- keras mnist
- keras layers tutorial
- kutils.py - memory usage functions
- Pandas and Python memory - https://stackoverflow.com/questions/39100971/how-do-i-release-memory-used-by-a-pandas-dataframe
- Pandas for large data - https://www.dataquest.io/blog/pandas-big-data/
- Feather format - https://blog.cloudera.com/blog/2016/03/feather-a-fast-on-disk-format-for-data-frames-for-r-and-python-powered-by-apache-arrow/