Zhongda Xie - 130526

Progress in Last Week:

(1)Due to lack of golden standard at the moment, compare the results of three document diversification methods based on intuitive feelings. The simple and arbitrary method seems to be good, because it allows no reduplication.

(2)Make some changes to the other methods, and put more emphasis on diversity score, thus getting a better result on some queries.

Plan for This Week:

(1)Find out why little improvement was seen on some hard queries, and think of solutions to make a change.