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Christian F. Hempelmann, Ph.D.

Director of the OST Labmancat

Kiki is Associate Professor of Computational Linguistics in the Department of Literature & Languages. He received his Ph.D. in Linguistics from Purdue University in 2003 with a dissertation on the computational phonology of puns. He also holds degrees from Leibniz University in Hannover, Germany, and Youngstown State University in Ohio.

His research focuses on computational semantics and natural language processing for information security and assurance. He has worked as Director of Research and Development at RiverGlass, an enterprise search company, and as Chief Scientific Officer at, a consumer-level Internet search engine. In both positions he led Ph.D.-level teams in creating groundbreaking natural-language search systems based on the paradigm that is the main theoretical and application methodology for the OST, ontological semantic technology, with which he has worked since 2000.

His goal is to translate this experience into the academic realm in the format of the lab. He has been invited as a speaker, has been published widely in his fields of expertise, including numerous papers and a book, and continues to consult for research and development companies, including NTENT.