Cetinoglu, Ozlem, Foster, JenniferORCID: 0000-0002-7789-4853, Nivre, Joakim, Hogan, Deirdre, Cahill, AoifeORCID: 0000-0002-3519-7726 and van Genabith, JosefORCID: 0000-0003-1322-7944
(2010)
LFG without C-structures.
In: the 9th International Workshop on Treebanks and Linguistic Theories, 3 - 4 Dec. 2010, Tartu Estonia..
We explore the use of two dependency parsers, Malt and MST, in a Lexical Functional Grammar parsing pipeline. We compare this to the traditional LFG parsing pipeline which uses constituency parsers. We train the dependency parsers not on classical LFG f-structures but rather on modified
dependency-tree versions of these in which all words in the input sentence are represented and multiple heads are removed. For the purposes of comparison, we also modify the existing CFG-based LFG parsing pipeline so that these "LFG-inspired" dependency trees are produced. We find that the differences in parsing accuracy over the various parsing architectures is small.