Paper: Combining Deep Linguistics Analysis And Surface Pattern Learning: A Hybrid Approach To Chinese Definitional Question Answering

ACL ID H05-1039
Title Combining Deep Linguistics Analysis And Surface Pattern Learning: A Hybrid Approach To Chinese Definitional Question Answering
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2005
Authors

We explore a hybrid approach for Chinese definitional question answering by com- bining deep linguistic analysis with sur- face pattern learning. We answer four questions in this study: 1) How helpful are linguistic analysis and pattern learning? 2) What kind of questions can be answered by pattern matching? 3) How much an- notation is required for a pattern-based system to achieve good performance? 4) What linguistic features are most useful? Extensive experiments are conducted on biographical questions and other defini- tional questions. Major findings include: 1) linguistic analysis and pattern learning are complementary; both are required to make a good definitional QA system; 2) pattern matching is very effective in an- swering biographical questions while less effective for other def...