Paper: Symbolic Preference Using Simple Scoring

ACL ID W07-2211
Title Symbolic Preference Using Simple Scoring
Venue Conference on Parsing Technologies
Session Main Conference
Year 2007

Despite the popularity of stochastic parsers, symbolic parsing still has some advantages, but is not practical without an effective mechanism for selecting among alternative analyses. This paper describes the symbolic preference system of a hybrid parser that combines a shallow parser with an overlay parser that builds on the chunks. The hy- brid currently equals or exceeds most sto- chastic parsers in speed and is approaching them in accuracy. The preference system is novel in using a simple, three-valued scor- ing method (-1, 0, or +1) for assigning preferences to constituents viewed in the context of their containing constituents. The approach addresses problems associ- ated with earlier preference systems, and has considerably facilitated development. It is ultimately based on viewing ...