关键词: 闭合模式, 相邻频繁模式段, 模式组合

Abstract: Traditional algorithms for sequential pattern mining may produce lots of redundant patterns when dealing with biological datasets.Closed pattern is preferable to express the function and structure of biology sequence.Biology sequence has its own characters.Based on these characters，the author develop Joined Closed Pattern Segment approach，JCPS，for mining closed patterns of biological sequences.First，the joined closed frequent pattern segments are produced.Then，longer closed frequent patterns can be obtained by combining the above segments，at the same time deleting the unclosed patterns.Through dealing with the real protein family database，it is proved that the algorithm can deal with biology sequence data efficiently.

Key words: closed pattern, joined frequent pattern segment, pattern combination