object:Price's Law object:Derek J. de Solla Pirce
class:laws
--- WIKI
Derek John de Solla Price (22 January 1922 - 3 September 1983) was a physicist, historian of science, and information scientist, credited as the father of scientometrics.
Price's major scientific contri butions include:
Price's square root law or Price's law pertains to the relationship between the literature on a subject and the number of authors in the subject area, stating that half of the publications come from the square root of all contri butors.[4] Thus, if 100 papers are written by 25 authors, five authors will have contri buted 50 papers. Price's law is related to Lotka's law and has been likened to the Matthew Principle.[5][6] It can be modeled using a approximately L-shaped graph, with number of people on the Y-axis, and productivity or resources on the X-axis.[6]
Studies of the exponential growth of science and the half-life of scientific literature;
Quantitative studies of the network of citations between scientific papers (Price 1965), including the discovery that both the in- and out-degrees of a citation network have power-law distributions, making this the first published example of a scale-free network;
Price's model, a mathematical theory of the growth of citation networks, based on what would now be called a preferential attachment process (Price 1976);[7]
An analysis of the Antiky thera mechanism,[8] an ancient Greek analogue computer and astronomical instrument (Price 1959, 1974).[9][10][11][12][13][14]
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