Search Techniques for Fourier-Based Learning

Adam Drake, Dan Ventura

Fourier-based learning algorithms rely on being able to efficiently find the large coefficients of a function's spectral representation. In this paper, we introduce and analyze techniques for finding large coefficients. We show how a previously introduced search technique can be generalized from the Boolean case to the real-valued case, and we apply it in branch-and-bound and beam search algorithms that have significant advantages over the best-first algorithm in which the technique was originally introduced.

Subjects: 12. Machine Learning and Discovery; 15.7 Search

Submitted: May 2, 2008


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