2020).
A Klein. The Insect's Final Dream. Chicken in a Snowstorm Press (2017). 2018 Exhibits: Kohler Art Library, Madison, WI; Athens Art Exhibition, Athens, GA.
A Klein, KA Klein. Hugo Bristol and the Night Sky. Chicken in a Snowstorm Press (2013).
A Klein. CTHRU: A composition-based taxonomy of information graphics. Medium (2016).
A Klein, W Bevington. "Information visualization" entry in: Erlhoff Michael, Marshall Tim, eds. Design Dictionary: Perspectives on Design Terminology. Basel, Boston, Berlin: Birkhauser Verlag (2008).
A Keshavan, A Klein, B Cipollini. Interactive online brain shape visualization (2015 Brainhack event) Research Ideas and Outcomes 3: e12358 (2017). doi:10.3897/rio.3.e12358
A Klein, A Worth, J Tourville, B Landman, T Dal Canton, SS Ghosh, D Shattuck. An interactive tool for constructing optimal brain colormaps. 40th Annual Meeting for the Society for Neuroscience (2010).
A Klein. Data-visual relationships to subject performance and eye movements (2007 NSF proposal). Research Ideas and Outcomes. 2: e8814 (2016). doi:10.3897/rio.2.e8814
Since the time I built a basement optics lab with a friend in high school to create holograms, I have been making display holograms and conducting research on 3-dimensional display technologies, at the University of Southern California, the University of Michigan, and at the MIT Media Laboratory. For my thesis work at MIT, I created the deepest dispersion-controlled viewing stations, and the thinnest edge-lit holograms, both of which use a hologram to present specially controlled light sources (pre-distorted wavefronts or pre-dispersed light) to a second, display hologram for sharper and deeper images. Since then, I have formulated a general raytracing equation for holograms. Holography has influenced my later research in surprising ways.
A Klein. Relating vector ray-tracing equations for holograms of arbitrary shape and thickness. Journal of the Optical Society of America A. 25(4): 979-983 (2008).
MA Klug, A Klein, W Plesniak, A Kropp, B Chen. Optics for full-parallax holographic stereograms. Proc. SPIE. 3011 (78) "Practical Holography XI" (1997). doi:10.1117/12.271340