Kaggle-Planet: Understanding the Amazon from Space

(Himanshu) #1

Hi @jeremy
How do start with Planet: Understanding the Amazon from Space on Kaggle considering I have limited knowledge on satellite images and have completed Part 1.

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(Jeremy Howard (Admin)) #2

There’s really nothing to know - just download the images and get started using the techniques you learnt! Just use the jpegs, which are standard 3 channel images.

The only difference to what you’ve done already is that these images have multiple labels. So you’ll need to remove any softmax layer, and think a bit about how best to represent the data.

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(Sanchit tanwar) #3

I have been trying to implement various classifiers in pytorch and keras. When I see any implementations online and find the fast ai implementation not only the accuracy is better but there is a huge difference even with the same architecture. So I tried to implement planet amazon from space in pytorch. I tried to replicate most of the things apart from data augmentation and cyclical learning I could from the fast ai version with fbeta score 93.03, The results were very bad. Can anyone help me out with what I am doing wrong.
Links to kaggle kernel:
https://www.kaggle.com/sanchit2843/kernel86f789f32c

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