Frederick J. Damerau
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One of his most influential and ground-breaking papers was "A technique for computer detection and correction of spelling errors" published in 1964. He also developed and patented for IBM the first algorithm for placing hyphens automatically in words. In 1971 he published the book "Markov Models and Linguistic Theory : An Experimental Study of a Model for English."
After being active in research for over four decades, Fred Damerau died on January 27, 2009.