Recent comments in /f/explainlikeimfive
ObIivious OP t1_j6liydn wrote
Reply to comment by Easy_Reference6088 in ELI5: linear regression and how it plays a role in deep learning by ObIivious
Let me see if I understand this. To piggy back off your example, the x axis can be the weight(lbs) of a dog from least to greatest and y axis can be the amount of food the dogs ate also in lbs and from least to greatest. Based on the data we plotted we draw a line that best fits the graph and that line can help estimate solutions? So if we have enough data and a customer comes with a X size dog asking how much their dog needs to eat, we can refer to the line and figure that out. Is this correct?
justanotherguyhere16 t1_j6lisvb wrote
There’s two types of “hot” just like there are two types of “cold”
How cold is the absolute or “actual” temperature but then they add in the wind chill factor because air moving over you cools you down quicker (or warms you up quicker but the difference in your body temp vs cold is greater than your body temp versus hot)
Now to see how hot it is there is again the actual temp and then what they call the “wet bulb thermometer test”. So they take two thermometers, one they wet a cloth that slips over the bulb of one of them and then basically whirl it a bit to see how much the water evaporates off the one to cool it down. This is how they see hot “hot” it feels. Your body cools off by sweating so the more humidity the harder to cool down and why you get soaked in sweat on humid days but dry as can be in the desert even if the actual temp is hotter.
[deleted] t1_j6lisbw wrote
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Foreign_Ebb_6282 t1_j6lin66 wrote
Reply to comment by triggerhappymidget in ELI5: when people give up red meat for lent, why do they always eat fish instead? Aren't chicken and turkey white meats too? by Inanimatepony
Yeah but capybara are always hairy….sometimes beavers aren’t
kanavi36 t1_j6ligt3 wrote
Reply to comment by WeirdGamerAidan in ELI5: Why do computers need GPUs (integrated or external)? What information is the CPU sending to the GPU that it can't just send to a display? by WeirdGamerAidan
Small correction, integrated graphics is usually the name for the CPU doing the graphics workload. The GPU would be dedicated or discrete graphics.
triggerhappymidget t1_j6lib2w wrote
Reply to comment by MisterProfGuy in ELI5: when people give up red meat for lent, why do they always eat fish instead? Aren't chicken and turkey white meats too? by Inanimatepony
And capybara
Megalocerus t1_j6lians wrote
Reply to comment by StudioDroid in ELI5: How do they come up with names for countries in foreign languages? by bentobam
I believe it's because Arkansas came through the French and Kansas did not.
[deleted] t1_j6li9en wrote
Reply to comment by Catlover2565 in eli5 why do advertisements for iOS games not depict actual gameplay? by swright10
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Overseer090 OP t1_j6li99p wrote
Reply to comment by Gigantic_Idiot in ELI5 How do food producers work out the best before date? by Overseer090
Cool! Still wonder how they've worked that out!
lappyg55v t1_j6li09b wrote
Reply to ELI5: Why do computers need GPUs (integrated or external)? What information is the CPU sending to the GPU that it can't just send to a display? by WeirdGamerAidan
Most modern CPUs can do exactly what you are stating, as they have the graphical processing capability right on the chip itself. This is enough for most office or school computers, as well as low powered laptops. Generally, GPUs are needed for more difficult tasks that are beyond the capabilities of what a CPU can handle. For example, a very detailed game or computer graphical design will almost require a separate GPU in the PC. However, there are some CPU models that lack the "graphics chips" or are there but disabled by the manufacturer, generally a cheaper model of a CPU.
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With that being said, if someone was building a budget PC, with very light gaming, you can just get a modern CPU capable of onboard graphics for low end performance.
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Although I feel like your question may be as to why a CPU itself would need *any form* of a graphics unit, even if it is "on the chip" as with many modern CPUs. The CPU, strictly speaking, does computations in and of itself, at a very fast rate. However, it does not have the ability to do the output frequency conversions needed for standards that make the PC capable of connecting to an HDMI, VGA, Displayport etc. It is the same notion that necessitates having system ram, a hard disk, and other peripherals attached to do what you want to do.
Easy_Reference6088 t1_j6lhz4w wrote
Unfortunately I have no help for the deep learning part, but I'll give a go on linear regression:
Linear regression is using one or more variables to predict a response. The way that it is predicted is with a line (hence the linear name). For example, if you wanted to predict how much food your dog ate, you could use linear regression. Let's say that the response is the total amount of food that your dog eats in a week, and the variable is how much the dog weighs. Knowing that a bigger dog should eat more, there will be a trend towards higher values as the dog weighs more. If you pooled 100 pet owners and asked the weight of their dog and how much the dog eats, you can put all of that data together and use a regression model to predict how much a dog of a specific weight might eat. The data can produce a line of best fit with modeling technology which basically makes the best line that minimizes the differences between the sample data and the predicted data (the line). You can also have more variables than one, such as the dog's eating habits (more or less meals a day), how much the dog exercises, or even the breed (which would be categorical, not numerical).
TL;DR: a linear regression model predicts one value based on another value and then fits a line to it that predicts the value as accurately as it can with the data given.
[deleted] t1_j6lhyno wrote
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lygerzero0zero t1_j6lhvyy wrote
Reply to comment by WeirdGamerAidan in ELI5: Why do computers need GPUs (integrated or external)? What information is the CPU sending to the GPU that it can't just send to a display? by WeirdGamerAidan
The CPU hands the recipe to the GPU, and the GPU actually cooks it. Knowing the recipe is not the time-consuming part, it’s the actual cooking.
Megalocerus t1_j6lhskh wrote
Reply to comment by Jenna_Rein in ELI5: Why does the IRS want your illegal income declared on tax returns? by xCreamPye69
No, it's not true at all. You are taxed on income, not the increase in wealth. I can have my wealth plummet due to a stock market drop, but owe taxes on my interest income even as my wealth drops. I can go into debt on my $100K income so my wealth is negative, but I still owe taxes on the $100K. Wealth has nothing to do with it except maybe if I die with more than 11 million, and then it is the change of ownership that is taxed--a kind of transaction.
somethingkooky t1_j6lhohz wrote
Reply to comment by Whynotme23 in ELI5: when people give up red meat for lent, why do they always eat fish instead? Aren't chicken and turkey white meats too? by Inanimatepony
I clearly know little to nothing about religion - I thought they were saying that pancakes were ok because they didn’t have eggs! (I read it as Tuesday being the first day of Lent.) Thanks for the info, TIL.
PoopLogg t1_j6lhhjg wrote
Reply to comment by Truth-or-Peace in ELI5: Why do so many fruits have seedless varieties but the apple and cherry do not? by JanaCinnamon
> (This problem is even more pronounced in cherries: it's not the seed that people object to, but rather the stone around the seed.) >
🤣 Yeah because that's definitely not what op was talking about 🙄🤣
Whynotme23 t1_j6lherm wrote
Reply to comment by somethingkooky in ELI5: when people give up red meat for lent, why do they always eat fish instead? Aren't chicken and turkey white meats too? by Inanimatepony
Which is probably why he said the day before the first day of lent they have pancakes……..
militaryCoo t1_j6lhb36 wrote
Reply to comment by somethingkooky in ELI5: when people give up red meat for lent, why do they always eat fish instead? Aren't chicken and turkey white meats too? by Inanimatepony
Congrats?
Catlover2565 t1_j6lhauu wrote
It isn't just iOS that does this... It is to entice people to download/install. Then when people view the app it will show XXXX number of downloads.
What it doesn't tell you is how many uninstalls there were/are.
sirbearus t1_j6lha3b wrote
You have a misunderstanding of temperature. Temperature is different than humidity and that is also different from heat loss.
To start backwards, when you are sitting at a window and the weather is cold outside, when you feel , "the cold" at the window you are actually feeling not the cold air coming in, you are experiencing heat loss from your body.
When you stick a thermometer outside it senses the air temperature and it reaches a state when the liquid inside the bulb is the same as the outside air temperature. There is no heat exchange taking place as they are in equilibrium. Unlike your body which generates heat and you will continue to feel the heat loss just like at the window.
Humidity is a measurement of the air to carry water vapor without it returning to a liquid state. It is expressed as a percentage where the current water load of the air is compared to the maximum capacity.
Capacity goes up as a function of temperature. That is why the cold months seem dryer.
I hope that helps you to understand.
Cannie_Flippington t1_j6lh3p4 wrote
Reply to ELI5: Why do so many fruits have seedless varieties but the apple and cherry do not? by JanaCinnamon
I don't think there are any stone fruit that have seedless varieties. Cherry, avocado, peach, etc. Seedless watermelon they create a hybrid of two different watermelon. Like a mule, these hybrids are sterile and only have malformed seeds if any. Pluots are a hybrid and you'll notice that they still have a stone... but sometimes it's only half there or not properly formed. Even seedless oranges can have the odd seed. How they make something seedless depends on how the fruit reproduces and sometimes sterility doesn't yield the desired results if creating sterile fruit is even a realistic process.
Bananas aren't seedless, nor strawberries (I know they're not actually the seeds), nor raspberries... most berries if not all don't have seedless varieties. Some fruit has seedless varieties but the vast majority of the fruit we cultivate isn't seedless.
somethingkooky t1_j6lh03e wrote
Reply to comment by militaryCoo in ELI5: when people give up red meat for lent, why do they always eat fish instead? Aren't chicken and turkey white meats too? by Inanimatepony
Pancakes have eggs in them, or egg products (in the case of “just add water” mixes). Edit: apologies, I misread the post - I thought it was saying that Pancake Tuesday (the day before Ash Wednesday) was the first day of Lent.
tdscanuck t1_j6lgzkn wrote
We *don't* measure the temperature excluding humidity. We just measure the temperature. It's really easy. Temperature doesn't change with humidity.
What changes is how hot it *feels*...when the air is dry sweating works better and we feel cooler. When the air is humid sweating works badly and we feel hotter. But the actual temperature isn't changing.
lethal_rads t1_j6lgx8w wrote
Reply to comment by Pokemonobsessedlesbo in ELI5 - why are bonded pairs okay in animals but not humans? by Pokemonobsessedlesbo
Internal instincts are species dependent. The social interactions of some species do not inherently extend to other species. Pair bonding is hardly universal as well. Numerous species don’t pair bond. So given these two things, why would it be normal for humans.
Pokemonobsessedlesbo OP t1_j6lj9t2 wrote
Reply to comment by lethal_rads in ELI5 - why are bonded pairs okay in animals but not humans? by Pokemonobsessedlesbo
Yes I already said that in another comment. But to say no instincts translate to basic Survival, or are more common in mammals would be wrong. Even more so if we start looking at specific classifications, youll obviously start seeing more in common. I never state which instincts I thought humans had. But to say any of our instincts don’t have a commonality with at least one other animal species would be wrong.