TIKIMYBINIS DAŽNŲ POSEKIŲ PAIEŠKOS ALGORITMAS
PROBABILISTIC ALGORITHM FOR MINING FREQUENT SEQUENCES

Summary/Abstract: Frequent sequence mining in large volume databases is important in many areas, e.g., biological, climate, fi nancial databases. Exact frequent sequence mining algorithms usually read the whole database many times, and if the database is large enough, then frequent sequence mining is very long or requires supercomputers. A new probabilistic algorithm for mining frequent sequences is proposed. It analyzes a random sample of the initial database. The algorithm makes decisions about the initial database according to the random sample analysis results and performs much faster than the exact mining algorithms. The probability of errors made by the probabilistic algorithm is estimated using statistical methods. The algorithm can be used together with the exact frequent sequence mining algorithms.

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