Zhongda Xie - 130429

Progress in Last Week:

(1)Use different sources(metathesaurus, query definition and discharge summary) and their combinations to expand the query.

(2)Implement a new idea for query expansion, generate different schemas of queries based on the intent(searching for definition,searching for treatment and so on) of the query.

Plan for Next Week:

(1)Implement diversity ranking.

(2)Error analysis and improvement.