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rrobukef

540 karma · joined February 12, 2016

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rrobukef··on Germany transforms former coal mines into Europe's largest lake landscape
Up to evaporation and vegetation evaporation changes. Don't lakes have an enormous surface?
rrobukef··on LRU is harder to beat than the KV-cache papers suggest
While AI was clearly used to generate and structure a first draft, I say it has been extensively rewritten by the author. In my experience, AI tends to avoid the first person, instead writing from a passive observer or even using sentences without verbs. The length of the sentences is also more natural. AI had trouble with bind-words in an argument. It just states separate facts and assumes because they are stated in order you have a reasoning. I'm not seeing that here.

Of course, idioms are preserved, and not everything is rewritten.

I quite ok with this style, it isn't grating. I expect this will be a style we'll see more of in science.

rrobukef··on OpenAI have no mathematicians capable of understanding what they put out
It wouldn't surprise me that even if you opt-out they still train on 'de-identified' chat data. After all, facts cannot be copyrighted and one cannot be sued for unethical behaviour.
rrobukef··on ADHD and Methylphenidate Use in Prepubertal Children and Adult BMI and Height
The fact that the height of adult males with ADHD is greater than that of males without ADHD (first figure/graphs, G & H) should indicate that there is no causative link that the medication has an impact. For females, the average does not show this, but if you look carefully, the variation is bigger. The same selection bias is possible in this case.

Instead, to me it looks like there is selection bias going on. Shorter males are more likely to get MPH prescribed is an equally valid explanation.

Luckily, the conclusion makes no assertions about height either, nor does the paper make conclusions about any causative relation.

rrobukef··on Hyundai is now delaying its EV battery plant that was raided by ICE
An ESTA is not only for Tourism.
rrobukef··on Leaked Ice document shows worker detained in Hyundai raid had valid visa
That is not what the article says.
rrobukef··on Big agriculture mislead the public about the benefits of biofuels
I disagree, wood pellets are more expensive than oil for energy, especially if only counting the production cost of oil w/o the tax. So even the first time an old forest is cut, when the land changes, it already displaces oil use. At greater expense even, so demand would be reduce the amount energy produced further.

Furthermore Europe can also choose to replant non-forest land or replant permanently afterwards.

rrobukef··on New study finds link between green spaces and police violence
Per abstract, the effect is stronger in poor regions (precisely "across five levels of social deprivation"). They did control for affluence.
rrobukef··on The New York Times Has Spent $10.8M in Its Legal Battle with OpenAI So Far
Yes, and libraries pay for that access. They also don't obfuscate the origin or remove the advertising. Don't equate libraries with what OpenAI does.
rrobukef··on Nearly 50% of researchers quit science within a decade, huge study reveals
Quitting implies there is a problem, the authors even state so. But is it really¹? I'm quite sure "Over 90% of college students quit college within a decade". They graduate.

Should science grow exponentially? Is there no value in a PhD graduate that isn't a researcher? Get everyone a PhD and chain them to a desk for research!

(1) Except for gender (and others not in scope) where past discrimination is still felt.

rrobukef··on Nearly 50% of researchers quit science within a decade, huge study reveals
Every tenured professor is expected to have at very least one PhD student. A PhD takes on average less than 8 years and a tenure more than 20.

Though I think a more reasonable replacement rate is 10+ PhD graduates per professor. I do not think this problematic somehow, unlike what overproduction implies.

rrobukef··on Beastie Boys dismantled their gold record plaque
Don't you scenario-test your processes? /s
rrobukef··on Greenwich schools to ban most cellphones, Apple Watches, Fitbits and more
Pacemaker and hearing aids as well, eventually a temp-teacher will cause a right mess.
rrobukef··on Someone's been messing with Python's floating point subnormals
Wouldn't the compiler optimize (x-y)!=0 to x!=y? Seems like a good optimisation to me and one probably in accordance to the C standard.

It would also make it impossible to have a decent non-zero check for

if ((x-y)!=0) progress((x-t)/(x-y));

rrobukef··on Show HN: Hyve Tile, a puzzle game but I can't solve it
It is a neat game. With a bit of trying you can find some patterns:

* Every tile has two orientations 0 and 180 degrees which allows to cut a lot of possibilities for small fields. * Three tiles can be flipped together, meaning if you have one or two tiles unsolved, your idea won't work out. * Large fields have more solutions.

Sadly I found some bugs:

* World generation does not work correctly: there is an unmovable field (nice idea!) but during generation it gets moved. This makes some puzzles unsolvable. The randomizer should ignore this field. * The undo function has some issues undoing the wrong move or skipping a move. Fully undoing a puzzle does not always result in a solution. If this happens while you're playing you get locked.

rrobukef··on Judge dismisses DMCA copyright claim in GitHub Copilot suit
They are trained to duplicate, we just hope they do so by abstracting patterns. Various techniques stack the deck to make it difficult to memorize everything but it still happens easily, especially for replicated knowledge.

"You train them by comparing the output to the original." ->

You train neural networks by producing output for known input, comparing the output with a cost-function to the expected output, and updating your system towards minimizing the cost, repeatedly, until it stops improving or you tire of waiting. Cost functions must have a minimal value when the output matches exactly the expected to work mathematically. Engineering-wise you can possibly fudge things and they probably do so ... now.

I don't agree with your critiques. It isn't an oversimplification, published code literally works as stated.

rrobukef··on 'Underwater bicycle' propels swimmers forward at superhuman speed
Imagine how fast Phelps could swim with this!
rrobukef··on A confusing probability question: Red and green balls in an urn
You have an urn of 50 red and 50 green balls. Roll a die and add a red ball for every pip. What is the probability of the next ball you take being red?

I say both can be a question in Statistics I where you calculate probabilities based on combinations.

So I'll say it depends on the level of education for how the question gets interpreted and saying those who never took Bayesian reasoning and consider n unknown are wrong gets elitist.

rrobukef··on A confusing probability question: Red and green balls in an urn
So? There's plenty of problem statements with irrelevant data. Children are also getting taught to determine which is relevant in class.

But also, it's not irrelevant because for two cases the probability stays equal. Calculating the exact chance is still an interesting problem and it could have been dumbed down for twitter only.

rrobukef··on A confusing probability question: Red and green balls in an urn
Watch out. Because your bits are indexed you have a different problem than before. The first red ball does not give you a significant bit.

Instead: Make a sample and now you know that it is greater than a random number unknown to you. Can you derive any knowledge about your next sample?

rrobukef··on The Naz.API Credential Stuffing List
OIDC/oAuth seems like the solution: make it somebody else's problem. But OIDC tokens can be stolen, they can change domains because of misconfiguration or bad redirect urls.
rrobukef··on You can't do that because I hate you
Because you may have meant --f=oo or -f -o -o, both of which are standard unix interpretations of single-dash multi-character flags (e.g. ls, ssh). Or maybe the newest version added the -foo flag.

And if you've got something like 'sed' overwriting the input file (-i), it'd better make sure the flags are exactly as documented.

rrobukef··on Ousted propaganda scholar accuses Harvard of bowing to Meta
The sidelining is to show damages to her reputation etc. Page 50 or so starts the description alleging how the administration and the dean gutted her department by blocking, reallocating funds, stopping hiring, and refusing to extend contracts when funds are available.
rrobukef··on We caught technicians snooping on our personal devices
Minimum wage in canada in '99 was +-9$. Did he work 6 hours per week at 50% tax burden?
rrobukef··on Petition to stop France from forcing browsers like Firefox to censor websites
Please just make the block-list a plain-text human-readable file. That way I can update the file when a new torrent website is convicted and black-listed.
rrobukef··on PSA: Intel Graphics Drivers Now Collect Telemetry by Default
Unless you have a contract stating the non-collection of PII, the you can wash your hands. OTOH, it's just as easy to be willfully blind about that.
rrobukef··on Grokking AVL and RAVL Trees
In the case of 3 with children 1 and 5 and 5 with children 4 and 6. 3 and 5 have two nodes. If you add 7 as a child of 6, the tree is unbalanced. This is not one of the cases shown.
rrobukef··on Grokking AVL and RAVL Trees
All examples rotate a node with a single child, what about the case where you have two children?
rrobukef··on Functions are vectors
The author lives in a context of real calculus, as such he declares that the field from the second section onwards will be reals. The functions over the field of booleans can be equally interesting including the Fourier transformation (multiplication in n log n, iirc)! But they are less intuitive and less known.
rrobukef··on Functions are vectors
The article is some summary of a book with chapters. At some point they limit the space to the subspace of functions periodic over (b-a) and change the basis (with proof) from dirac delta to sines of frequency 2pi*k/(b-a) [with k in N]. In this subspace all functions have Fourier transformations.
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