Issue No. 05 - May (2013 vol. 25)
ISSN: 1041-4347
pp: 1191-1195
Costas Panagiotakis , University of Crete, Ierapetra
Georgios Tziritas , University of Crete, Heraklion
ABSTRACT
In this paper, we propose an efficient clustering algorithm that has been applied to the microaggregation problem. The goal is to partition $(N)$ given records into clusters, each of them grouping at least $(K)$ records, so that the sum of the within-partition squared error (SSE) is minimized. We propose a successive Group Selection algorithm that approximately solves the microaggregation problem in $(O(N^2 \log N))$ time, based on sequential Minimization of SSE. Experimental results and comparisons to existing methods with similar computation cost on real and synthetic data sets demonstrate the high performance and robustness of the proposed scheme.
INDEX TERMS
Clustering algorithms, GSM, Vegetation, Indexes, Partitioning algorithms, Loss measurement, Minimization, microaggregation, Clustering, partition
CITATION
Costas Panagiotakis, Georgios Tziritas, "Successive Group Selection for Microaggregation", IEEE Transactions on Knowledge & Data Engineering, vol. 25, no. , pp. 1191-1195, May 2013, doi:10.1109/TKDE.2011.242