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Robert Duncan Luce (May 16, 1925 – August 11, 2012)〔(Renowned UCI scholar R. Duncan Luce dies at 87 ), UC Irvine School of Social Sciences, retrieved 2012-08-13.〕 was a renowned mathematician and social scientist, and one of the most preeminent figures in the field of mathematical psychology. At the end of his life, he held the position of Distinguished Research Professor of Cognitive Science at the University of California, Irvine.〔 〕 Luce received a Bachelor of Science degree in Aeronautical Engineering from the Massachusetts Institute of Technology in 1945, and PhD in Mathematics from the same university in 1950 under I. S. Cohen with thesis ''On Semigroups''. He began his professorial career at Columbia University in 1954, where he was an assistant professor in mathematical statistics and sociology. Following a lecturership at Harvard University from 1957 to 1959, he became a professor at the University of Pennsylvania in 1959, and was awarded the Benjamin Franklin Professorship of Psychology in 1968. After visiting the Institute for Advanced Study beginning in 1969, he joined the UC Irvine faculty in 1972, but returned to Harvard in 1976 as Alfred North Whitehead Professor of Psychology and then later as Victor S. Thomas Professor of Psychology. In 1988 Luce rejoined the UC Irvine faculty as Distinguished Professor of Cognitive Sciences and (from 1988 to 1998) director of UCI's Institute for Mathematical Behavioral Sciences.〔(Curriculum vitae )〕 Luce was elected to the National Academy of Sciences in 1972 for his work on fundamental measurement, utility theory, global psychophysics, and mathematical behavioral sciences. He received the 2003 National Medal of Science in behavioral and social science for his contributions to the field of mathematical psychology.〔(Decision Science Researcher Profile: Duncan Luce Awarded 2003 Medal of Science ), Decision Science News, 2005.〕 Contributions for which Luce is known include formulating Luce's choice axiom formalizing the principle that additional options should not affect the probability of selecting one item over another, defining semiorders, introducing graph-theoretic methods into the social sciences, and coining the term "clique" for a complete subgraph in graph theory.〔(A Lifetime of Calculating Choices ). Stephanie Bowen, The Social Science Journal, UC Irvine, 2004.〕〔(Duncan Luce as a Measurement Theorist ). Patrick Suppes, in ''Choice, Decision and Measurement'' (A. A. J. Marley, ed.), Lawrence Erlbaum Associates, 1997, pp. 103–109.〕 ==Books by Luce== * Paperback reprint, Dover, New York * * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「R. Duncan Luce」の詳細全文を読む スポンサード リンク
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