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searching for Fourier operator 3 found (9 total)

Ridge regression (3,902 words) [view diff] exact match in snippet view article find links to article

cases, high-pass operators (e.g., a difference operator or a weighted Fourier operator) may be used to enforce smoothness if the underlying vector is believed

Mehler kernel (2,593 words) [view diff] exact match in snippet view article find links to article

} in harmonic analysis and signal processing, they diagonalize the Fourier operator, F [ f ] ( y ) = ∫ d x f ( x ) ∑ n ≥ 0 ( − i ) n ψ n ( x ) ψ n ( y

Fourier transform (21,038 words) [view diff] exact match in snippet view article find links to article

functions ψn provides a resolution of the identity they diagonalize the Fourier operator, i.e. the Fourier transform can be represented by such a sum of terms