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Robert W. Floyd
American computer scientist (1936-2001) · United States · On the map · Scientists · Died at 65
Robert W. Floyd was an American computer scientist. His contributions include the design of the Floyd-Warshall algorithm, which efficiently finds all shortest paths in a graph and his work on parsing; Floyd's cycle-finding algorithm for detecting cycles in a sequence was attributed to him as well.
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In one isolated paper he introduced the important concept of error diffusion for rendering images, also called Floyd-Steinberg dithering. He pioneered in the field of program verification using logical assertions with the 1967 paper Assigning Meanings to Programs. This was a contribution to what later became Hoare logic. Floyd received the Turing Award in 1978.