- hashing function
- функция расстановки
English-Russian dictionary of computer science. 2015.
hashing function
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Hashing — may refer to: * Hash function *Hash House Harriers *Geohash … Wikipedia
Hashing — Eine Hashfunktion oder Streuwertfunktion ist eine Funktion bzw. Abbildung, die zu einer Eingabe aus einer üblicherweise großen Quellmenge eine Ausgabe, den Hashcode, erzeugt, meist aus einer kleineren Zielmenge. Die Hashwerte beziehungsweise… … Deutsch Wikipedia
hashing — The process of creating or recreating a hash table by recalculating the search index code assigned to each piece of data in the table. See also hash function; hash table … Dictionary of networking
Hash function — A hash function is any well defined procedure or mathematical function for turning some kind of data into a relatively small integer, that may serve as an index into an array. The values returned by a hash function are called hash values, hash… … Wikipedia
Perfect hash function — A perfect hash function for a set S is a hash function that maps distinct elements in S to a set of integers, with no collisions. A perfect hash function has many of the same applications as other hash functions, but with the advantage that no… … Wikipedia
Cryptographic hash function — A cryptographic hash function (specifically, SHA 1) at work. Note that even small changes in the source input (here in the word over ) drastically change the resulting output, by the so called avalanche effect. A cryptographic hash function is a… … Wikipedia
Universal hashing — is a randomized algorithm for selecting a hash function F with the following property: for any two distinct inputs x and y , the probability that F(x)=F(y) (i.e., that there is a hash collision between x and y ) is the same as if F was a random… … Wikipedia
Double hashing — is a computer programming technique used in hash tables to resolve hash collisions, cases when two different values to be searched for produce the same hash key. It is a popular collision resolution technique in open addressed hash tables. Like… … Wikipedia
Locality sensitive hashing — (LSH) is a method of performing probabilistic dimension reduction of high dimensional data. The basic idea is to hash the input items so that similar items are mapped to the same buckets with high probability (the number of buckets being much… … Wikipedia
Cuckoo hashing — example. The arrows show the alternative location of each key. A new item would be inserted in the location of A by moving A to its alternative location, currently occupied by B, and moving B to its alternative location which is currently vacant … Wikipedia
Dynamic perfect hashing — In computer science, dynamic perfect hashing is a programming technique for resolving collisions in a hash table data structure.[1][2][3] This technique is useful for situations where fast queries, insertions, and deletions must be made on a… … Wikipedia
