Programming Assignment: Logistic Regression with a Neural Network Mindset

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
1

Hi All:

I wanted to check on the optional part of the second week lab. I checked with one of my image and it classified as “cat”, but it shouldn’t have.
Wanted to confirm, if I am only one facing this issue.

Thank you,
Ritika

2

You’re definitely not alone on that. It turns out that Logistic Regression is not as powerful as real “neural networks”, but we’ll do a similar thing in Week 4 and find that even the more powerful model we develop there also doesn’t do so well with new images. The problem is that because of the resource constraints of the environment here, we are forced to use a very small training set and that means we don’t get a very “general” model.

Here’s another thread of someone who noticed the same issue. Well, in that case, the picture is obviously a cat, but the algorithm says no.

Here’s another image that is pretty strange that gets recognized as a “cat”.

3

Thank you so much, Paul. This helps. :slight_smile: