Dear XLE-ists,
We are using XLE in a bilingual text generation project (http://web.science.mq.edu.au/~ayeye), and we would like to be able to generate sentences from s-structures rather than f-structures. It seems that projections other than c- and f-structures get encoded in the exported prolog files as attributes of the f-structure. This means that generating from an s-structure technically boils down to generating from an underspecified f-structure (where everything is missing except the "s::" attributes). But even when declaring all attributes of f-structures addable, we still cannot generate from s-structures. I think this is because the PRED attribute cannot be added to an underspecified f-structure, due of its central role in ensuring completeness and coherence. Is there a way to work around this limitation, short of using transfer rules? Has anyone ever tried to generate from other projections than the f-structure? Any help would be much appreciated.
Kind regards, François Lareau
Post-doc fellow Centre for Language Technology Macquarie University