New games! PlayTrivia andBirthle.


Lotfi A. Zadeh

1921 - 2017

Photo of Lotfi A. Zadeh

Icon of person Lotfi A. Zadeh

Lotfi Aliasker Zadeh (; Azerbaijani: Lütfi Rəhim oğlu Ələsgərzadə; Persian: لطفی علی‌عسکرزاده; 4 February 1921 – 6 September 2017) was a mathematician, computer scientist, electrical engineer, artificial intelligence researcher, and professor of computer science at the University of California, Berkeley. Read more on Wikipedia

Since 2007, the English Wikipedia page of Lotfi A. Zadeh has received more than 1,067,393 page views. His biography is available in 37 different languages on Wikipedia (up from 34 in 2019). Lotfi A. Zadeh is the 5th most popular computer scientist (up from 9th in 2019), the 12th most popular biography from Azerbaijan (up from 14th in 2019) and the most popular Azerbaijani Computer Scientist.

Lotfi A. Zadeh is most famous for his theory of fuzzy sets. He believed that in order to fully understand a concept, it is necessary to take into account the degree to which the concept is true.

Memorability Metrics

  • 1.1M

    Page Views (PV)

  • 65.05

    Historical Popularity Index (HPI)

  • 37

    Languages Editions (L)

  • 4.47

    Effective Languages (L*)

  • 3.49

    Coefficient of Variation (CV)

Page views of Lotfi A. Zadehs by language


Among computer scientists, Lotfi A. Zadeh ranks 5 out of 201Before him are Alan Turing, Grace Hopper, Tim Berners-Lee, and Richard Stallman. After him are Dennis Ritchie, Donald Knuth, Edsger W. Dijkstra, Niklaus Wirth, George Dantzig, Linus Torvalds, and John McCarthy.

Most Popular Computer Scientists in Wikipedia

Go to all Rankings


Among people born in 1921, Lotfi A. Zadeh ranks 29Before him are Rosalyn Sussman Yalow, Aaron T. Beck, Deborah Kerr, Satyajit Ray, John Glenn, and Vasily Stalin. After him are Gianni Agnelli, Nancy Reagan, Kenneth Arrow, Patricia Highsmith, Kurt Knispel, and Jean, Grand Duke of Luxembourg. Among people deceased in 2017, Lotfi A. Zadeh ranks 26Before him are Glen Campbell, Ali Abdullah Saleh, Jerry Lewis, Hans Georg Dehmelt, Martin Landau, and Mário Soares. After him are George A. Romero, Nicolaas Bloembergen, Tzvetan Todorov, Kenneth Arrow, Akbar Hashemi Rafsanjani, and Roman Herzog.

Others Born in 1921

Go to all Rankings

Others Deceased in 2017

Go to all Rankings

In Azerbaijan

Among people born in Azerbaijan, Lotfi A. Zadeh ranks 12 out of 189Before him are Zecharia Sitchin (1920), Arghun (1250), Mstislav Rostropovich (1927), Garry Kasparov (1963), Imadaddin Nasimi (1369), and Nadezhda Alliluyeva (1901). After him are Abulfaz Elchibey (1938), Ivan Bagramyan (1897), Ayaz Mutallibov (1938), Uzeyir Hajibeyov (1885), Mammad Amin Rasulzadeh (1884), and Mirza Fatali Akhundov (1812).


Among computer scientists born in Azerbaijan, Lotfi A. Zadeh ranks 1