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Archived threads in /sci/ - Science & Math - 140. page

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Could the reason machine learning is stuck in a rut be because it's become too competitive, and thus is filled with soulless asians with perfect GPA's producing purely derivative work?
10 posts and 1 images submitted.
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>>9126015
no optimization is limited by the amount of information given and ability to fit the information. representing all information to be processed numerically such that it has some complex accurate memory properties is difficult.

no one is teaching in school the next wave of ml right now.

the problem:
https://en.wikipedia.org/wiki/Chinese_room
>>
>>9126018
I think the answer is to symbolize the functioning of the program too, higher order meta cognition. Right?
>>
Pretty much.

The conferences are being flooded with by papers made by teams of asian grad students who just fiddle with conv net architectures until they overfit the dataset even more than the last guy.

Really though, I think the problem is that "Data Science" people all moved over into "Machine Learning" once it became the buzz word. And data science guys are purely concerned with pushing benchmarks, so that kind of spawned this attitude.

Machine Learning used to feel very scientific and mathy, but now its becoming more like engineering.

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Is 1 a power of 2?
10 posts and 1 images submitted.
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>>9125985
Essentially meaningless statement. Please make something of yourself.
>>
>>9125988
your birth was a meaningless event, doesn't mean it can't be described by someone who is of greater significance.
>>
>>9125988
Absolute meaning is difficult to unravel.

Help, how can potatoes be used to power something for 3 hours
8 posts and 2 images submitted.
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>>9125901
>eat lots of potato
>collect your farts
>burn farts
>heat water
>steam turbine
>some other shit
>power something
>>
throw potatos at your neighbor till he pass out and steal electricity from his house
>>
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>>9125901
1: Boil the potato for 8 minutes.
2: Chill it in the fridge in a sealed container.
3: Slice the potato.
4: Make a pile battery using the slices of potato.

Enjoy a 40-day lifetime potato battery.

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how do cells know where to stop being liver/lung/etc and start being skin/bone/etc?
19 posts and 2 images submitted.
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>>9125870
Cells don't go from one differentiated cell type (liver or lung) to another, especially if that type is in a completely different tissue group (connective which is skin/bone and other stuff). iPS cells definitely can't do that. Cells start from undifferentiated stem cells and begin specialising based on their position in the body and signals from other cells.
>>
A better question to ask would be what causes stem cells to specialize. This board needs a stupid questions thread if there isn't already one.
>>>/fit/sqt
>>
>>9125996
How do stem cells know their position?

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>sit down in Discrete Math discussion
>TA is really hot
>Can't focus on proofs because too busy staring at ass
I hope [spoiler]he's gay[/spoiler]
9 posts and 1 images submitted.
>>
has he smelled your pheromones yet?
>>
>>9125763
We've only had one day, anon.
Maybe I should visit the biochem department and ask for some aphrodisiac.
Then again, he's an awkward math phd student, so he's probably desperate for pussy, even if it's boipussy.
>>
>>9125761
You should
>find out where he lives
>break into his home
>mix powdered Viagra into his coffee
>wait until next day
>wait for him to drink his morning coffee
>knock on door
>spread boipussy
>wait for door to open

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Do you believe that one's actions/traits that are conceived in their lifetime imprint on their genetic code? If so, what do you think are the possibly inheritable traits? If not, why?

Pic is related, if you're not a pleb who doesn't play Assassin's Creed games.
6 posts and 1 images submitted.
>>
I'm definitely predisposed to alcoholism
pops wasn't no pushover
>>
If you and your partner workout all the time your child will be super muscular.


;^)
>>
>>9125629
it's a known fact that one's experiences chance epigenetics which are passed onto subsequent generations. so yes.
https://en.wikipedia.org/wiki/Transgenerational_epigenetic_inheritance

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I tested into Calculus and Analytic Geometry and the professor said we need to have a "heavy background in trig".
>Mfw I only took Algebra 1, Geometry, Algebra 2, and Stats in High School Mfw we're taking tests to see if we belong in Calculus and it's all a lot of trig
>Mfw I'm learning trig on my own time now because there's no way I'm going to not take Calculus
>Mfw the book is $200 and we need to buy it in order to do Hw online
Wish me luck bois. Tips to learn enough trig in 2 weeks to belong in calculus?
10 posts and 1 images submitted.
>>
You got this! No tips though
>>
Trig's pretty easy desu. Not a lot to it. Shouldn't take you long.
>>
>>9125621
Memorize everything since you only have two weeks

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Differentiate the problem. I know all you enlightened chemists out there can help me out.
10 posts and 2 images submitted.
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>>9125547

[math] \textrm{Like nigga just use}\ \dfrac{d}{dx}\ \textrm{'n' shiet mayne.} [/math]
>>
>>9125547
Bruh a, d, and f are babby tier calc easy. For h you'll need some Maxwell relations.
>>
>>9125574
[math] \textrm{Macswole Relahshun? What dat be my nibba?} [/math]

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Hi /sci/, /tg/ here. I'm in a campaign right now and was hoping to get some answers regarding sound and its lethal applications. More immediately how loud or how many decibels would you need at minimum to kill insects like bees and wasps. Or would you be able to with just a specific frequency in hertz?

Secondly, how hard would it be to build an LRAD, and how hard would it be to get to 200db? 300db? What would be the expected force from 200/300db respectively coming out of the device.
9 posts and 1 images submitted.
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You need to find the resonance frequency of whatever part of its body you want to impair or damage. But even so, you'd need something pretty strong with just sound.
>>
I need this ASMR
>>
>>9125458
do you have some kind of noise marine knock off going?

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Would it be correct to say that virtual particles are a form or type of radiation?
6 posts and 1 images submitted.
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Very interesting picture.
Do the other set of footprints belong to the same cock?

Maybe we will never know.
>>
cute chicken
>>
Cock a doodle penis

Let's suppose you were the President of the United States and the Senate has just approved an extra $100 billion USD to be spent on this year's Science & Research budget. Besides tax breaks to companies like Space X, what would be the best ways to invest this money in the development of science, research and technology in the most efficient way possible, making every penny of the several billions to count, speaking as exactly, precisely and technically as possible?
20 posts and 1 images submitted.
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All funding to the technology to send a single man back in time to save the world from minorities.
>>
$100 billion to the group that can wipe out all psychopaths on earth, now and hereafter. Jews implode, China disappears except for 3 people, India almost wiped out. Africans vanish. Much of the rest of the world fades into the annals of history. People celebrate because all wars ended and honest,kind people remain.
>>
$100 billion to engineer robot waifus and artificial wombs.

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In English the professor is making everyone post a short narrative about themselves on his website. We've got to include some information and how we feel about writing. Literally everyone so far has over estimated their writing skills and I'm pretty sure they're all brainlets. Does the Dunning-Kruger Effect apply to this situation?
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>>9125279
>the professor is making everyone post a short narrative about themselves on his website
>>
>>9125279
>Does the Dunning-Kruger Effect apply to this situation?
Yes.
>>
english class is a fucking joke after it stops actually being focused on teaching you how to speak and write english

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I need help assessing which statistical method to use. I plan on using a likely scale (1-5 rating) for 3 topics (stress, difficulty, effort). However, these three scores are going to fall under 1 out of 3 other categories (type of interaction person goes through). So, subjects first pick a category (A,B, or C) then they give a 1-5 rating for levels of stress, difficulty, and effort.

>bonus question

What would I use if comparing these results with 2 different groups?

I'd really appreciate your input as I have been put of practice for a long while.
7 posts and 2 images submitted.
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Anyone?
>>
what questions are you interested in asking and answering with this data?
>>
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>>9125226
chi-square test for independence between groups

>he thinks solving a math problem makes him smart
Here is a real project for you:

You are in an airplane holding a candle. Youve accumulated a jar of hot candlewax oil. (2 liters)

you dump the liquid out the plane
How long until the liquid solidifies back to wax?
7 posts and 1 images submitted.
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>>9125198
This is bait
>>
>>9125198
0 seconds. Since you did not specify how hot it is I will assume it is right on melting point.
>>
trick question. liquids can't solidify if falling south

The far right think they're the spawn of the devil, the far left supports them. What does science actually have to say about it?
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>>9125077
get out
>>
>>9125077
https://en.m.wikipedia.org/wiki/Behavioral_sink
>>
>>9125077
Think of it this way... is it possible to have such a thing as imaginary charge when it comes to protons and electrons?

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