Dr. 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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Mamdouh Refaat Mamdouh Refaat
Updated on February 12, 2025

What Is Overfitting?

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.

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Mamdouh Refaat Mamdouh Refaat
Updated on June 03, 2024

I’m a Data Scientist. Low- and No-Code Tools Don’t Threaten My Job.

Data science will always need human cognition, analytical and discernment skills.

Image: Shutterstock / Built In