1921 - 2017
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.
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Historical Popularity Index (HPI)
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Effective Languages (L*)
Coefficient of Variation (CV)
Among computer scientists, Lotfi A. Zadeh ranks 5 out of 201. Before 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.
1912 - 1954
HPI: 83.83
Rank: 1
1906 - 1992
HPI: 73.92
Rank: 2
1955 - Present
HPI: 68.25
Rank: 3
1953 - Present
HPI: 66.16
Rank: 4
1921 - 2017
HPI: 65.05
Rank: 5
1941 - 2011
HPI: 64.90
Rank: 6
1938 - Present
HPI: 64.42
Rank: 7
1930 - 2002
HPI: 64.21
Rank: 8
1934 - Present
HPI: 62.85
Rank: 9
1914 - 2005
HPI: 62.22
Rank: 10
1969 - Present
HPI: 62.11
Rank: 11
1927 - 2011
HPI: 61.89
Rank: 12
Among people born in 1921, Lotfi A. Zadeh ranks 29. Before 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 26. Before 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.
1921 - 2011
HPI: 66.22
Rank: 23
1921 - 2021
HPI: 66.06
Rank: 24
1921 - 2007
HPI: 65.73
Rank: 25
1921 - 1992
HPI: 65.52
Rank: 26
1921 - 2016
HPI: 65.44
Rank: 27
1921 - 1962
HPI: 65.40
Rank: 28
1921 - 2017
HPI: 65.05
Rank: 29
1921 - 2003
HPI: 65.05
Rank: 30
1921 - 2016
HPI: 64.71
Rank: 31
1921 - 2017
HPI: 64.58
Rank: 32
1921 - 1995
HPI: 64.19
Rank: 33
1921 - 1945
HPI: 63.91
Rank: 34
1921 - 2019
HPI: 63.90
Rank: 35
1936 - 2017
HPI: 66.62
Rank: 20
1947 - 2017
HPI: 66.07
Rank: 21
1926 - 2017
HPI: 65.94
Rank: 22
1922 - 2017
HPI: 65.93
Rank: 23
1928 - 2017
HPI: 65.72
Rank: 24
1924 - 2017
HPI: 65.09
Rank: 25
1921 - 2017
HPI: 65.05
Rank: 26
1940 - 2017
HPI: 64.89
Rank: 27
1920 - 2017
HPI: 64.81
Rank: 28
1939 - 2017
HPI: 64.71
Rank: 29
1921 - 2017
HPI: 64.58
Rank: 30
1934 - 2017
HPI: 64.46
Rank: 31
1934 - 2017
HPI: 64.39
Rank: 32
Among people born in Azerbaijan, Lotfi A. Zadeh ranks 12 out of 189. Before 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).
1920 - 2010
HPI: 67.59
Rank: 6
1250 - 1291
HPI: 67.45
Rank: 7
1927 - 2007
HPI: 67.24
Rank: 8
1963 - Present
HPI: 67.14
Rank: 9
1369 - 1417
HPI: 66.59
Rank: 10
1901 - 1932
HPI: 66.26
Rank: 11
1921 - 2017
HPI: 65.05
Rank: 12
1938 - 2000
HPI: 65.02
Rank: 13
1897 - 1982
HPI: 64.53
Rank: 14
1938 - 2022
HPI: 61.87
Rank: 15
1885 - 1948
HPI: 61.56
Rank: 16
1884 - 1955
HPI: 61.45
Rank: 17
1812 - 1878
HPI: 61.42
Rank: 18
Among computer scientists born in Azerbaijan, Lotfi A. Zadeh ranks 1.