http://users.soe.ucsc.edu/~draper/eBay-Google-2013.html
http://www.cs.ust.hk/~qyang/Teaching/537/PPT/em-note.pdf
http://blog.csdn.net/yangliuy/article/details/8302599
http://blog.csdn.net/yangliuy/article/details/8457329
https://www.ipam.ucla.edu/schedule.aspx?pc=gss2012
https://www.ipam.ucla.edu/publications/gss2012/gss2012_10596.pdf
https://www.ipam.ucla.edu/wowzavideo.aspx?vfn=10596.mp4&vfd=gss2012
https://github.com/mli/nystrom
https://github.com/zhangkaixu/minitools/blob/master/lda.py
https://github.com/zhangkaixu/minitools/blob/master/lda.py
http://perso.telecom-paristech.fr/~gfort/GLM/Programs.html
http://ycool.com/post/9e3yamd
http://www.36kr.com/p/154144.html
http://www.36kr.com/p/154450.html
http://deeplearning.stanford.edu/wiki/index.php/神经网络
http://www.cs.princeton.edu/~blei/kdd-tutorial.pdf
http://bbs.csdn.net/topics/310247927
http://www.cnblogs.com/stephen-liu74/archive/2011/10/06/2180629.html
http://www.google.com.hk/search?q=Image+img%3DImage.createImage(width,height)+import&newwindow=1&safe=strict&ei=7FZ5UYzkC8qTiQf26IHAAg&start=10&sa=N
https://github.com/zygmuntz/kaggle-advertised-salaries
https://github.com/JohnLangford/vowpal_wabbit/wiki
http://fastml.com/predicting-closed-questions-on-stack-overflow/
http://fastml.com/predicting-advertised-salaries/