NUL System at NTCIR RITE-VAL Tasks.

@inproceedings{ishii-2014-nul, author = {Ai Ishii and Hiroshi Miyashita and Mio Kobayashi and Chikara Hoshino}, editor = {Noriko Kando and Hideo Joho and Kazuaki Kishida}, title = {{NUL System at NTCIR RITE-VAL Tasks}}, booktitle = {{Proceedings of the 11th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-11, National Center of Sciences, Tokyo, Japan, December 9-12, 2014}}, publisher = {National Institute of Informatics (NII)}, year = {2014}, url = {http://research.nii.ac.jp/ntcir/workshop/OnlineProceedings11/pdf/NTCIR/RITEVAL/05-NTCIR11-RITEVAL-HoshinoC.pdf} }