basic_cnn (vs basic, tree)

Hi Minjoon,

Nice work on the paper and code!

I have a few questions. Can you explain briefly what the differences between basic, basic_cnn, & tree are? For the results described in your README under single model, were they obtained with basic & default settings?

Lastly, in ```basic_cnn/read_data```, the field ```sorted``` doesn't seem exist, causing an error when accessing ```shared['sorted']```. Do you have any thoughts on how to fix it?

Thanks!
-Thang