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Chomsky hierarchy
Sign in to saveAlso known as Chomsky–Schützenberger hierarchy
containment hierarchy of classes of formal grammars
Wikidata facts
- Instance of
- language classification
- Named after
- Marcel-Paul Schützenberger
- Main subject
- formal grammar
Show 4 more facts
- time of discovery or invention
- 1956-00-00
- discoverer or inventor
- Noam Chomsky
- Stack Exchange tag
- cs.stackexchange.com/tags/chomsky-hierarchy
- items classified
- formal grammar
Sources (3)
via Wikidata · CC0
~9 min read
Encyclopedic overview
Set inclusions described by the Chomsky hierarchy The Chomsky hierarchy in the fields of formal language theory, computer science, and linguistics, is a containment hierarchy of classes of formal grammars. A formal grammar describes how to form strings from a formal language's alphabet that are valid according to the language's syntax. The linguist Noam Chomsky theorized that four different classes of formal grammars existed that could generate increasingly complex languages. Each class can also completely generate the language of all inferior classes (set inclusive).
History
Excerpted from Wikipedia’s “Chomsky hierarchy” article, available under the CC BY-SA 4.0 licence.