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Issue:
Sequential Pattern Mining Based on Concept
Author(s):
WANG Yu
,
ZHOU Li-juan
,
DUAN Lu-ping
Pages:
49
-
51,69
Year:
2007
Issue:
7
Journal:
TECHNIQUES OF AUTOMATION AND APPLICATIONS
Keyword:
序列模式
;
概念
;
搜索空间
;
数据挖掘
;
Abstract:
现有的序列模式算法大都需要频繁访问数据库,效率低.本文提出了一种只需访问数据库一次的基于概念的序列模式算法SPC(Sequential Pattern Algorithm Based on Concept).它利用概念来保存信息,通过划分搜索空间得到概念,并在保证数据挖掘结果正确的前提下采用项有序,合并等价子空间和舍弃无效子空间等手段减少搜索空间数量,提高了效率.
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