Brace up terminologies coming your way...
Support: A measure of the prevalence of an event x in a given set of N data points. Support is effectively a first level indicator of something occurring frequent enough (say greater than 10% of the times) to be of interest.
In the case of two correlated events x & y,
Confidence: A measure of predictability of two events occurring together. Once confidence is above a certain threshold (say 70%), it means the two events show up together often enough to be used for rules/ decision making, etc.
Lift: A measure of the power of association between two events. For an event y that has occurred, how much more likely is event y to occur once it is known that event x has occurred
Support: A measure of the prevalence of an event x in a given set of N data points. Support is effectively a first level indicator of something occurring frequent enough (say greater than 10% of the times) to be of interest.
In the case of two correlated events x & y,
Confidence: A measure of predictability of two events occurring together. Once confidence is above a certain threshold (say 70%), it means the two events show up together often enough to be used for rules/ decision making, etc.
Lift: A measure of the power of association between two events. For an event y that has occurred, how much more likely is event y to occur once it is known that event x has occurred
No comments:
Post a Comment