Contents
What does lift value mean?
The lift value is a measure of importance of a rule. The lift value of an association rule is the ratio of the confidence of the rule and the expected confidence of the rule.
What is the value range of the lift measure?
The lift is a value between 0 and infinity: A lift value greater than 1 indicates that the rule body and the rule head appear more often together than expected, this means that the occurrence of the rule body has a positive effect on the occurrence of the rule head.
Why is lift used?
Lifts can be essential for providing vertical circulation, particularly in tall buildings, for wheelchair and other non-ambulant building users and for the vertical transportation of goods. Some lifts may also be used for firefighting and evacuation purposes.
What is lift a B?
Lift: The lift between the occurrence of A and B. can be measured as: • If the resulting value is less than 1, then the. occurrence of A is negatively correlated with the occurrence of B, means the occurrence likely leads to the absence of the other one. lift A,B =
What are the types of lifts?
Types of Lifts
- 1 Introduction.
- 2 Platform lifts.
- 3 Passenger lifts.
- 4 Glass lifts.
- 5 Service lifts. 5.1 Dumb waiters. 5.2 Trolley lifts.
- 6 Disabled access lifts. 6.1 Stair lifts. 6.2 Step lifts. 6.3 Passenger lift.
- 7 Evacuation lift.
- 8 Firefighting lift.
How many storeys before you need a lift?
It is essential to install a lift in most commercial buildings that have two or more floors. Not only does a lift add value by speeding up the movement of people up and down the building, it also helps the building owner to meet the regulatory requirements on accessibility.
What is confidence in data mining?
The confidence of an association rule is a percentage value that shows how frequently the rule head occurs among all the groups containing the rule body. The confidence value indicates how reliable this rule is. You set minimum confidence as part of defining mining settings.