Classifying and clustering in negative databases
Ran LIU , Wenjian LUO , Lihua YUE
Front. Comput. Sci. ›› 2013, Vol. 7 ›› Issue (6) : 864 -874.
Classifying and clustering in negative databases
Recently, negative databases (NDBs) are proposed for privacy protection. Similar to the traditional databases, some basic operations could be conducted over the NDBs, such as select, intersection, update, delete and so on. However, both classifying and clustering in negative databases have not yet been studied. Therefore, two algorithms, i.e., a k nearest neighbor (kNN) classification algorithm and a k-means clustering algorithm in NDBs, are proposed in this paper, respectively. The core of these two algorithms is a novel method for estimating the Hamming distance between a binary string and an NDB. Experimental results demonstrate that classifying and clustering in NDBs are promising.
negative databases / classification / clustering / k nearest neighbor / k-means / hamming distance
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Higher Education Press and Springer-Verlag Berlin Heidelberg
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