Donald W. Marquardt (March 13, 1929, New York City – July 5, 1997,[1] New Castle, Delaware) was an American statistician, the rediscoverer of the Levenberg–Marquardt nonlinear least squares fitting algorithm.[2]
Marquardt was educated at Columbia University with bachelor's degree in 1950 in physics and mathematics and at the University of Delaware with master's degree in 1956 in mathematics and statistics.[3] Marquardt joined DuPont in 1953 and worked there for 39 years. He also founded and managed the DuPont Quality Management & Technology Center.[1] In 1963 he published his famous paper "algorithm for least-squares estimation of nonlinear problems" in SIAM journal. Marquardt developed his algorithm to solve fitting nonlinear chemical models to laboratory data.[2] In 1975 he was elected as a Fellow of the American Statistical Association.[4]
As manager of the DuPont Applied Statistics Group, he led development of the Product Quality Management methodology and computer systems that implemented the company's continuous improvement initiatives from the mid-1970s to the late 1990s.[5] He won the Shewhart Medal in 1986.
In 1991, he established his own company, Donald W. Marquardt and Associates, which provides consulting and training in quality management, quality assurance, ISO 9000 standards, applied statistics, strategic planning and organizational change.[1]
He died from a heart attack at the age of 68.[1]
^ abcdQuality Digest Magazine, August 1997
^ abPaul Davis (1993). Levenberg–Marquart Methods and Nonlinear Estimation Archived January 25, 2009, at the Wayback Machine, SIAM News, Vol. 26, Number 6, October 1993.
^"Bio/Description: Mr. Donald W. Marquardt". IT History Society. 21 December 2015.
^View/Search Fellows of the ASA Archived 2016-06-16 at the Wayback Machine, accessed 2016-08-20.
^Marquardt, Donald W.; Ulery, Dana L. (1991). Product Quality Management. Wilmington, DE: E.I. du Pont de Nemours, Quality Management & Technology Center. OCLC 29224881.
Donald W. Marquardt (March 13, 1929, New York City – July 5, 1997, New Castle, Delaware) was an American statistician, the rediscoverer of the Levenberg–Marquardt...
of venture capital firm August Capital DonaldMarquardt (1929–1997), American statistician Elizabeth Marquardt, author of Between Two Worlds: The Inner...
least squares fitting algorithm later improved by DonaldMarquardt, known as the Levenberg–Marquardt algorithm. Levenberg first published the algorithm...
Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who served as the 45th president of the United States...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
During and after his term as President of the United States, Donald Trump made tens of thousands of false or misleading claims. The Washington Post's fact-checkers...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
all dimensions greater than or equal to 5. 1962 – DonaldMarquardt proposes the Levenberg–Marquardt nonlinear least squares fitting algorithm. 1963 –...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
continues to expand". CBS News. July 17, 2023. Retrieved March 21, 2024. Marquardt, Alex; Murphy, Paul P. (August 18, 2020). "Fake texts and YouTube video...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
In 2006, Cerrone began training with Jon Jones, Rashad Evans, Nathan Marquardt, Keith Jardine, Georges St-Pierre, Leonard Garcia, Tom Watson and other...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...
Richard Loree Anderson (1983) I. Richard Savage (1984) John Neter (1985) DonaldMarquardt (1986) Barbara A. Bailar (1987) Robert V. Hogg (1988) Janet L. Norwood...