3.2k citations · 6.9k across the 41 of their papers we have counts for
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math.RT2007★ 5 cited
The skew spectrum of functions on finite groups and their homogeneous spaces
Risi Kondor
Whenever we have a group acting on a class of functions by translation, the bispectrum offers a principled and lossless way of representing such functions invariant to the action.…
cs.CV2007★ 20 cited
A novel set of rotationally and translationally invariant features for images based on the non-commutative bispectrum
Risi Kondor
We propose a new set of rotationally and translationally invariant features for image or pattern recognition and classification. The new features are cubic polynomials in the pixel…