The English (resp.
we experiment with two monolingual twitter data sets: and Spanish (4.8M) tweets using the public Twitter Streaming API 3 with language filters en and es (ii) a BACKGROUND corpus of 296K English and 150K Spanish (non-annotated) tweets released with the test data of the RepLab task (Amigó et al., 2013) described below All twitter data was tokenized using Bird et al.