Mamdouh Refaat
Chief data scientist at Altair
Expertise: Data science
Education: University of Toronto

Dr. Mamdouh Refaat is the chief data scientist at Altair. He has more than 20 years of experience  in predictive analytics and data mining, and holds a Ph.D. in engineering from the University of Toronto.

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A data scientist works on a laptop with a representation of data analytics
Overfitting is when a machine learning model performs well with its training data but performs poorly with new data. Here’s an in-depth review of what can lead to overfitting, how it differs from underfitting and methods for detecting and avoiding it.
A data scientists is giving a presentation.
Data science will always need human cognition, analytical and discernment skills.