Install PySpark on windows

1. Install java and expose JAVA_HOME
2. Install spark and expose SPARK_HOME
3. Install findspark:

Launch jupyter lab and use pyspark in notebook:

Kubernetes Secrets in plain English

Want to get a high level view of kubernetes secrets? Read on...

Back propagation in neural network training

Back propagation fundamental to neural network training. As always, Andrej Karpathy does a fantastic job explaining how it is calculated and applied during neural network training. Check this out!