[2] He spent two years doing postdoctoral research under a Fulbright Foundation fellowship with Sarit Kraus at Bar-Ilan University in Ramat Gan, Israel.
Together with Moshe Koppel and others, he has shown how statistical analysis of word usage can determine an author's age, sex, native language, and personality type with high accuracy in English-language texts.
[10][11][12] His work also has shown how textual features indicating differences between male and female authorship are consistent between languages and across time.
Their work showed how using systemic functional features in computational stylistic analysis provides evidence for multiple scientific methodologies of the sorts posited previously by philosophers of science.
He has pointed out how linguistic attribution techniques can be used to good effect on natural language texts that arise in different attack scenarios, and has provided analyses for high-profile cases such as the Sony Pictures hack,[19][20] the Democratic National Committee cyber attacks,[21] and the Shadow Brokers NSA leak.