The RWA model is described in equations (7) of this paper: https://arxiv.org/pdf/1703.01253.pdf https://arxiv.org/pdf/1703.01253.pdf I think you will see that

The RWA model is described in equations (7) of this paper: https://arxiv.org/pdf/1703.01253.pdf https://arxiv.org/pdf/1703.01253.pdf I think you will see that the cost per training set is just as cheap if not cheaper than a LSTM model. On my machine, the RWA model completes each training step faster than a LSTM model. I don't know if that will hold for GPUs.