Lloyd Richard Welch (born September 28, 1927) is an American information theorist and applied mathematician, and coinventor of the Baum–Welch algorithm and the Berlekamp–Welch algorithm, also known as the Welch–Berlekamp algorithm.
Welch received his B.S. in mathematics from the University of Illinois, 1951, and Ph.D. in mathematics from the California Institute of Technology, 1958, under advisor Frederic Bohnenblust. He worked at the Jet Propulsion Laboratory 1956–1959, Institute for Defense Analyses, 1959–1965, and University of Southern California, 1965–1999. He is a member of the National Academy of Engineering, IEEE Fellow, and received the 2003 Claude E. Shannon Award.
YouTube Encyclopedic

1/3Views:2 90724 5269 231

History of FFT with Cooley and Tukey

A305/12: Adolf Loos

Spring 2019 PhD Ceremony
Transcription
References
 University of Southern California faculty web page
 National Academy of Engineering
 Caltech thesis
 AMS genealogy
 Lloyd R. Welch at the Mathematics Genealogy Project