wiki:Syntax

Version 1 (modified by xkovar3, 8 years ago) (diff)

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Syntax

What?

  • reveal and describe relationships among words
    • on various levels:
      • noun, verb prepositional phrases, clauses
      • dependency relation

Why?

  • syntactic units are carriers of meaning
    • e.g. "in the city"
      • meaning of "in", "the" is unclear, or very complicated
      • meaning of "in the city" is simply "where"
    • usable for mining information, question answering

How?

  • prerequisites
    • morphological information (e.g. part of speech, number, gender)
    • lexical semantic information (e.g. "pregnant" goes with women only)
  • statistical methods
    • annotated corpus -> inference of rules
    • hard to customize
  • rule-based methods
    • hard to develop and maintain the grammar information
    • easy to customize

... to be continued