This paper proposes a method called URI immunization to elude Web spam such as Trackback Spam and Comment Spam. The basic strategy of URI immunization is to change URI frequently so that spam cannot follow the change of URI. This paper clarifies the notion of Import URI and Export URI, and how import URI can be immunized to elude spam. Experimental results show that URI immunization blocked nearly 100% of Trackback spams with a very simple method.

      @InProceedings{ k:tc06-1,
      author = {Asanobu KITAMOTO},
      title = {URI Immunization to Elude Web Spam},
      booktitle = {NII Technical Report},
      number = {NII-2006-010J},
      pages = {1-12},
      year = 2006,
      month = 7,
      doi = {},
      note = { (in Japanese)},
      }