Abstract: An Online Machine Learning System (OMLS) including an Online Explanation System (OES), updated continuously, configured to provide instance level explanations and model level explanations to a user; an Online Human Expert Feedback System (OEFS), updated continuously, configured to obtain expert instance level feedback and expert model level feedback, for optimization of operation of the OMLS; an Online Machine Learning Engine (OMLE) for incorporating and utilizing one or more machine learning algorithms or models utilizing features to generate a result, and capable of incorporating and utilizing multiple different machine learning algorithms or models, wherein the OMLS is configured to perform continuous online machine learning.