Excellent Session on "The 7 Reasons Most Machine Learning Funds Fail Marcos Lopez de Prado from QuantCon 2018". I believe its a must listen for anyone wanting to use Machine learning in Quantopian. Looks like I'm doing all the 7 mistakes, no wonder my efforts are not yielding that great a result. Attaching the link to the video in the Quantopian youtube channel link
Thought will be useful for someone else who hadn't seen this yet