Lotfali Zadeh

Updated: 09/15/2017 by Computer Hope

Lotfali ZadehName: Lotfali Askar Zadeh

Born: February 4, 1921 in Baku, Azerbaijan SSR

Computer related contributions

  • Mathematician, electrical engineer, computer scientist, Artificial Intelligence researcher and professor emeritus of computer science at the University of California, Berkeley.
  • Known as the Founder of fuzzy mathematics and his fuzzy set theory, and fuzzy logic.
  • Published his seminal work on fuzzy sets in 1965, in which he detailed the mathematics of fuzzy set theory. In 1973 he proposed his theory of fuzzy logic.


  • Linear System Theory: The State Space Approach (2008)
  • Forging New Frontiers: Fuzzy Pioneers II (2007)
  • Computing with Words in Information/Intelligent Systems 1: Foundations (1999)

Honors and awards

  • Induction into the IEEE Intelligent Systems' AI's Hall of Fame (2011)
  • Benjamin Franklin Medal in Electrical Engineering from The Franklin Institute (2009)
  • IEEE Medal of Honor (1995)
  • IEEE Richard W. Hamming Medal (1992)