Hash Functions

Some articles on hash function, hash, function, hash functions, functions:

Hash Table - Hashing - Choosing A Good Hash Function
... A good hash function and implementation algorithm are essential for good hash table performance, but may be difficult to achieve ... A basic requirement is that the function should provide a uniform distribution of hash values ... with exact doubling and halving of s, the hash function needs to be uniform only when s is a power of two ...
Locality-sensitive Hashing - Methods - Stable Distributions
... The hash function maps a d dimensional vector onto a set of integers ... Each hash function in the family is indexed by a choice of random and where is a d dimensional vector with entries chosen independently from a stable distribution and is a ... For a fixed the hash function is given by ...
Random Oracle
... Put another way, a random oracle is a mathematical function mapping every possible query to a random response from its output domain ... proofs they are typically used when no known implementable function provides the mathematical properties required by the proof ... are typically used to model cryptographic hash functions in schemes where strong randomness assumptions are needed of the hash function's output ...
Locality-sensitive Hashing - LSH Algorithm For Nearest Neighbor Search
... the width parameter and the number of hash tables ... In the first step, we define a new family of hash functions, where each function is obtained by concatenating functions from, i.e ... In other words, a random hash function is obtained by concatenating randomly chosen hash functions from ...

Famous quotes containing the word functions:

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