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0 pointsjszymborski2y ago0 comments

The same reason why you might want to use Keras if you use any of the other backends. They operate at different levels.

Keras is a higher-level API. It means that you can prototype architectures quickly and you don't have to write a training loop. It's also really easy to extend.

I currently use PyTorch Lightning to avoid having to write tonnes of boilerplate code, but I've been looking for a way to leave it for ages as I'm not a huge fan of the direction of the product. Keras seems like it might be the answer for me.

0 comments

p1esk2y ago

What’s so hard about writing a training loop?

rasmus16102y ago

nothing is. but to write a basic training loop with proper logging etc. from scratch every time you want to train a basic neural net classifier seems inefficient to me. There should be a framework for it where you can just plug in your model and your data and it trains it in a supervised fashion. That's what fast.ai or keras are doing.

p1esk2y ago

You only need to write a training loop function once. Then you can just pass to it a model, dataloader, etc, just like you would if you used a training loop written by someone else in Keras. The only difference is it would be hidden from you behind layers of wrappers and abstraction, making it harder to modify and debug.

1 more reply

minimaxir2y ago

It's extremely easy to get wrong in subtle ways.

gerash2y ago

do you implement the sort function and the hash map from scratch every time you need them? If not, what's so hard about implementing a sorting algorithm?

j / k navigate · click thread line to collapse

0 pointsjszymborski2y ago0 comments

The same reason why you might want to use Keras if you use any of the other backends. They operate at different levels.

Keras is a higher-level API. It means that you can prototype architectures quickly and you don't have to write a training loop. It's also really easy to extend.

0 comments

p1esk2y ago

What’s so hard about writing a training loop?

rasmus16102y ago

p1esk2y ago

1 more reply

minimaxir2y ago

It's extremely easy to get wrong in subtle ways.

gerash2y ago

do you implement the sort function and the hash map from scratch every time you need them? If not, what's so hard about implementing a sorting algorithm?

j / k navigate · click thread line to collapse