Published on in Vol 19, No 11 (2017): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8217, first published
.
1 Institute for Human and Machine Cognition, Pensacola, FL, United States
2 Palo Alto Research Center, Palo Alto, CA, United States
3 University of California, Santa Cruz, Santa Cruz, CA, United States