Paper: Lexical Patterns or Dependency Patterns: Which Is Better for Hypernym Extraction?

ACL ID W09-1122
Title Lexical Patterns or Dependency Patterns: Which Is Better for Hypernym Extraction?
Venue International Conference on Computational Natural Language Learning
Session Main Conference
Year 2009
Authors

We compare two different types of extraction patterns for automatically deriving semantic information from text: lexical patterns, built from words and word class information, and dependency patterns with syntactic informa- tion obtained from a full parser. We are partic- ularly interested in whether the richer linguis- tic information provided by a parser allows for a better performance of subsequent informa- tion extraction work. We evaluate automatic extraction of hypernym information from text and conclude that the application of depen- dency patterns does not lead to substantially higher precision and recall scores than using lexical patterns.