@misc {IOPORT.70492902,
    author       = {Li, Aixiang and Haraguchi, Makoto and Okubo, Yoshiaki},
    title        = {Implicit groups of web pages as constrained top N concepts},
    howpublished = {Web Intelligence/IAT Workshops, 190-194 (2008).},
    year         = {2008},
    doi          = {10.1109/WIIAT.2008.325},
    identifier   = {70492902},
}