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ruborcalor

60 karma · joined March 9, 2020

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ruborcalor··on I hired 5 people to sit behind me and make me productive for a month
How do you think this compares to coworking?
ruborcalor··on Show HN: Turn Memories into Art with neural-style
Hello HN!

The goal of Artifai is to help people generate art from photos. I had a problem: My walls were bare. I wanted to decorate them with memories, but I wanted the decorations to be artistic at the same time.

This lead me to discover neural-style, an algorithm that takes two images as input, and copies the style from one onto the other while retaining its content. Neural-style lets you take a meaningful photo and turn it into awesome art! There were several implementations available on Github, but I didn't see a way for non-technical users to easily use it and have the result shipped to their home. And so I began building Artifai with a group of friends; We are a group of university students and this was our first fullstack app!

You can read more about the technical details here: https://docs.google.com/document/d/1Q63JH2CnRWZbhO7oDHEeAWJT...

Thanks for checking it out and let us know if you have any feedback! :)

ruborcalor··on Building an AI to predict human age from a blood sample
Wow very cool startup; wish you guys the best of luck!
ruborcalor··on Building an AI to predict human age from a blood sample
Definitely a good tip. I'll try not to make that mistake again.

You can now find the jupyter notebook code here: https://github.com/Ruborcalor/Age-Prediction-Via-Blood-Sampl...

ruborcalor··on Building an AI to predict human age from a blood sample
what a meme haha :)

after many similar comments I plan on implementing a simpler model and seeing how it compares

ruborcalor··on Building an AI to predict human age from a blood sample
Yeah i'd agree that ML hype is too real I guess I'm part of the problem

It's more fun to use a neural net :) but after many similar comments I plan on implementing a simpler approach and seeing how it compares

ruborcalor··on Building an AI to predict human age from a blood sample
Wow very cool tool! I didn't know about this somehow. Thanks for sharing. Cool that you've tried it on yourself.
ruborcalor··on Building an AI to predict human age from a blood sample
What would you prefer to call it? Machine learning?
ruborcalor··on Building an AI to predict human age from a blood sample
yes valid point haha. It's more fun to use a neural net :) but after many similar comments I plan on implementing a simpler approach and seeing how it compares
ruborcalor··on Building an AI to predict human age from a blood sample
Thanks I really appreciate it.

I'll try and get back to you with the performance of k-folds validation and shuffling.

I don't think it can be learning the order or samples because the train and test data sets are separated very early on. If it were learning order or samples of the training set it would have to perform very poorly on the test set.

ruborcalor··on Building an AI to predict human age from a blood sample
Yes I agree you want number of samples to be greater than number of features. This is why the number of features were reduced from over 400,000 to 25. After this reduction the number of features is less than the number of samples (~700).

Honestly I didn't prioritize hyperparameter tuning enough. I pretty much went with one of the first models I identified.

Could you elaborate on the idea of not capturing dependent features please?

ruborcalor··on Building an AI to predict human age from a blood sample
I'll try out these models and get back to you with their effectiveness.
ruborcalor··on Building an AI to predict human age from a blood sample
I apologize for the confusion, i've since removed this typo.

The data is only split once, before using a correlation test to select the features that the model would be trained on. As far as I can tell there is no data snooping occurring because the data is split into train and test sets before any decision are made.

ruborcalor··on Building an AI to predict human age from a blood sample
Haha yes good point take everything with a grain of salt
ruborcalor··on Building an AI to predict human age from a blood sample
Yes the Horvath Clock seems to be the standard.

Thanks for sharing the book i'll have to sheck it out!

ruborcalor··on Building an AI to predict human age from a blood sample
Interesting point, the idea of transfusing blood from healthy subjects had never occurred to me.

I'm not sure I understand; what was the claim from the startups, and what does the rumor mill say is happening at a low level?

ruborcalor··on Building an AI to predict human age from a blood sample
Haha yeah we better watch out. Another prediction could be that blood tests will become standard when signing up for various forms of insurance.
ruborcalor··on Building an AI to predict human age from a blood sample
The two concepts definitely may be related, but the approach used in this paper doesn't make use of proteins in the blood. Rather it uses the DNA methylation extracted from white blood cells in the blood.

Interesting article thanks for sharing.

ruborcalor··on Building an AI to predict human age from a blood sample
Hey I really appreciate it mate. I'll try and get a baseline linear model going and get back to you with the results.