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Mining Frequent Closed Patterns: CLOSET
- Flist: list of all frequent items in support ascending order
- Flist: d-a-f-e-c
- Divide search space
- Patterns having d
- Patterns having d but no a, etc.
- Find frequent closed pattern recursively
- Every transaction having d also has cfa → cfad is a frequent closed pattern
- J. Pei, J. Han & R. Mao. “CLOSET: An Efficient Algorithm for Mining Frequent Closed Itemsets", DMKD'00.
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