What embodies only retraining the last layer of our mobilenet model?And how?

[SMZCC]

Dear wagonhelm

I'm glad to read your tutorial ,however I can't understand how can I change the net's last layer :

• for example : the net previously has 20 classes , if I only have two classes: true or false ,what will I do ?
• And in this way how can I make the label into a TFRecord file ? (PS: if the label is True ,then the label has
  a bounding box, while the label is false , it doesn't have a bounding box)

Thanks with best wishes