- 行业: Technology
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The National Institute of Standards and Technology (NIST) — known between 1901 and 1988 as the National Bureau of Standards (NBS) — is a measurement standards laboratory and a non-regulatory agency of the United States Department of Commerce. The institute's official mission is to promote U.S. ...
The number of authors making n contributions is about 1/n<sup>a</sup> of those making one contribution, where a is often nearly 2.
Industry:Computer science
The number of bits which differ between two binary strings. More formally, the distance between two strings A and B is ∑
Industry:Computer science
The number of elements in a hash table divided by the number of slots. Usually written α (alpha).
Industry:Computer science
The number of nodes in a quadtree region representation for a simple polygon (i.e. with nonintersecting edges and without holes) is O(p+q) for a 2<sup>q</sup>× 2<sup>q</sup> image with perimeter p measured in pixel widths. In most cases, q is negligible, and thus, the number of nodes is proportional to the perimeter. It also holds for three-dimensional data where the perimeter is replaced by surface area, and in general for d-dimensions where instead of perimeter we have the size of the (d-1)-dimensional interfaces between the d-dimensional objects.
Industry:Computer science
The part of a group of data by which it is sorted, indexed, cross referenced, etc.
Industry:Computer science
The point when conditions are met and a recursive algorithm ceases calling itself and begins to return values.
Industry:Computer science
The possible results of a function or relation. For instance, the range of cosine is (-1,+1).
Industry:Computer science
The probability of occurrence of words or other items starts high and tapers off. Thus, a few occur very often while many others occur rarely. Formal Definition: P<sub>n</sub> ~ 1/n<sup>a</sup>, where P<sub>n</sub> is the frequency of occurrence of the n<sup>th</sup> ranked item and a is close to 1.
Industry:Computer science
