| ALGORITHM: gap-Bide (SDB, _session, min_sup_les, |
| min_sup, M, N) |
| INPUT: (1) SDB: An input sequence database with time, (2) |
| _session: the time user session, (3) min_sup_les: the |
| minimum support threshold of getting large event set, (4) |
| min_sup: the minimum support threshold of getting closed |
| sequential pattern, (5) and : the parame-ters of a gap |
| constraint. |
| OUTPUT: the set of gap-constrained closed sequential patterns. |
| (1)call getLargeEventSet (SDB, _session, min_sup_les); |
| (2)select sequence from input database only contained in LES |
| (3)find the set of length-1 frequent sequential patterns, 1; |
| (4)for each item in 1 |
| (5)call patternGrowth(); |
| (6)return |