(Herman) (ChernoffM.) (H.) (Rizvi) returned 9 hits

Sort results by: date | relevance
Authors: Herman Chernoff (1923-) & M. H. Rizvi
Experiment showing random permutations of features used in Chernoff's faces affect error rate of classification by about 25 percent
Category: Statistics & Graphics
Author: Herman Helmholtz (1821-1894)
Discovery of time course of muscle action and nerve impulses by graphical methods.
Category: Technology
Authors: Herman P. Friedman (c. 1930-2010) & R. M. Goldwyn (1936-1994) & J. H. Siegel
Irregular polygon ("star plot'') to represent multivariate data (with vertices at equally spaced intervals, distance from center proportional to the value of a variable) [but see Georg von Mayr in 1877 cite[S. 78]{vonMayr:1877} for first use]
Category: Statistics & Graphics
Author: Herman Chernoff (1923-)
Cartoons of human face to represent multivariate data
Category: Statistics & Graphics
Author: Herman Hollerith (1860-1929)
Invention of the punched card for use in a machine to tabulate the USA Census (in 1890). Hollerith's company eventually became IBM
Category: Technology
Authors: D. H. Leavens & F. C. Martin
"Log Square'' paper ($log y, log x$, for relations which are linear in log scales)
Category: Technology
Authors: Howard H. Aiken (1900-1973) & Grace Hopper (1906-1992)
Harvard's Mark I, the first digital computer, put in service. Officially known as the "IBM Automatic Sequence Controlled Calculator'' (ASCC), the Mark I was 50 feet long and weighed about 5 tons.
Category: Technology
Authors: Jerome H. Friedman & John W. Tukey (1915-2000) & M. A. Fishkeller (1915-2000)
Start of true interactive graphics in statistics; PRIM-9, the first system in statistics with 3-D data rotations provided dynamic tools for projecting, rotating, isolating and masking multidimensional data in up to nine dimensions
Category: Statistics & Graphics
Author: Edward Walter Maunder (1851-1928)
Use of the "butterfly diagram'' to study the variation of sunspots over time, leading to the discovery that they were markedly reduced in frequency from 1645--1715 (the "Maunder minimum''). [Earlier work, started in 1843 by H. Schwabe, showed that sunspots exhibit an approximately twenty-two year cycle, with each eleven-year cycle of sunspots followed by a reversal of the direction of the sun's magnetic field]
Category: Statistics & Graphics