Optimizer implementation

[kaushikkanetkar]

Hello,

Ngraph has the Stochastic, GDM, Adam optimizers implemented. Any plans to include others optimizers? Rather, would you be interested in a pull request for Adagrad? I needed Adagrad, so I have implemented that one.

Thanks,
Kaushik

[binarybana]

Hi @kaushikkanetkar. Yes, we'd be interested in a pull request. @tyler-nervana @zach-nervana can help review.