Questions Companies

14.   What is overfitting? How to detect and avoid overfitting?

Machine Learning Basics

Easy

Amazon IBM Microsoft

16.   What loss functions can be used for regression? Which one is better for outliers?

Machine Learning Basics

Medium

Amazon Microsoft

17.   What is the 0-1 loss function? Why can't the 0-1 loss function or classification error be used as a loss function for optimizing a deep neural network?

Machine Learning Basics, Deep Learning Basics

Easy

Amazon

18.   Explain K Nearest Neighbor classification Algorithm in detail? Implement KNN from scratch without using scikit-learn.

Machine Learning Basics, Deep Learning Basics

Medium

Amazon

19.   What is pooling? How does pooling help with Convolutional Neural Networks?

Deep Learning Basics, Computer Vision

Medium

Amazon

20.   What is Transfer Learning? In what cases using transfer learning can be helpful?

Deep Learning Basics, Computer Vision

Easy

Adobe Apple Amazon IBM

25.   What is Linear Regression? What are the assumptions of a Linear Regression Model?

Machine Learning Basics

Medium

Amazon Microsoft

26.   What is Regularization? When do we need it?

Machine Learning Basics, Deep Learning Basics

Easy

Amazon Microsoft Netflix

27.   What is Ensemble Learning? How many types of ensemble methods are there?

Machine Learning Basics

Medium

Amazon

28.   What is ROC Curve? What is the interpretation of an ROC area under the curve? What is the difference between the PR(Precision-Recall) curve and the ROC curve?

Machine Learning Basics, Deep Learning Basics

Medium

Amazon Microsoft