Constellations and the Unsupervised Learning of Graphs

author: Francisco Escolano, Department of Science of the Computation and Artificial Intelligence, University of Alicante
published: July 12, 2007,   recorded: June 2007,   views: 3552

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Description

In this paper, we propose a novel method for the unsupervised clustering of graphs in the context of the constellation approach to object recognition. Such method is an EM central clustering algorithm which builds prototypical graphs on the basis of fast matching with graph transformations. Our experiments, both with random graphs and in realistic situations (visual localization), show that our prototypes improve the set median graphs and also the prototypes derived from our previous incremental method. We also discuss how the method scales with a growing number of images.

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