Chapter 7 Logistic regression

Wouldnt suggest linear as classification algorithm

image.png
image.png
image.png

Hypothesis assumption behind logistic regression

image.png
image.png

Decision Boundary (a property of the hypothesis determined by parameters vectors)

image.png
image.png
Higher polynomial will get more complex decision boundary.png

Cost function

image.png
image.png

• convex optimization

Simpler cost function

image.png
image.png
image.png