The Selective G-Bispectrum and its Inversion: Applications to G-Invariant Networks

Mataigne, S., Mathe, J., Sanborn, S., Hillar, C., Miolane, N.

We present the selective G-Bispectrum, a computationally efficient alternative to the full G-Bispectrum with O(|G|) complexity, which retains key invariance properties for group actions and enhances neural network performance in terms of accuracy, robustness, and speed.