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Neon Genesis Phijkchu

Lifecycle
July 17, 2020 – Present
Snapshot
Through August 30, 2026
Preserved messages
June 19, 2020 – August 30, 2026
Members
712
Messages
1,098,506
Channels
43

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taxes vent
Replying to Spooky Phijkchu #spooky.131
some 30 year-old 7/11 guy who did a weekly vlog to <100 viewers, but for whatever reason he went viral last week and is now going to be a millionare (edited)
im really happyu youtube reccomends these dead end randomc hannels because of stuff like this
legorhin vent
one of the questions on the homework I am grading is an exercise in counting and one submission failed so miserably that it might have been fed into chatgpt
legorhin vent
now I have some retard that decided we need to do fraction multiplication in log space to prevent "overflow" and threw some log(0)s in there
Spooky Phijkchu vent
it reminds me of when I used to plug shit into wolfram alpha without understanding it, and it would try to normalize bases or graph it, because however it interpreted some comma or symbol I copied in
Wuvwand vent
I need to brush up on my calculus, it’s annoying me that I understand what’s happening in that image but can’t remember how to solve it myself
legorhin vent
the professor asked me why the grade average was so low since most of the assignment was freebies and I had to explain that the students invented ways to lose points
legorhin vent
this is less trivial than the stupid stuff I was laughing at earlier for grading, but almost half of the class doesn't know how to compute classification error
legorhin vent
trying to use this equation from a conference article, but they made no effort to explain how they prevented the log of a negative scenario
image.png 3.8 KiB · captured_local
legorhin vent
and here's the brilliant code within this file to implement the assigned Harris corner detection algorithm
image.png 6.7 KiB · captured_local
Phijkchu_Pikachu vent
Intuatively, the limit should be about 3/2, since that is the expected value of each Xi, actual answer is 4/e (I was just assuming it was 3/2's which was tripping me up). I literally just needed use the strong law of large numbers on the natural log of that
Phijkchu_Pikachu vent
What really kills me about this, is I kept second guessing myself, so I coded up a quick program to check that it did converge to 3/2's, and kept getting 1.47ish, which is 4/e, not 3/2!
Phijkchu_Pikachu vent
Sort of, the trick is you take the natural log of this, then you have a sum of iid random variables over N, which then you can use the strong law of large numbers on like normal

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