@inproceedings{Sato:2003:IRAL,
  author = {Sato, Nobuyoshi  and  Uehara, Minoru  and  Sakai, Yoshifumi},
  title  = {Temporal Ranking for Fresh Information Retrieval},
  booktitle = {Proceedings of the Sixth International Workshop on Information Retrieval with Asian Languages},
  editor = {Jun Adachi and Kam-Fai Wong},
  url    = {http://www.aclweb.org/anthology/W03-1115.pdf},
  year   = 2003,
  pages  = {116--123}
}