Shao Bo Cheng and  Yong-Jin Han and  Se Young Park and  Seong-Bae Park,  Identification of Spam Keywords Using Hierarchical Category in C2C E-commerce.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2014, vol. 94(10). 1791 - 1795
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/9999494.