Presentation at CISIS 2013 International conference of the paper: Twitter Content-based Spam Filtering

1. Igor Santos
Igor Miñambres-Marcos
Carlos Laorden
Patxi Galán-García
Aitor Santamaría-Ibirika
Pablo G. Bringas

27. Detecting spammer accounts
Content-based analysis

30. (TweetSpike) (Legitimate)
spam ham

32. t1
t2
t3
m1
m2
m10
m3
m9
m4
m7
m8
m5
m11
m6

35. legitimate
spam

36. legitimate
spam
testing
probability

37. Dynamic Markov Chain (DMC)
Prediction by Partial Match (PPM)

39. Classifier Acc. Sp Sr F-Measure AUC
Random Forest N=50 96.42 0.98 0.94 0.96 0.99
DMC without Adaptation 95.99 0.96 0.95 0.96 0.99
Random Forest N=10 95.96 0.97 0.94 0.95 0.99
PPM without Adaptation 94.80 0.97 0.91 0.94 0.99
Naive Bayes Multinomial Word Frequency 94.94 0.95 0.93 0.94 0.98
Bayes K2 94.12 0.99 0.88 0.93 0.98
DMC with Adaptation 93.11 0.94 0.90 0.92 0.98
C4.5 95.79 0.98 0.92 0.95 0.97
KNN K=3 93.71 0.97 0.89 0.93 0.97
SVM PVK 95.81 0.97 0.93 0.95 0.96
PPM with Adaptation 76.50 0.78 0.69 0.72 0.86
Naive Bayes 72.72 0.64 0.89 0.75 0.76

41. A new and public dataset of twitter
spam to serve as evaluation
Adaptation of content-based
spam filtering to Twitter
A new compression-based text
filtering library for the ML tool WEKA

42. enhance this approach using social
network features
semantic capabilities by studying
the linguistic relationships

45. 1. Follow me: http://files.twiyo-magazine.com/200000231-
1dfbb1ef57/follow-me-twitter.png
2. Twitter: http://www.redunonet.co/twitter.png
3. Twitter Infography: http://expandedramblings.com/index.php/march-
2013-by-the-numbers-a-few-amazing-twitter-stats
4. Twitter news: http://techtips.biz/wp-
content/uploads/sites/9/2013/07/twitter-news.jpg
5. Customer service: http://www.parature.com/wp-
content/uploads/2012/04/customerservice_twitter.jpg
6. MUSI Deusto: https://twitter.com/MUSIDeusto
7. Gossip: http://polskilive.pl/wp-content/uploads/2013/02/bigstock-
Gossiping-Women-Retro-Clip-A-17343494.jpg
8. Cyber-bullying:
http://jodielouiseuow.files.wordpress.com/2013/05/2010-10-21-cyber-
bullies.jpg
9. Sad teddy bear: http://thumbs.dreamstime.com/x/sad-lonely-teddy-
bear-15726476.jpg

46. 10. Spam bird: http://all4boys.ru/_pu/0/52734883.png
11. Dollars: http://vegasgravy.com/News-detail/two-women-caught-for-
transporting-drug-money-from-vegas/dollars/
12. Day 97: Infected by dustywrath:
http://www.flickr.com/photos/10921499@N07/2187318683
13. my bank sucks by B Rosen:
http://www.flickr.com/photos/rosengrant/3537904106/
14. Spam wall by freezelight:
http://www.flickr.com/photos/63056612@N00/155554663/
15. Bird with boxing gloves: http://www.fightlikeagirlclub.com/wp-
content/uploads/2010/11/Bird-with-Boxing-Gloves.png
16. Twitter media: http://media.meltybuzz.fr/article-1440806-
ajust_930/media.jpg
17. Construction bird: http://i1-news.softpedia-
static.com/images/news2/Malicious-URL-Filtering-on-Twitter-2.jpg
18. Bird in egg: http://needsomeonetoblog.com/wp-
content/uploads/2013/07/bigstock-Blue-bird-in-egg-6079257.jpg

47. 19. Document folder:
http://www.gsstr.nl/upload/9/4/1/gsstr/documentfolder.large.jpg?0.7202
662836172612
20. ZIP: http://www.kohl.bz/fileadmin/template/ZIP.png
21. Bird in pole: http://www.microcenterblog.com/wp-
content/uploads/2013/01/Fake-or-Real-150x150.jpg
22. Bird screaming: http://www.bluewaterbrand.com/wp-
content/uploads/2013/04/168_2671597.jpg
23. Bird with sign: http://blog.retirementincomenetwork.com/wp-
content/uploads/2013/05/twitter-bird.jpg
24. Bird in lineup: http://sparkboutik.com/wp-
content/uploads/2012/01/twitterfauxpas.jpg