一种基于压缩前缀树的频繁模式挖掘算法
Computer Engineering & Science(2009)
Abstract
针对FP-growth算法存在动态维护复杂、在挖掘过程中需要递归地创建大量的条件频繁模式树,导致时空效率不高等不足,本算法在压缩前缀树的基础上,通过调整树中节点信息和节点链,采用深度优先的策略挖掘频繁模式,无需任何附加的数据结构,极大地减少了系统资源的消耗,减少树的规模和遍历次数,挖掘效率大大提高。
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Key words
compressed prefix-tree,frequent pattern,frequent itermset
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