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NLP > Regexes > Flashcards

Regexes Flashcards

1
Q

Formal Grammars

A
  • Descriptions of valid structures in a language
  • Production rules map non-terminals to terminals
  • Regular grammars model sequential structures
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2
Q

Regular expressions

A

-Describe regular grammars with characters
-Matched against texts to find instances of concepts
-Used in NLP particularly for numeric entities

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3
Q

Benefits and limitations

A
  • Effective for semi-closed classes, often very efficient
  • Development complex for sophisticated concepts
  • Restriction to sequential patterns limits applicability
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NLP (8 decks)

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