Mercer kernel-based clustering in feature space
Girolami, M.
Neural Networks, IEEE Transactions on
Volume 13, Issue 3, May 2002 Page(s):780 - 784
Digital Object Identifier 10.1109/TNN.2002.1000150
Summary:The article presents a method for both the unsupervised
partitioning of a sample of data and the estimation of the possible
number of inherent clusters which generate the data. This work exploits
the notion that performing a nonlinear data transformation into some
high dimensional feature space increases the probability of the linear
separability of the patterns within the transformed space and therefore
simplifies the associated data structure. It is shown that the
eigenvectors of a kernel matrix which defines the implicit mapping
provides a means to estimate the number of clusters inherent within the
data and a computationally simple iterative procedure is presented for
the subsequent feature space partitioning of the data
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