Spyke
discuss.tchncs.de

Its about a certain form of reinforced learning, called Temporal Difference Learning:

https://inria.hal.science/hal-00840470/document at page 11.

The calculation is called simple because it follows directly from the definitions above. Simple means more like "follows directly from definition without fancy math tricks", not " everyone who can read could solve this in 10 minutes".

I think this is also mostly math related, not physics?

I had a good laugh anyway. Good meme

105

We've got the time dependent polar Schrödinger equation any time we want to pull out a ridiculous looking equation in pre-graduate level physics.

12

Reinforcement learning is a machine learning (ML) technique (“AI” in layman terms) for optimizing neural networks and other types of non-linear models.

As far as ML math goes, this is fairly tame. It looks complicated, but is spelled out clearly in the paper. A lot of these kind of theoretical papers — things that would get published in Automatica — are going to lean very heavy on math.

Source: PhD in Computer Science with dissertation using neural networks.

1

Even worse are the ones that go super slow.

And now we pluck the 3rd string in the 5th fret with our thumb. Bum

The next step is to release the string and move over to...

5

I work in documentation. We aren't allowed to use words like "simple" or "easy" precisely for this reason.

42
lemmy.world

"We can trivially show that...'

Turns out, after a page of algebra, it wasn't "trivial".

34

When they say "It is obvious", they mean it is an exercise may take hours. At least it does not take days!

9

Yep. There's no rule, it's only variable substitution.

It's a really large substitution, touching several places and etc, but it's still simply variable substitution.

11
Trailreply
lemmy.world

Yeah I'd rather have Kanji instead. You can better attach meaning to variables this way!

2

That's what my son's homework from university looks like. I've done the same stuff about 35 years ago, but as I never used advanced algebra and analysis for my job, I've basically forgotten most of it.

At least I know roughly what my son is talking about. My wife (language teacher of German and English) is completly lost.

20
Cap
kbin.melroy.org

My Casio watch calculator has none of those symbols so I don't think it is so simple.

17

My calc professor would say that stuff and be absolutely giddy despite rows of barely adults with confused faces looking at him.

17

Whoever wrote that, could have taught law school with that kind of irony.

(“Brief” my ass.)

15
slrpnk.net

I think it says "simple" as due to not discourage the reader, 'cause it's probably a simple substitution in context which just looks complicated at first glance.

11
A_Areply
lemmy.world

[rant] . All authors that often say things like : "we can simply do this or that" ... for me, is dismissive humble bragging. And, if they really wanted to encourage readers they would say : "in the following equation we used substitution" ... something descriptive.

Every time we study a new subject it is always difficult at first and seeing someone bragging, saying it is simple for them, is never encouraging.

5

You reached the end