@smilesun Incremental learning with neural networks in R is very slow.
I made some benchmarking experiments, mxnet is twice as fast as keras but still very slow.
Not sure what we can do about this?

https://github.com/compstat-lmu/papers_2017_reinforcelearn_software/blob/da9659e583583d3b80d8da5d37f4bf3c876b6f8c/examples/online_learning_with_neural_networks.R#L133-L139