THUIR at NTCIR-10 INTENT-2 Task

@inproceedings{Xue2013THUIRAN,
  title={THUIR at NTCIR-10 INTENT-2 Task},
  author={Yufei Xue and Fei Chen and Aymeric Damien and Cheng Luo and Xin Li and Shuai Huo and Min Zhang and Yiqun Liu and Shaoping Ma},
  booktitle={NTCIR},
  year={2013}
}
 We only diversify the search result when a query is informational.  To identify whether a query is informational or navigational, we leverage C4.5 algorithm to learn a decision tree.  The features used in this algorithm are as follows: nCS(q)=(Sessions of q that involves less than n clicks) / (session of q) nRS(q)=(Session of q that involves clicks only on top n results) / (Session of q) CD(q)=(Click on the most popular result of q) / (Click on all results of q) Resource Weight Resource… CONTINUE READING