remove N (size of corpus vocabulary) from phrase model formula #5
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…is not used in gensim implementation
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According to the gensim documentation (https://radimrehurek.com/gensim/models/phrases.html#id2) for the models.phrases class, the formula for the phase model is from Tomas Mikolov, Ilya Sutskever, Kai Chen, Greg Corrado, and Jeffrey Dean. Distributed Representations of Words and Phrases and their Compositionality. In Proceedings of NIPS, 2013.
In the paper, the equation does not include N (size of the corpus vocabulary) as is listed in your notebook. I updated the equation removing N and it's definition
https://papers.nips.cc/paper/5021-distributed-representations-of-words-and-phrases-and-their-compositionality.pdf
FYI, I saw you present this at PyData D.C. I thought it was a great presentation and still, clearly, refer to this notebook often. Thanks for putting it together.