Note | Normal Equation

Overview Normal Equation is a method in parallel with gradient descent algorithm to minimize the cost function J. ...

April 1, 2021 路 2 min 路 233 words 路 Wenbo

Note | Polynomial Regression and Feature Scaling

Linear Regression with multiple variables It is common to consider more than one features when making a prediction. For example when predicting the price of a house: ...

April 1, 2021 路 2 min 路 314 words 路 Wenbo

Note | Batch Gradient Descent Algorithm

Overview In the linear regression prediction, we want to find a hypothesis function to predict the future outcome. The method in supervised learning is by using loads of training data sets and a learning algorithm to let the result of the hypothesis function close to the real value as possible as we can. ...

March 14, 2021 路 5 min 路 873 words 路 Wenbo