How does regularization prevent Overfitting?

Related questions

1. What is CNN in deep learning?
2. What does batch size do?
3. Why do we need convolution?
4. What is Softmax layer in CNN?
5. What is 2d convolution layer?
6. How does CNN decide how many layers?
7. What is the difference between CNN and Ann?
8. What is the difference between sigmoid and ReLU?
9. Which is major benefit of reducing batch size?
10. Does cross validation prevent Overfitting?

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22. #restrictions
23. #space