Lxr
Lxr on Hacker News
I’m working on
https://www.dragondictionary.com, a Chinese-English dictionary aimed at Chinese learners. I am building it because there’s no good desktop alternative to Pleco at the moment.
The article doesn't explain what is actually going on to produce the second chart, but here is a guess. Assume people have a true ability
x, an estimated ability
y which is
x + some unbiased noise, and a test score
z which is also
x + some unbiased noise. If you take a sample and collect the lowest quartile of test scores
z, then the average of the estimated abilities
y in that group is higher than
z because the
y are produced centered at
x rather than centered at
z. By collecting the lowest quartile of test scores, you didn't just get the dumbest people, you also got the people who happened to perform badly on the test that day. These people may be estimating their ability accurately, in which case the estimate would be higher than their randomly bad performance that day.
This seems like too obvious a mistake to not have been noticed for this long though.
ML is a shiny object with often no discernible ROI but occasionally very large ROI, and companies are understandably nervous about missing out. Spending a small amount to hedge their bets isn't necessarily irrational.
Posted by
Lxr on Friday May 29, 2020 @09:58PM
from the ask-hn dept.
Hi HN,I'm constantly frustrated by the amount of annoying things websites do. Useless cookie and privacy notices, ads disguised as content, use-our-app walls, clickbait designed for "engagement", AMP and so on.I'd like to build something to help users browse the web more efficiently. The closest thing I know of is uBlock Origin with handmade filters e.g....
Posted by
Lxr on Wednesday February 12, 2020 @05:34PM
from the roadsafety.transport.nsw.gov.au dept.
This seems like a better explanation, because the effect is stronger for things that absorb water than for things where the water sits on top.
Posted by
Lxr on Saturday December 07, 2019 @10:08AM
from the mobile.abc.net.au dept.
Similar to 厉害 in Chinese - it often translates as terrible, but mostly used to mean great.
Why use HTML in emails though?
Posted by
Lxr on Saturday August 24, 2019 @12:28AM
from the en.wikipedia.org dept.
> it creates low trust
Try looking into the camera when you speak rather than the screen.
What is the best way to profit from all this crypto hype, as a rational person who’s convinced all coins will eventually go to zero?
Posted by
Lxr on Monday June 03, 2019 @11:36PM
from the mobile.abc.net.au dept.
This. Router-level blocking will become impossible without intercepting https, and endpoint blocking also gets harder.
Now I really want to know how I save myself before the candle burns through the rope.
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What is “true AI” in your opinion?
Everyone using UTC would be chaos. Imagine organising a remote meeting - you’d have to figure out which hours each party would be awake, by googling “waking hours in Germany” for example.
> Think of it as a VERY slow, VERY large TV screen. With red, green, and blue blocks, they could advertise almost anything!
I don’t think that works if the blocks are reflecting light rather than emitting it.
Abstract syntax tree, a data structure used by compilers to represent code
Wow, apparently the length of your ring finger is correlated with your testosterone levels.
The reverse question is equally interesting - to what extent can we influence the activity of our immune system by controlling stress levels, practicing mindfulness, and the like? I think there is a lot still to be discovered about this.
How does that solve the no connectivity problem? You’d still need the site (with rendering scripts) cached.
Can you explain this distinction in more detail?
Awesome, suggest you make valid words clear automatically
OneNote is fantastic. Of all the Microsoft things I have installed on my Mac, it’s light years ahead of the rest in terms of stability, usability, speed. It doesn’t get enough recognition!