Automated classification of congressional legislation. - Stephen Purpura; Dustin Hillard (DG.O, 2006)

A study in rule-specific issue categorization for e-rulemaking. - Claire Cardie; Cynthia Farina; Adil Aijaz; Matt Rawding; Stephen Purpura (DG.O, 2008)

Active learning for e-rulemaking: public comment categorization. - Stephen Purpura; Claire Cardie; Jesse Simons (DG.O, 2008)

The U.S. Policy Agenda Legislation Corpus Volume 1 - a Language Resource from 1947 - 1998. - Stephen Purpura; John Wilkerson; Dustin Hillard (LREC, 2008)

Fit4life: the design of a persuasive technology promoting healthy behavior and ideal weight. - Stephen Purpura; Victoria Schwanda; Kaiton Williams; William Stubler; Phoebe Sengers (CHI, 2011)

Statistically adaptive learning for a general class of cost functions (SA L-BFGS) - Stephen Purpura; Dustin Hillard; Mark Hubenthal; Jim Walsh; Scott Golder; Scott Smith (CoRR, 2012)