Professional Appointments

1976-1977

Assistant computer performance analyst, Standard Oil Company of California, San Francisco, CA (summers).

1977-1980

Research and teaching assistant, Stanford University.

1979

Teaching fellow, Stanford University.

1980-1985

Assistant professor of computer science, Brown University.

1985-1988

Associate professor of computer science (with tenure), Brown University.

1986

Member, Mathematical Sciences Research Institute, Berkeley, CA.

1986-1987

Visiting professor, Ecole Normale Supérieure, Paris, France.

1986-1987

Directeur scientifique, Institut National de Recherche en Informatique et en Automatique (INRIA), Rocquencourt, France.

1987

Lecturer, 2nd Asian School on Computer Science, Bangkok, Thailand.

1988

Visiting professor (short-term), Ecole Normale Supérieure, Paris, France.

1988-1993

Professor of computer science, Brown University.

1989

Visiting professor (short-term), Ecole Normale Supérieure, Paris, France.

1989-2000

Associate member, Center of Excellence in Space Data and Information Sciences (CESDIS).

1990-2006

Visiting professor (short-term) and/or adjunct professor, Tulane University.

1993

Professor of computer science, Duke University.

1993-2001

Chair of Department of Computer Science, Duke University.

1993-2002

Gilbert, Louis, and Edward Lehrman Professor of Computer Science (distinguished professorship), Duke University.

1993-1999

Adjunct professor of computer science, Brown University.

1995-2002

Founding member of Center for Geometric Computing, Brown University.

1997-2002

Founding member and co-director of Center for Geometric and Biological Computing (formerly Center for Geometric Computing), Duke University.

1998

Visiting professor (short-term), University of Aarhus, Århus, Denmark.

1998-1999

Professeur invité, Institut National de Recherche en Informatique et en Automatique (INRIA), Sophia Antipolis, France.

2002-present

Adjunct professor of computer science, Duke University.

2002-2008

Frederick L. Hovde Dean of the College of Science and Professor of Computer Science, Purdue University.

2008-present

Adjunct professor of computer science, Purdue University.

2008-2009

Provost and executive vice president for academics, Texas A&M University.

2008-present

Professor of computer science and engineering, Texas A&M University.