ACM SIGMOD Anthology VLDB dblp.uni-trier.de

WaveCluster: A Wavelet Based Clustering Approach for Spatial Data in Very Large Databases.

Gholamhosein Sheikholeslami, Surojit Chatterjee, Aidong Zhang: WaveCluster: A Wavelet Based Clustering Approach for Spatial Data in Very Large Databases. VLDB J. 8(3-4): 289-304(2000)
@article{DBLP:journals/vldb/SheikholeslamiCZ00,
  author    = {Gholamhosein Sheikholeslami and
               Surojit Chatterjee and
               Aidong Zhang},
  title     = {WaveCluster: A Wavelet Based Clustering Approach for Spatial
               Data in Very Large Databases},
  journal   = {VLDB J.},
  volume    = {8},
  number    = {3-4},
  year      = {2000},
  pages     = {289-304},
  ee        = {db/journals/vldb/SheikholeslamiCZ00.html},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

Many applications require the management of spatial data in a multidimensional feature space. Clustering large spatial databases is an important problem, which tries to find the densely populated regions in the feature space to be used in data mining, knowledge discovery, or efficient information retrieval. A good clustering approach should be efficient and detect clusters of arbitrary shape. It must be insensitive to the noise (outliers) and the order of input data. We propose WaveCluster, a novel clustering approach based on wavelet transforms, which satisfies all the above requirements. Using the multiresolution property of wavelet transforms, we can effectively identify arbitrarily shaped clusters at different degrees of detail. We also demonstrate that WaveCluster is highly efficient in terms of time complexity. Experimental results on very large datasets are presented, which show the efficiency and effectiveness of the proposed approach compared to the other recent clustering methods.

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