Analysis of the Hindi Proposition Bank using Dependency Structure

摘要

This paper makes two contributions. First, we describe the Hindi Proposition Bank that contains annotations of predicate argument structures of verb predicates. Unlike PropBanks in most other languages, the Hind PropBank is annotated on top of dependency structure, the Hindi Dependency Treebank. We explore the similarities between dependency and predicate argument structures, so the PropBank annotation can be faster and more accurate. Second, we present a probabilistic rule-based system that maps syntactic dependents to semantic arguments. With simple rules, we classify about 47% of the entire PropBank arguments with over 90% confidence. These preliminary results are promising; they show how well these two frameworks are correlated. This can also be used to speed up our annotations.