1、2021/7/9BUPT-AI&DM12021/7/9BUPT-AI&DM22021/7/9BUPT-AI&DM32021/7/9BUPT-AI&DM42021/7/9BUPT-AI&DM52021/7/9BUPT-AI&DM62021/7/9BUPT-AI&DM72021/7/9BUPT-AI&DM82021/7/9BUPT-AI&DM9Transaction IDItems Bought2000A,B,C1000A,C4000A,D5000B,E,FCustomerbuys diaperCustomerbuys bothCustomerbuys beer2021/7/9BUPT-AI&DM
2、10Transaction ID Items Bought2000A,B,C1000A,C4000A,D5000B,E,FFrequent Itemset SupportA75%B50%C50%A,C50%Min.support 50%Min.confidence 50%2021/7/9BUPT-AI&DM112021/7/9BUPT-AI&DM12TID Items100 1 3 4200 2 3 5300 1 2 3 5400 2 5Database Ditemset sup.1223334153itemset sup.12233353Scan DC1L1itemset1 21 31 52
3、 32 53 5itemset sup1 211 321 512 322 533 52itemset sup1 322 322 533 52L2C2C2Scan DC3L3itemset2 3 5Scan Ditemset sup2 3 522021/7/9BUPT-AI&DM132021/7/9BUPT-AI&DM142021/7/9BUPT-AI&DM152021/7/9BUPT-AI&DM16Min-support=20%Min-confidence=70%2021/7/9BUPT-AI&DM17Table 3.3 A Subset of the Credit Card Promotio
4、n DatabaseMagazineWatchLife InsuranceCredit CardPromotionPromotionPromotionInsuranceSexYesNoNoNoMaleYesYesYesNoFemaleNoNoNoNoMaleYesYesYesYesMaleYesNoYesNoFemaleNoNoNoNoFemaleYesNoYesYesMaleNoYesNoNoMaleYesNoNoNoMaleYesYesYesNoFemale2021/7/9BUPT-AI&DM18Table 3.4 Single-Item Sets Si ngl eSi ngl e-I t
5、em SetsI tem Sets N um ber of I tem sN um ber of I tem s M agazi ne Prom oti on=Yes 7 W atch Prom oti on=Yes 4 W atch Prom oti on=N o 6 Li fe I nsurance Prom oti on=Yes 5 Li fe I nsurance Prom oti on=N o 5 C redi t C ard I nsurance =N o 8 Sex=M al e 6 Sex=Fem al e 4 Min support=42021/7/9BUPT-AI&DM19
6、Table 3.5 Two-Item SetsTwo-Item SetsNumber of ItemsMagazine Promotion=Yes&Watch Promotion=No4Magazine Promotion=Yes&Life Insurance Promotion=Yes5Magazine Promotion=Yes&Credit Card Insurance=No5Magazine Promotion=Yes&Sex=Male4Watch Promotion=No&Life Insurance Promotion=No4Watch Promotion=No&Credit Ca
7、rd Insurance=No5Watch Promotion=No&Sex=Male4Life Insurance Promotion=No&Credit Card Insurance=No5Life Insurance Promotion=No&Sex=Male4Credit Card Insurance=No&Sex=Male4Credit Card Insurance=No&Sex=Female4Frequent Three-item Sets:2021/7/9BUPT-AI&DM202021/7/9BUPT-AI&DM212021/7/9BUPT-AI&DM222021/7/9BUPT-AI&DM232021/7/9BUPT-AI&DM242021/7/9BUPT-AI&DM25TID Dateitems_bought-T10010/15/99 K,A,D,BT20010/15/99D,A,C,E,BT30010/19/99C,A,B,ET40010/22/99B,A,D2021/7/9BUPT-AI&DM26问题？问题？
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