On the String Translations Produced by Multi Bottom–Up Tree Transducers
Author(s) -
Daniel Gildea
Publication year - 2012
Publication title -
computational linguistics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.314
H-Index - 98
eISSN - 1530-9312
pISSN - 0891-2017
DOI - 10.1162/coli_a_00108
Subject(s) - computer science , string (physics) , tree (set theory) , top down and bottom up design , expressive power , point (geometry) , syntax , transducer , machine translation , translation (biology) , theoretical computer science , artificial intelligence , programming language , mathematics , acoustics , physics , combinatorics , theoretical physics , biochemistry , messenger rna , gene , chemistry , geometry
Tree transducers are defined as relations between trees, but in syntax-based machine translation, we are ultimately concerned with the relations between the strings at the yields of the input and output trees. We examine the formal power of Multi Bottom-Up Tree Transducers from this point of view.
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