{"67888":{"#nid":"67888","#data":{"type":"news","title":"GTISC and ARC Researchers Collaborate to Develop Next-Generation Spam Filters","body":[{"value":"\u003Cp\u003EGraduate student Anirudh Ramachandran\u0027s work on filtering spam usingnetwork-level properties will appear at the ACM Conference on Computerand Communications Security (CCS), ACM\u0027s top security conference, atthe end of October.  Ramachandran and his advisor, Assistant ProfessorNick Feamster, have been working with Professor Santosh Vempala todevelop next-generation spam filtering techniques.\u003Cbr \/\u003E\u003Cbr \/\u003ESpam is becoming increasingly virulent as it makes use of images andPDFs to evade content-based filters.  To make matters worse, spammersare sending spam from \u0026quot;fresh\u0026quot; machines every day, which makes itdifficult to maintain static blacklists of known bad senders.  \u003Cbr \/\u003E\u003Cbr \/\u003ETo get a step ahead, the researchers have taken a different approach:\u003Cbr \/\u003Erather than filtering spam based on content or an ephemeral identity ofthe sender (e.g., an IP address), the researchers have invented a newtechnique called \u0026quot;behavioral blacklisting\u0026quot;.  Behavioral blacklistingaims to learn and \u0026quot;fingerprint\u0026quot; spammers\u0027 sending patterns---forexample, the set of recipients a particular sender is targeting---andblacklist senders based on their sending behavior, rather than a fixedidentity.\u003Cbr \/\u003E\u003Cbr \/\u003EThe researchers developed their first behavioral blacklisting techniqueby applying Professor Vempala\u0027s novel spectral clustering algorithms,which have also successfully been applied to other areas (e.g., Websearch).\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022\/\/www.cc.gatech.edu\/~avr\/publications\/ccs07.pdf\u0026quot;\u0022\u003EYou can read the paper here.\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr \/\u003E\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EGraduate student Anirudh Ramachandran\u0027s work on filtering spam using network-level properties will appear at the ACM Conference on Computer and Communications Security (CCS), ACM\u0027s top security conference, at the end of October.\u003Cbr \/\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":"","uid":"27154","created_gmt":"2011-06-20 17:12:10","changed_gmt":"2016-10-08 03:09:04","author":"Louise Russo","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2007-08-24T00:00:00-04:00","iso_date":"2007-08-24T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"groups":[{"id":"47223","name":"College of Computing"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}