| Shieber, StuartM.1986. AnIntroduction to Uni#cation-BasedApproaches to Grammar . Number 4 in CSLI Lecture Note Series. Stanford, Ca.: Center for the Study of Language and Information. |
....contain similar speci#cations that cause these values to eventually appear on the observed top level features. The rules that propagate the feature values through the syntactic structure are extensions of context free rules, and similar to those found in many feature based grammar theories #Shieber 1986#. Consider a simple context free rule involving some nonterminals X , Y and Z: X YZ X:f = Y:g #p 1 # X:f = Z:h #p 2 # This one determines that in a syntactic environment where nonterminal X expands to Y and Z, the feature f on X #brie#y, X:f# takes on the value of Y:g with probability p 1 ....
Shieber, StuartM.1986. AnIntroduction to Uni#cation-BasedApproaches to Grammar . Number 4 in CSLI Lecture Note Series. Stanford, Ca.: Center for the Study of Language and Information.
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