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2 points by axelr 2810 days ago | link | parent

Also, compare this with neural networks http://playground.tensorflow.org on a spiral dataset.


2 points by tfturing 2809 days ago | link

Thanks axelr. Perhaps you could have a blog post in the future on how you made the GB playground using TF playground? It would be really helpful for people learning and teaching concepts on machine learning!

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2 points by axelr 2809 days ago | link

Hi, I wasn't using tensorflow demo code - it is too demo-specific and written in typescript (which is nice, but ...).

As of programming, I coded gradient boosting in an hour or so - as I've done that many times before in python, this was an easy part. Later ~2 hours were spent on adding parameters / features to GB.

Most of the time was spent on proper visualization (different plotting libs are slow or too complicated, so I finished up with doing everything with canvas using some tricks), some code optimization and correct layout + support of mobile devices (so demo should be working on most mobile devices). And this took a week or even more.

To sum up, time is usually spent on something ridiculous (wrong event handling, wrong plotting, wrong layout), not on math or machine learning :)

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