Mattias Fagerlund mfagerlund
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| import numpy as np | |
| from math import exp, log | |
| """ | |
| SGD for logistic loss + factorization machines | |
| The code follows this paper: | |
| [1] http://www.ics.uci.edu/~smyth/courses/cs277/papers/factorization_machines_with_libFM.pdf | |
| """ | |
| def sigmoid(x): |