**Daily update | 25 August, 2022**

# StackExchange

#### Why do we need regularization for linear least squares given that a line is the simplest model possible?

**Source:** stats**Views:** 460**Score:** 8**Tags:** regression regularization linear

#### Do neural networks create a separating hyperplane?

**Source:** stats**Views:** 681**Score:** 4**Tags:** neural-networks

#### Efficient computation of ridge/lasso regression

**Source:** stats**Views:** 16**Score:** 2**Tags:** lasso ridge-regression

#### How to find PCA solution using matrix derivatives?

**Source:** stats**Views:** 27**Score:** 2**Tags:** pca optimization

#### Why do we need a smaller sample size to detect a smaller proportion?

**Source:** stats**Views:** 33**Score:** 2**Tags:** statistical-power proportion intuition