Slide 1

System Architecture

What’s New This Year

Outline

Dependency Relation Matching in QA

Extracting Dependency Relation Triples

Examples of relation triples

Learning Relation Similarity

Using Mutual Information to Measure Relation Co-occurrence

Measuring Path Similarity – 1

Measuring Path Similarity – 2

Selecting Answer Strings Statistically

Discussions on Evaluation Results

Outline

Question Typing and Passage Retrieval for Factoid/List Q’s

Exploiting Definition Sentences to Answer Factoid/List Questions

Exploiting Definitions from External Knowledge

Outline

Conclusion

Q & A