摘要
挖掘序列模式是数据挖掘的主要内容之一,目前已有许多序列模式模型和相应的挖掘算法。本文讨论了在交易数据库中增加新的交易时,发现序列模式的维护问题,并提出了一种有效的维护算法- 增量更新算法。
Mining sequential patterns is one of the central content in data mining.There have been many models of sequential patterns and algorithms for mining sequential patterns.This paper discusses the problem about maintenance of discovered sequential patterns when new transaction data are added to a transaction database,then proposed an efficient algorithm according to the problem,that is incremental updating algorithm.
出处
《上海第二工业大学学报》
1999年第2期31-36,共6页
Journal of Shanghai Polytechnic University
基金
国家民委自然科研基金
关键词
交易
序列模式
数据挖掘
维护
数据库
挖掘算法
transaction
sequence
support
sequential pattern
original sequence base
updated sequence base