[3] Mattmann graduated from the University of Southern California (USC) in 2007 with a PhD in Computer Science studying with Dr. Nenad Medvidović and he went on to invent Apache Tika with Jérôme Charron.

Chris Mattmann's work on Tika and other projects was heavily influenced by open source both at NASA and within the academic community.

[7] IRDS includes diverse students in the areas of data science, information retrieval and informatics and the group exists within USC's Viterbi School of Engineering.

[8] The focus of the group is on cross disciplinary data and content analysis work applied to the science, business, engineering and information technology (IT) domains.

[10][11] More recently, Chris has been focused on Dark Web and automated data processing technologies and has been leading research teams working with DARPA and NASA JPL on the Memex project.