Pass relevance scores through a sigmoid before PFAR #41
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PFAR is expecting probabilities in the range 0 to 1, and the tuning parameters don't work as expected otherwise. We can squash our dot products into that range with a sigmoid and interpret the result as a probability that a user is interested in an item
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PFAR is expecting probabilities in the range 0 to 1, and the tuning parameters don't quite work as expected otherwise. One option is to squash our dot products into that range with a sigmoid and interpret the result as a probability that a user is interested in an item