NDV may refer to:
*
Newcastle disease virus Newcastle usually refers to:
*Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England
*Newcastle-under-Lyme, a town in Staffordshire, England
*Newcastle, New South Wales, a metropolitan area in Australia, named after Newcastle ...
, the virus that causes Newcastle disease
*
Niger Delta Vigilante, an armed militia group in the Niger Delta
* Number of Distinct Values, a metric useful in determining
density estimation
In statistics, probability density estimation or simply density estimation is the construction of an estimate, based on observed data, of an unobservable underlying probability density function. The unobservable density function is thought o ...
, especially when working with
histogram
A histogram is an approximate representation of the distribution of numerical data. The term was first introduced by Karl Pearson. To construct a histogram, the first step is to " bin" (or "bucket") the range of values—that is, divide the ent ...
s or when selecting the optimal indexing strategy in a
relational database
A relational database is a (most commonly digital) database based on the relational model of data, as proposed by E. F. Codd in 1970. A system used to maintain relational databases is a relational database management system (RDBMS). Many relatio ...
*
Nick D'Virgilio
Nicholas D'Virgilio (born November 12, 1968), often referred to as NDV, is an American drummer, singer and guitarist, best known as a member of the progressive rock band Spock's Beard. He was also one of two drummers chosen to replace Phil Coll ...
,
progressive rock
Progressive rock (shortened as prog rock or simply prog; sometimes conflated with art rock) is a broad genre of rock music that developed in the United Kingdom and United States through the mid- to late 1960s, peaking in the early 1970s. Init ...
drummer
A drummer is a percussionist who creates music using drum
The drum is a member of the percussion group of musical instruments. In the Hornbostel-Sachs classification system, it is a membranophone. Drums consist of at least one mem ...
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