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What is Overfitting/Underfitting

Chapter 102
Encyclopedia of Business Analytics and Optimization
Overfitting occurs when excellent performance is seen in training data, but poor performance is seen in test data. Underfitting occurs when the model is too simple in which poor performance is seen in both training and test data.
Published in Chapter:
High-Dimensional Statistical and Data Mining Techniques
Gokmen Zararsiz (Hacettepe University Ankara, Turkey)
Copyright: © 2014 |Pages: 14
DOI: 10.4018/978-1-4666-5202-6.ch102
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