Fourier-Information Duality in the Identity Management Problem
published: Oct. 3, 2011, recorded: September 2011, views: 2781
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We compare two recently proposed approaches for representing probability distributions over the space of permutations in the context of multi-target tracking. We show that these two representations, the Fourier approximation and the information form approximation can both be viewed as low dimensional projections of a true distribution, but with respect to different metrics.We identify the strengths and weaknesses of each approximation, and propose an algorithm for converting between the two forms, allowing for a hybrid approach that draws on the strengths of both representations. We show experimental evidence that there are situations where hybrid algorithms are favorable.
Download slides: ecmlpkdd2011_jiang_fourier_01.pdf (803.7 KB)
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