June 2020
Intermediate to advanced
382 pages
11h 39m
English
Content preview from 40 Algorithms Every Programmer Should Know
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Lift
Another way to estimate the quality of a rule is by calculating the lift. The lift returns a number that quantifies how much improvement has been achieved by a rule at predicting the result compared to just assuming the result at the right-hand side of the equation. If the X and Y itemsets were independent, then the lift is calculated as follows: