James Abello Tina Eliassi-Rad Nishchal Devanur Detecting Novel Discrepancies in Communication Networks. 8-17 2010 ICDM http://doi.ieeecomputersociety.org/10.1109/ICDM.2010.145 conf/icdm/2010 db/conf/icdm/icdm2010.html#AbelloED10