AH Schwartz analyzed 700 million words, phrases, and topic instances collected from the Facebook messages of 75,000 volunteers, who also took standard personality tests pubmed.ncbi.nlm.nih.gov/25365036/
Schwartz received a PhD in Computer Science via U. of Central Florida, 2011, researching acquiring lexical semantic knowledge from WWW then joined U. of Pennsylvania as Postdoctoral Research Fellow and later Visiting Assistant Professor in Computer & Information Science.