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Signature features with the visibility transformation
Published 8 Apr 2020 in cs.LG, eess.SP, and stat.ML | (2004.04006v4)
Abstract: In this paper we put the visibility transformation on a clear theoretical footing and show that this transform is able to embed the effect of the absolute position of the data stream into signature features in a unified and efficient way. The generated feature set is particularly useful in pattern recognition tasks, for its simplifying role in allowing the signature feature set to accommodate nonlinear functions of absolute and relative values.
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