[oxxoxoxooo]

Prior art:

Binarized Neural Networks: Training Deep Neural Networks with Weights and Activations Constrained to +1 or -1

https://arxiv.org/abs/1602.02830

Ternary Neural Networks for Resource-Efficient AI Applications

https://arxiv.org/abs/1609.00222

[kandu]

Also: training neural networks by turning connections on and off, or by just flipping the sign of the weights: https://arxiv.org/abs/2006.16627