NEXTI at NTCIR-12 IMine-2 Task

Hidetsugu Nanba, Tetsuya Sakai, Noriko Kando, Atsushi Keyaki, Koji Eguchi, Kenji Hatano, Toshiyuki Shimizu, Yu Hirate, Atsushi Fujii
2016 NTCIR Conference on Evaluation of Information Access Technologies  
Our group NEXTI participated in the Query Understanding subtask for Japanese. We extracted subtopic candidates from retrieved web documents. Then, we merged them with query suggestion and query log data. We also identified the vertical intent of each subtopic using a method that combines machine learning-and k-NN-based methods. We conducted experiments and confirmed the effectiveness of our method.
dblp:conf/ntcir/NanbaSKKEHSHF16 fatcat:5jbptcspovb75fjnaagjogsipa