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Iterated logarithm. In computer science, the iterated logarithm of , written log * (usually read " log star "), is the number of times the logarithm function must be iteratively applied before the result is less than or equal to . [1] The simplest formal definition is the result of this recurrence relation :
1871. Songwriter (s) Will S. Hays. " The Little Old Log Cabin in the Lane " is a popular song written by Will S. Hays in 1871 for the minstrel trade. Written in dialect, the song tells of an elderly man, presumably a slave or former slave, passing his later years in a broken-down old log cabin. The title is from a refrain: "de little old log ...
Log probability. In probability theory and computer science, a log probability is simply a logarithm of a probability. [1] The use of log probabilities means representing probabilities on a logarithmic scale , instead of the standard unit interval . Since the probabilities of independent events multiply, and logarithms convert multiplication to ...
HyperLogLog is an algorithm for the count-distinct problem, approximating the number of distinct elements in a multiset. [1] Calculating the exact cardinality of the distinct elements of a multiset requires an amount of memory proportional to the cardinality, which is impractical for very large data sets. Probabilistic cardinality estimators ...
The caste system in India is the paradigmatic ethnographic instance of social classification based on castes. It has its origins in ancient India, and was transformed by various ruling elites in medieval, early-modern, and modern India, especially in the aftermath of the collapse of the Mughal Empire and the establishment of the British Raj.
Yule log. The Yule log, Yule clog, or Christmas block is a specially selected log burnt on a hearth as a winter tradition in regions of Europe, and subsequently North America. The origin of the folk custom is unclear. Like other traditions associated with Yule (such as the Yule boar ), the custom may ultimately derive from Proto-Indo-European ...
Login.gov is a single sign-on solution for US government websites. It enables users to log in to services from numerous government agencies using the same username and password. Login.gov was jointly developed by 18F and the US Digital Service . [1]
A logarithmically convex function f is a convex function since it is the composite of the increasing convex function and the function , which is by definition convex. However, being logarithmically convex is a strictly stronger property than being convex. For example, the squaring function is convex, but its logarithm is not.