DATE: | Wed, Mar 26, 2014 |
TIME: | 2:30 pm |
PLACE: | Council Room (SITE 5-084) |
TITLE: | Interpreting Anaphoric Shell Nouns using Antecedents of Cataphoric Shell Nouns as Training Data |
PRESENTER: | Varada Kolhatkar University of Toronto |
ABSTRACT:
Interpreting anaphoric shell nouns (ASNs) such as this issue and this fact
is essential to understanding virtually any substantial natural language
text. One obstacle in developing methods for automatically interpreting
ASNs is the lack of annotated data. We tackle this challenge by exploiting
cataphoric shell nouns (CSNs) whose construction makes them particularly
easy to interpret (e.g., the fact that X). We propose an approach that
uses automatically extracted antecedents of CSNs as training data to
interpret ASNs. We achieve precisions in the range of 0.35 (baseline =
0.21) to 0.72 (baseline = 0.44), depending upon the shell noun. |