Radhouane Guermazi Mohamed Hammami Abdelmajid Ben Hamadou WebAngels Filter: A Violent Web Filtering Engine Using Textual and Structural Content-Based Analysis. 268-282 2008 ICDM http://dx.doi.org/10.1007/978-3-540-70720-2_21 conf/incdm/2008 db/conf/incdm/incdm2008.html#GuermaziHH08