005. Machine learning W1 05 Model Representation

Linear regression with one variable
Model representation

Supervised Learning
Given the "right answer" for each example in the data.

Regression Problem
Predict real-valued output


Training set




Learning Algorithm







Size of house ->       h         -> Estimated price

x              hypothesis                 (estimated value of y)

h maps from x's to y's


How do we represent h?

Linear regression with one variable.
Univariate linear regression.


Linear regression with one variable
Cost function