Title
Mining Frequent Patterns by Differential Refinement of Clustered Bitmaps
Abstract
Existing algorithms for mining frequent patterns are facing challenges to handle databases (a) of increasingly large sizes, (b) consisting of variable-length, irregularly-spaced data, and (c) with mixed or even unknown properties. In this paper, we propose a novel self-adaptive algorithm D-CLUB that thoroughly addresses these issues by progressively clustering the database into condensed association bitmaps, applying a differential technique to digest and remove dense patterns, and then mining the remaining tiny bitmaps directly through fast aggregate bit operations. The bitmaps are well organized into rectangular two-dimensional matrices and adaptively refined in regions that necessitate further computation. We show that this approach not only drastically cuts down the original database size but also largely reduces and simplifies the mining computation for a wide variety of datasets and parameters. We compare D-CLUB with various state-of-the-art algorithms and show significant performance improvement in all cases.
Year
Venue
Field
2006
SIAM PROCEEDINGS SERIES
Data mining,Pattern recognition,Computer science,Matrix (mathematics),Artificial intelligence,Bitmap,Cluster analysis,Performance improvement,Computation
DocType
Citations 
PageRank 
Conference
1
0.35
References 
Authors
32
4
Name
Order
Citations
PageRank
Jianwei Li117611.56
Alok N. Choudhary226024.04
Nan Jiang310.35
Wei-keng Liao4109587.98