Twitter NLP

http://aritter.github.io/twitter_ner.pdf
https://github.com/aritter/twitter_nlp
http://ec2-54-170-89-29.eu-west-1.compute.amazonaws.com:8000/
http://researcher.ibm.com/researcher/files/us-heq/sigir12twiner.pdf
http://www.cs.jhu.edu/~vandurme/papers/NeritTR13.pdf