AR Mining with Lift ratio: An Example Consider item sets with three items 10.000 transactions contain wipes 8,000 transactions contain wipes and diapers(80%) 220 transactions contain wipes and beer(2.2%) 200 transactions contain wipes, diapers and beer (2%) The complete set of 12 rules is presented in a table long with their confidence, support and lift 16
16 ◼ Consider item sets with three items: ◼ 10,000 transactions contain wipes. ◼ 8,000 transactions contain wipes and diapers (80%). ◼ 220 transactions contain wipes and beer (2.2%). ◼ 200 transactions contain wipes, diapers and beer (2%). ◼ The complete set of 12 rules is presented in a table along with their confidence, support and lift. AR Mining with Lift Ratio : An Example
AR Mining with lift ratio: An example RHS Conf upp f atio(%o Diapers Beer 600 50008.33 2.00 2 Beer Diapers4.00|33338.332.00 3 Diapers Wipes2.0040.0020.001.60 Wipes Diapers4.0080.0020.00_.60 5 Wipes Beer 600 20o.37 0.04 Bee wipes2.000.730.370.04 Diapers Beer 6.00 250 0.42 0.04 ipe Diapers Wipes 200 2.00 1.000.04 beer 9 Beer Diapers4.00909122730.04 wipes 10 Diapers→ Wipes&0.0441.0022.730.04 B eer 11 Wipes Diaper 2.00|200|1.00|0.04 Beer 12 Beer Diapers1.600.670.420.04 wipes
17 LHS RHS Exp Conf (%) Conf (%) Lift Ratio Supp (%) 1 Diapers → Beer 6.00 50.00 8.33 2.00 2 Beer → Diapers 4.00 33.33 8.33 2.00 3 Diapers → Wipes 2.00 40.00 20.00 1.60 4 Wipes → Diapers 4.00 80.00 20.00 1.60 5 Wipes → Beer 6.00 2.20 0.37 0.04 6 Beer → Wipes 2.00 0.73 0.37 0.04 7 Diapers & Wipes → Beer 6.00 2.50 0.42 0.04 8 Diapers & Beer → Wipes 2.00 2.00 1.00 0.04 9 Beer & Wipes → Diapers 4.00 90.91 22.73 0.04 10 Diapers → Wipes & Beer 0.044 1.00 22.73 0.04 11 Wipes → Diapers & Beer 2.00 2.00 1.00 0.04 12 Beer → Diapers & Wipes 1.60 0.67 0.42 0.04 AR Mining with Lift Ratio : An Example