Before co-founding Vivisimo in 2000, Raul was on the Carnegie
Mellon computer science department faculty since 1991; he is now
an Adjunct Associate Professor there. His research was on new
methods and applications of knowledge discovery. He has published
nearly 50 research articles in natural, social and computer science
journals. He has been a principal investigator on six grants from
the National Science Foundation, has served on its advisory committee
for Social, Behavioral and Economic Sciences, and was an action
editor of the journal Machine Learning. He received a PhD in
computer science
at Carnegie Mellon, studying under Herbert A. Simon, and holds
engineering degrees from the University of Illinois.