http://deeplearning4j.org/word2vec#intro
https://en.wikipedia.org/wiki/Word2vec
https://www.quora.com/How-does-word2vec-work
http://papers.nips.cc/paper/5021-distributed-representations-of-words-and-phrases-and-their-compositionality.pdf
http://arxiv.org/pdf/1402.3722v1.pdf
https://levyomer.files.wordpress.com/2014/09/neural-word-embeddings-as-implicit-matrix-factorization.pdf
https://en.wikipedia.org/wiki/Word2vec
https://www.quora.com/How-does-word2vec-work
http://papers.nips.cc/paper/5021-distributed-representations-of-words-and-phrases-and-their-compositionality.pdf
http://arxiv.org/pdf/1402.3722v1.pdf
https://levyomer.files.wordpress.com/2014/09/neural-word-embeddings-as-implicit-matrix-factorization.pdf
