Conference Paper NEXTI at NTCIR-12 IMine-2 Task

欅, 惇志  ,  Keyaki, Atsushi  ,  波多野, 賢治  ,  Hatano, Kenji  ,  藤井, 敦  ,  Fujii, Atsushi

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.

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