Andrew Yao

Andrew Chi-Chih Yao
Andrew Chi-Chih Yao
姚期智
Born	December 24, 1946 (age 77); Shanghai, China
Citizenship	Republic of China (1946–2015); United States (?–2015); People's Republic of China (2015–present);
Alma mater	National Taiwan University (BS); Harvard University (MA, PhD); University of Illinois at Urbana–Champaign (PhD)
Known for	Yao's Principle
Spouse	Frances Yao
Awards	Pólya Prize (SIAM) (1987); Knuth Prize (1996); Turing Award (2000); Kyoto Prize (2021)
	Scientific career
Fields	Computer science
Institutions	Stanford University; University of California, Berkeley; Princeton University; Tsinghua University; Chinese University of Hong Kong
Chinese name
Chinese	姚期智
Hanyu Pinyin
Transcriptions
Standard Mandarin
Hanyu Pinyin	Yáo Qīzhì
Wade–Giles	Yao2 Ch'i1chih4

Andrew Chi-Chih Yao (Chinese: 姚期智; pinyin: Yáo Qīzhì; born December 24, 1946) is a Chinese computer scientist and computational theorist. He is currently a professor and the dean of Institute for Interdisciplinary Information Sciences (IIIS) at Tsinghua University. Yao used the minimax theorem to prove what is now known as Yao's Principle.

Yao was a naturalized U.S. citizen, and worked for many years in the U.S. In 2015, together with Yang Chen-Ning, he renounced his U.S. citizenship and became an academician of the Chinese Academy of Sciences.^[1]^[2]^[3]^[4]

^ "Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G". Federal Register. 2015-10-27. Retrieved 22 February 2017.
^ "杨振宁、姚期智正式转为中国科学院院士". Xinhua News.
^ "Scientists drop U.S. citizenship", Science, 355 (6328): 891, March 3, 2017, doi:10.1126/science.355.6328.890, PMID 28254889
^ McLaughlin, Kathleen (24 February 2017). "Two top Chinese-American scientists have dropped their U.S. citizenship". Science. doi:10.1126/science.aal0823. CAS released a statement confirming the news but offered no further explanation as to why the two had given up their U.S. citizenship.

[1] "Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G". Federal Register. 2015-10-27. Retrieved 22 February 2017.

[2] "杨振宁、姚期智正式转为中国科学院院士". Xinhua News.

[3] "Scientists drop U.S. citizenship", Science, 355 (6328): 891, March 3, 2017, doi:10.1126/science.355.6328.890, PMID 28254889

[4] McLaughlin, Kathleen (24 February 2017). "Two top Chinese-American scientists have dropped their U.S. citizenship". Science. doi:10.1126/science.aal0823. CAS released a statement confirming the news but offered no further explanation as to why the two had given up their U.S. citizenship.

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