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UMINF 19.03

Bottom-Up Unranked Tree-to-Graph Transducersfor Translation into Semantic Graphs

We present a formal model for translating unranked syntactic trees, such as dependency trees, into semantic graphs. The proposed tree-to-graph transducers can serve as a formalization of transition-based systems which recently have been shown to perform very well, yet hitherto lack a suitable formal basis. Our model features “extended” rules and a useful normal form, comes with an efficient translation algorithm, and can in a straightforward manner be equipped with weights.

Keywords

Dependency trees, Semantic parsing, Semantic representations, Transducers

Authors

Johanna Bjorklund , Shay Cohen , Frank Drewes and Giorgio Satta

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Entry responsible: Johanna Bjorklund

Page Responsible: Frank Drewes
2021-11-28