Ivan Sag

Professor, Academic

1949 – 2013


Who was Ivan Sag?

Ivan Andrew Sag was an American linguist and cognitive scientist.

Born in Alliance, Ohio on November 9, 1949, he received a PhD from MIT in 1976, writing his dissertation on ellipsis. He received an MA from the University of Pennsylvania, where he studied comparative Indo-European languages, Sanskrit, and sociolinguistics, and a BA from the University of Rochester.

Sag was the Sadie Dernham Patek Professor in Humanities, Professor of Linguistics, and Director of the Symbolic Systems Program at Stanford University. A fellow of the American Academy of Arts and Sciences and the Linguistic Society of America, in 2005 he received the LSA's Fromkin Prize for distinguished contributions to the field of linguistics.

Sag made notable contributions to the fields of syntax, semantics, pragmatics, and language processing.

His early work was as a member of the research teams that invented and developed HPSG as well as generalized phrase structure grammar, HPSG's immediate intellectual predecessor. More recently, he worked on Sign-Based Construction Grammar, which blended HPSG with ideas from Berkeley Construction Grammar. In general, his research late in life primarily concerned constraint-based, lexicalist models of grammar, and their relation to theories of language processing.

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Nov 9, 1949
United States of America
Also known as
  • Ivan A. Sag
  • United States of America
  • Doctorate, Massachusetts Institute of Technology
    (1973 - 1976)
  • Master of Arts, University of Pennsylvania
    (1971 - 1973)
  • Bachelor of Arts, University of Rochester
    (1967 - 1971)
  • Stanford University
    (2008 - )
  • Professor of Linguistics, Stanford University
    (1988 - )
  • Affiliated Faculty, Stanford Symbolic Systems Program
    (1986 - )
  • Associate Professor of Linguistics, Stanford University
    (1984 - 1988)
  • Assistant Professor of Linguistics, Stanford University
    (1979 - 1984)
  • Assistant Professor of Linguistics, University of Pennsylvania
    (1977 - 1979)
  • Stanford University
    ( - 2007)
  • Harvard University
    ( - 2005)
  • Michigan State University
    ( - 2003)
  • Instructor, Thirteenth European Summer School in Logic, Language and Information, University of Trento
    ( - 2002)
Sep 10, 2013
Menlo Park

on July 23, 2013


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