July 2018
Beginner to intermediate
146 pages
3h 39m
English
Content preview from Hands-On Recommendation Systems with Python
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F1 score
The F1 score is a metric that conveys the balance between precision and recall. It is the harmonic mean of the precision and recall. An F1 score of 1 implies perfect precision and recall, whereas a score of 0 implies precision and recall are not possible:
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