Lloyd R. Welch

Lloyd Richard Welch is a noted American information theorist, and co-inventor of the Baum–Welch algorithm and the Berlekamp–Welch algorithm, also known as the Welch–Berlekamp algorithm. He is an applied mathematician and a descendant of Carl Gauss.

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.

References

Claude E. Shannon Award

1972–1989	1972 Claude E. Shannon 1973 1974 David S. Slepian 1975 1976 Robert M. Fano 1977 Peter Elias 1978 Mark Semenovich Pinsker 1979 Jacob Wolfowitz 1980 1981 W. Wesley Peterson 1982 Irving S. Reed 1983 Robert G. Gallager 1984 1985 Solomon W. Golomb 1986 William Lucas Root 1987 1988 James Massey 1989

1990–1999	1990 Thomas M. Cover 1991 Andrew Viterbi 1992 1993 Elwyn Berlekamp 1994 Aaron D. Wyner 1995 George David Forney 1996 Imre Csiszár 1997 Jacob Ziv 1998 Neil Sloane 1999 Tadao Kasami

2000–2009	2000 Thomas Kailath 2001 Jack Keil Wolf 2002 Toby Berger 2003 Lloyd R. Welch 2004 Robert McEliece 2005 Richard Blahut 2006 Rudolf Ahlswede 2007 Sergio Verdú 2008 Robert M. Gray 2009 Jorma Rissanen

2010–present	2010 Te Sun Han 2011 Shlomo Shamai (Shitz) 2012 Abbas El Gamal 2013 Katalin Marton 2014 János Körner 2015 Robert Calderbank