Hang Cui et al.
NUS at TREC-13 QA Main Task
17/20
Exploiting Definitions from External Knowledge
•Pre-complied wrappers for extraction of
specific fields of
information for list questions
–Works, product names and person titles.
–From both generated
definition sentences and existing definitions: cross validation.
–Achieves F-measure of 0.81 for 8 list
questions about works.