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Perfect hash function

In computer science, a perfect hash function h for a set S is a hash function that maps distinct elements in S to a set of m integers, with no collisions. In mathematical terms, it is an injective function.

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Construction

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Perfect hash function

Nodes27
Edges26
Triples120
Avg. degree1.93
Density0.074074
Components1

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Perfect hash function

Top relations

related to Further reading · 77
Perfect hash function → ACM, ACM Conference, ACM Press, Alan, Algorithms, Annual ACM-SIAM Symposium On, Botelho, Brain, Charles, Cichelli, CIKM07, Clifford Stein, Communications, Cormen, Data Management Applications, Discrete Mathematics, Discusses, Djamal Belazzougui, Douglas, Experience
related to External links · 10
Perfect hash function → BBHash, Bob Jenkinscmph, Has, Hash, JavaMPHSharp, Minimal Perfect Hashing, Minimal Perfect Hashing Library, Perfect, Perl, Sux4J
related to Construction · 6
Perfect hash function → Fredman, If, It, Komlós, Szemerédi, The
related to Minimal perfect hash function · 5
Perfect hash function → Assuming, In, It, Let, Then
related to Performance of perfect hash functions · 5
Perfect hash function → Bits, For, Let, The, This
related to Space lower bounds · 5
Perfect hash function → For, Fredman, Komlós, Szemerédi, The
related to Order preservation · 4
Perfect hash function → However, In, Moreover, This
related to Application · 3
Perfect hash function → Each, One, With
related to Dynamic perfect hashing · 3
Perfect hash function → Solutions, This, Using
is a · 1
Perfect hash function → perfect hash function that maps n keys to n consecutive integers

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Important terminology

hash perfect function time functions hashing constant minimal range space key size bits table construction set keys elements used lower

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Perfect hash functionis aperfect hash function that maps n keys to n consecutive integers0.90text
Perfect hash functionrelated to ApplicationOne0.60section
Perfect hash functionrelated to ApplicationEach0.60section
Perfect hash functionrelated to ApplicationWith0.60section
Perfect hash functionrelated to ConstructionThe0.60section
Perfect hash functionrelated to ConstructionFredman0.60section
Perfect hash functionrelated to ConstructionKomlós0.60section
Perfect hash functionrelated to ConstructionSzemerédi0.60section
Perfect hash functionrelated to ConstructionIf0.60section
Perfect hash functionrelated to ConstructionIt0.60section
Perfect hash functionrelated to Dynamic perfect hashingUsing0.60section
Perfect hash functionrelated to Dynamic perfect hashingThis0.60section

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