Faculty Directory (A-Z)

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Nizar Y. Habash

Research Scientist

Nizar Habash is a research scientist at the Center for Computational Learning Systems in Columbia University, where he has worked since 2004. He received a B.S. in Computer Engineering and a B.A. in Linguistics and Languages from Old Dominion University in 1997. He received his Ph.D. in 2003 from the Computer Science Department, University of Maryland College Park. In 2005, he co-founded the Columbia Arabic Dialect...

Lauren Hannah

Assistant Professor

I am an Assistant Professor in the Department of Statistics at Columbia University. I completed a postdoc in Statistical Science at Duke University with David Dunson, and obtained a Ph.D. in Operations Research and Financial Engineering from Princeton University with advisors Warren Powell and David Blei. I also have an A.B. in Classics, again from Princeton University.

Mark Hansen


Mark Hansen joined Columbia Journalism School in July of 2012, after a decade of shuttling between the west and east coasts. In Los Angeles, he held appointments in the Department of Statistics, the Department of Design Media Arts and the Department of Electrical Engineering at UCLA -- literally forming a triangulation of data, art and technology -- and was a Co-PI for the Center for Embedded Networked Sensing, an...

Martin Haugh


Martin Haugh originally joined the Industrial Engineering and Operations Research Department in January 2002 after completing his PhD in Operations Research at MIT. He was a faculty member in the IEOR department until June 2005 and during this time his teaching and research focused on financial engineering. Between 2005 and 2009 he worked as a quant in the hedge fund industry in New York and London. He then returned...

Julia Bell Hirschberg


Julia Hirschberg is a professor of computer science at Columbia University and chair of the Department. She does research in prosody, spoken dialogue systems, and emotional and deceptive speech. She received her PhD in Computer Science from the University of Pennsylvania in 1985. She worked at Bell Laboratories and AT&T Laboratories -- Research from 1985-2003 as a Member of Technical Staff and as a Department...

George Hripcsak

George Hripcsak

Vivian Beaumont Allen Professor and Chair

George Hripcsak is Vivian Beaumont Allen Professor, chair of Columbia’s Department of Biomedical Informatics, and director of medical informatics services for New York-Presbyterian Hospital. Hripcsak is a board certified internist with degrees in chemistry, medicine, and biostatistics. He led the effort to create the Arden Syntax, a language for representing health knowledge that has become a national standard. His...

Daniel J. Hsu

Assistant Professor

Daniel J. Hsu is an assistant professor in the Department of Computer Science at Columbia University. Previously, he was a postdoc at Microsoft Research New England from 2011 to 2013; before that, he was a postdoc with the Department of Statistics at Rutgers University and the Department of Statistics at the University of Pennsylvania from 2010 to 2011, supervised by Tong Zhang and Sham M. Kakade. He received his Ph...

Robert Stanley Hum, MD FRCPC

Assistant Professor of Pediatrics

In addition to being a full-time pediatric intensivist, Dr. Hum's research interest primarily focuses on the use of informatics and technology in the medical education and in the treatment and diagnosis of diseases in pediatric critical care medicine. He is the Director of Pediatric Intensive Care Unit (PICU) Resident Education and the 4th Year Medical Student PICU SubInternship Coordinator. In addition, he...

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