This repository contains a PyTorch MFN implementation and code to perform & reproduce experiments from the ICLR 2021 paper Multiplicative Filter Networks by Rizal Fathony, Anit Kumar Sahu, Devin Willmott, and J. Zico Kolter.

• pytorch 1.7.0
• torchvision 0.8.1
• numpy 1.18.1
• pillow 6.2.1
• scikit-image 0.16.2

The file mfn/mfn.py contains implementations of our two instantiations of multiplicative filter networks: FourierNet (Section 3.1) and GaborNet (Section 3.2). It also contains an MFN base class into which any filter may be plugged in (see documentation for details).

The experiments directory contains scripts that correspond to experiments from the paper. Currently, this has:

• the cameraman image representation experiment from Section 4.1 (image_rep.py), and
• the cat video representation experiment from Section 4.1 (video_rep.py); see the paper supplement for details on the particular video used

Scripts to reproduce more experiments from the paper will be added soon!

"Multiplicative Filter Networks" is open-sourced under the AGPL-3.0 license. See the LICENSE file for details.