Paper: Relational-Realizational Parsing

ACL ID C08-1112
Title Relational-Realizational Parsing
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2008

State-of-the-art statistical parsing models applied to free word-order languages tend to underperform compared to, e.g., pars- ing English. Constituency-based mod- els often fail to capture generalizations that cannot be stated in structural terms, and dependency-based models employ a ‘single-head’ assumption that often breaks in the face of multiple exponence. In this paper we suggest that the position of a con- stituent is a form manifestation of its gram- matical function, one among various pos- sible means of realization. We develop the Relational-Realizational approach to pars- ing in which we untangle the projection of grammatical functions and their means of realization to allow for phrase-structure variability and morphological-syntactic in- teraction. We empirically demonstrat...