We compared the quality of paraphrases extracted by our method with the closest previous work (BUCC-2013) (Xu et al., 2013), in which a similar phrase table was created using Moses from monolingual parallel tweets that contain the same named entity and calendar date.
for the (vec) version, vectors of a pair of sentences v 1 and v 2 are converted into one feature vector, , by concatenating the element-wise sum v 1 + v 2 and absolute differ- We also provide the (sim) variation, which directly uses the single cosine similarity score between two sentence vectors.