Talk:Gradient descent

Needs more information

This needs a description, purpose and preferably, a given function to solve for so that different implementations can be compared. Changed to draft status until that is supplied. --Thundergnat (talk) 12:30, 1 July 2019 (UTC)

Luckily, I managed to find a freely available book excerpt (from Google books) which contained the C# code from which the first Typescript example had been translated together with some explanation of what was being done here.

I've therefore added a rudimentary task description and a Go translation to start the ball rolling. --PureFox (talk) 17:48, 8 July 2019 (UTC)

The differences between the results from the different samples is worrying - can it really be due to minor differences in the different languages' sqrt and exp functions? How much accuracy should be expected (is it worth printing 16 digits)? It looks like the answer is somewhere around 0.107, -1.22?

How was the initial guess derived - if the initial guess is changed, the results are different.

I tried a varient using 32 bit floats instead of 64 bit and the results are similar (but different, of course). I also found that (with 32 bit) delG can become 0 before b is set to alpha / delG - this presumanbly should be tested for? --Tigerofdarkness (talk) 19:07, 2 September 2020 (UTC)

promoted from draft?

I thought it was normal for a task to be a draft task until at least four (or so) examples have been entered, and also wait a week or so before promoting it.   I know there are no hard and fast rules.     -- Gerard Schildberger (talk) 19:21, 1 July 2019 (UTC)

In general, I wait for a minimum of 3 months and 20 implementations before I promote one of my tasks out of draft. That way there is plenty of opportunity for discussion and tweaks if necessary. As far as I'm concerned, this doesn't even rise to the level of a draft yet, let alone a full task. Reverted back to draft (again). --Thundergnat (talk) 20:57, 1 July 2019 (UTC)