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crime-bot · 3 years

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! Creature Gets Lost in a Bootleg OmegaMart, More at Eleven !

A small, grey weasel of a dragon was in the dim and cool alley of a street. They were rummaging through a garbage can, making a little mess of clatters and clangs, but coming up with nothing edible. They paused to droop and lament over their misfortune. In the middle of the pause, and through the midst of discarded cans and empty bags, they caught a glimpse of yellow, clear as day. It must’ve been a banana! Or cheese! They gasped with some new vigor ignited and reached their scaly arm in to get it, but when they got hold of the thing and pulled it out it was just a plastic lemon. They grumbled and angrily threw it at the ground. It bounced away and stopped, resting near the alley’s wall opposite of them.

Their stomach growled.

“Yeah, yeah, I know!” Greyscale said, “I’m trying to find something! Can’t you have any pa-”

They looked up as they hollered and noticed some smoke in the sky, above the surrounding brick buildings.

“Oh, what now, a fire-?”

They had to admit, they’d be intrigued by the idea of a fire somewhere, and at least that’d take their mind off their stomach. What else could smoke mean, after all? They knew the saying: where there’s smoke, there’s fire.

They lept to a pipe that scaled the side of the alleyway and climbed it to the rooftop only to discover the smoke was coming from a particularly not-up-to-code shipping truck, but what wasn’t what caught their eye.

Behind it was a large building with the words “DELTAMART” displayed proudly over a set of clear doors, standing tall and sure in the light of day. A grocery store! That’s just what they needed!

“Actually, I don’t think we’ll have to wait for much longer,” Greyscale said.

They lept and bounded down from roof to windowsill to dumpster. Right as they hit the ground, they made a dash through the parking lot desert, behind the truck, and right right up to the doors, then abruptly stopped and clung to the wall in an attempt to stay out of the eyes of anyone from inside.

They did a double-take, looking for anyone nearby. No one was around. They poked their head around to peak through one of the glass doors of the building that towered over them, a looming mass of bricks and corporate design.

There were some people walking around inside, carrying overflowing cornucopia baskets and pushing carts full of different treats, tools, and other products, but that wasn’t what got them the most. The aisles they could see were filled to the brim with food, and a couple of visible setups of fruits and vegetables looked so delicious and tantalizing in their array of colors that they sparkled to the dragon like precious gemstones.

Greyscale drooled a little with wide eyes.

They anxiously waited until there were barely any people near the doors, and anyone that was there appeared too thoroughly occupied to notice anything sneaking in.

They whispered, “the coast is clear!”

The creature sprang from their hiding spot and scrambled ins-- wait, no, nevermind, they just bonked headfirst into the glass door.

A first-time customer in a nearby checkout aisle got startled out of her waiting stupor and looked over to the sliding doors. Nothing was there.

“Did you hear that?” she asked.

“I hear everything,” said cashier #23,457, mid-scan of a bag of milk with one of his hands.

Understandably, that monotone answer concerned the customer, but she tried to brush it off. She just needed some milk for a recipe quick, and this was the closest store to her house.

“So-- Um,” she pressed on, “what about that thud from outside?”

“Ohh, haha, yeah I did,” he admitted, “Someone probably just walked into one of those doors again.” He handed the customer a grocery bag with her bagged milk inside and said, “Anyways, have a good day!”

Warily, she took the bag.

“You’re... not going to check on th-”

“H-H-Have a good day!” He said.

Now truly weirded out, she quickly said, “alllright thenIwill!” and walked out as fast-yet-also-not-running as she could.

It’s safe to say she’ll make the effort to not come back.

Seeing their chance, Greyscale scurried in under an exiting woman’s line of sight before the glass doors closed behind her.

At last, they made it into the glory of fluorescent lighting and vibrant food! In the midst of their wave of triumph, they continued to make the effort to stay hidden, taking cover behind some shopping carts.

The store was very nicely kept, they had to note. The white and navy blue checkered floors were spotless, and all the aisles and displays of different sorts were a combination of white, and/or blue, with some yellow, too. From where they were hidden, the whole place smelled cold and vaguely sterile, but they didn’t complain about it. They knew that was just how supermarkets were.

They took a great big breath in preparation and ran from the cover of the shopping carts, still with the effort of being undetected. As they perused in their own only slightly feral way, they dove behind grocery aisles, clambered up shelves, and hid in crates to stay out of workers’ and customers’ perceptions.

During this act of stealth and agility, they noticed an aisle with no people in it full of candy from atop a set of shelves.

“Aw, how sweet of fate!” they mused.

The creature made a B-line for it, jumping across gaps between short distance of aisles, and snagged a small bag of candy that had fallen to the checkered floor. They tore into it and began to eat a mouthful of the tart, brittle sweets inside.

Among the midst of the corporately pleasant music playing throughout the store, its jingle chimed in.

It sang, “De-De-deee de DelllltaMart, you have NO ideea what’s in STORE for YOU-u-u!”

They noticed the jingle and stopped their snacking to chuckle.

“You’re right about that,” they said, “I wonder what other good stuff this place has!”

They focused back on their bag of Candy Spiders (Now With 70% More Spiders!), just in time to notice one of the confections moving amongst its kin with its bone-pick legs.

A shocking moment of registration passed. They yelped at the realization and threw the bag away from themself as far as they could.

They sputtered, “Did-- did that--? No-”

They paused and slunk back up to the bag, warily.

The bag was motionless.

Slowly, cautiously, they batted it with their paw. They reeled it back away from the bag, as if it might jump up and bite them. Still, nothing inside moved.

They blinked a couple times and began to doubt what they thought they saw.

“Huh, h-ha, maybe this candy’s expired..” they said.

Greyscale left the bag behind to wander about some more(and put some distance between them and the Candy Spiders, but they didn’t want to fully admit that), and checked the rest of the products out.

They trotted through the deli area, passing by a stiff employee who was still in the process of regaining energy from his charging deck, fixated on the selection of meats. They even tested grabbing a slice of ham, and he didn’t notice one bit!

Once they were done with that, they visited another place that no one was in at the time. It didn’t have anything meant to be edible, but it sure was beautiful. Countless flowers were displayed in rainbows of colors, and the air was chilly to keep them all preserved for longer. Greyscale stayed there, smelling the roses both figuratively and semi-literally, until they had enough of that. They walked out of the section and past a sign that read, ‘HYBRID FLOWERS’. One of the tulips opened its eye.

After that snack and slice of ham they had, Greyscale was undoubtedly more content with their level of hunger, but they wanted to try to make the most of this place. After all, when they’re amongst a bounty of food, it’s good to get as much as they can before they go. They put their two front paws up on the ledge of a refrigerated bin full of organized fruit and poked their snout in, looking to choose which might be tastiest. Should they have a pear, or maybe an apple? Oh, but the peaches looked good, too!

Out from under the side of a display pyramid of apples behind them, a glitching, writhing tentacle rose to inspect its produce.

Ah, yes, every apple was shiny and in order... It had the pigeon grease to thank for that. It was about to retreat back under the apples, but something caught its attention. What it noticed was grey, and.. It wasn’t shaped like a customer either. It was rummaging around in a nearby refrigerator bin full of fruit strictly for customers.

Greyscale felt a couple of taps on their back and jumped, then turned to face-

“aAh-!!”

Nope! Nope, nope nope! They scrambled into and out of the freezing bin of fruit and away from the shifting, glitching-- thing in front of them. It lunged, and they turned and ran only to skid to a halt before smacking into a glass display case of ears.

Oh nonono, they shook the shock from that off and sprinted left into an aisle, only to see one of the store workers pulling can after can out of his mouth to put on the shelves.

They quickly turned again to climb up a shelf from the opposite side of the aisle as fast as they could. They really, really, really shouldn’t be here-

They tried to escape, find a way out, but the more and more they ran and jumped and turned, shifting from running on the ground to balancing on top of aisles, the more the grocery store grew and stretched into a labyrinth.

“NononononoIcan’tbetrappedthere’sgottabeaneXIT-”

They stopped briefly, shuffling and turning in place and trying to catch their breath, looking for anything that could possibly function as a sign to point them out. They launched themself from where they stood again only to smack into a pair of legs they hadn’t noticed.

The owner of those legs, a tall, nicely dressed woman, looked down at whatever had bumped into her.

Greyscale screamed and ran as soon as they realized they got noticed yet again.

“Huh…” she said, “one of the fish they’re selling must’ve got out again.”

She shrugged and continued to read the label of some canned wood she grabbed from a shelf of assorted canned inedibles.

Still thoroughly spooked, Greyscale bolted through the open door of a storage room to hide, but it only led to an expansive area of ventilation pipe trees and tubes protruding out of the ground and sky and distant walls in a variety of angles, all painted in a mess of glowing neon patterns.

The little dragon darted about the dark and dizzying manufactured forest, too worried about getting caught by any foe to realize the nature of the location surrounding them until they finally looked back. They began to slow down to a trot when they didn’t see anyone.

“There’s…” they huffed, “no one.. there…?”

Upon that realization, they slowed down even more, but that wasn’t enough to keep them from losing their footing on a pipe nestled into the glittering ground.

“HuhuUuAH-!”

Before they had a chance to save themself, they were swallowed into further oblivion and shot down the pipework with a series of clunks and shouts, thumping, denting into each abrupt turn going deeper, deeper, faster, faster until they were finally spat out to the end.

Greyscale was flung from the mouth, still held at the whim of momentum, and tumbled to a stop, toppled over themself. The result of that disorienting ride was a dizzy, discombobulated dragon, complete with stars going around their head as it bobbed about, trying to get their bearings despite their eyes having trouble focusing on anything for the time being.

They knew it was bright, or-- maybe it was dark? They couldn’t tell, they could still only see stars and an ever-shifting background. Their ears picked up on a further dizzying soundscape of moving, shifting, falling, corporate music, but the more they strained to focus on and determine a sound the more and more difficult it felt to tell any sound apart from another. It was a surrounding, pattering swarm of noise, and as their vision cleared and they tried to stumble up, they only fell back down onto the soft, squishy.. mahogany(?) surface they had been spat onto by the pipe.

Wearily, they picked their head back up and finally witnessed the shifting, unending world surrounding them. Cans floated through the air, worlds of their own, great candy spiders spun threads and webs of sugar on even more pipes that ripped out of the ground, checker patterns slid across surfaces, and everything seemed to pulse with an underlying life.

They were then aware, horrified, of the unavoidable fact that they were now utterly, hopelessly lost.

Amidst the cacophony of sights and patterning and a ground they couldn’t get a hold of, Greyscale thought they heard a familiar yet muffled jingle, far away in the distance yet echoed everywhere throughout these caverns.

“De-De-deee de DelllltaMart, you have NO ideea what’s in STORE for YOU-u-u!”

Their heart sank.

“Oh no-”

#I'm gonna polish this more later but I'm throwing it here so I can show someone because it's more convenient than google docs #my writing #omegamart #is #does this count as OmegaMart fanfiction???

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howdidyoufindthis · 3 years

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Their stomach growled.

“Yeah, yeah, I know!” Greyscale said, “I’m trying to find something! Can’t you have any pa-”

They looked up as they hollered and noticed some smoke in the sky, above the surrounding brick buildings.

“Oh, what now, a fire-?”

Behind it was a large building with the words “DELTAMART” displayed proudly over a set of clear doors, standing tall and sure in the light of day. A grocery store! That’s just what they needed!

“Actually, I don’t think we’ll have to wait for much longer,” Greyscale said.

Greyscale drooled a little with wide eyes.

They anxiously waited until there were barely any people near the doors, and anyone that was there appeared too thoroughly occupied to notice anything sneaking in.

They whispered, “the coast is clear!”

The creature sprang from their hiding spot and scrambled ins-- wait, no, nevermind, they just bonked headfirst into the glass door.

A first-time customer in a nearby checkout aisle got startled out of her waiting stupor and looked over to the sliding doors. Nothing was there.

“Did you hear that?” she asked.

“I hear everything,” said cashier #23,457, mid-scan of a bag of milk with one of his hands.

Understandably, that monotone answer concerned the customer, but she tried to brush it off. She just needed some milk for a recipe quick, and this was the closest store to her house.

“So-- Um,” she pressed on, “what about that thud from outside?”

Warily, she took the bag.

“You’re... not going to check on th-”

“H-H-Have a good day!” He said.

Now truly weirded out, she quickly said, “alllright thenIwill!” and walked out as fast-yet-also-not-running as she could.

It’s safe to say she’ll make the effort to not come back.

Seeing their chance, Greyscale scurried in under an exiting woman’s line of sight before the glass doors closed behind her.

During this act of stealth and agility, they noticed an aisle with no people in it full of candy from atop a set of shelves.

“Aw, how sweet of fate!” they mused.

Among the midst of the corporately pleasant music playing throughout the store, its jingle chimed in.

It sang, “De-De-deee de DelllltaMart, you have NO ideea what’s in STORE for YOU-u-u!”

They noticed the jingle and stopped their snacking to chuckle.

“You’re right about that,” they said, “I wonder what other good stuff this place has!”

They focused back on their bag of Candy Spiders (Now With 70% More Spiders!), just in time to notice one of the confections moving amongst its kin with its bone-pick legs.

A shocking moment of registration passed. They yelped at the realization and threw the bag away from themself as far as they could.

They sputtered, “Did-- did that--? No-”

They paused and slunk back up to the bag, warily.

The bag was motionless.

Slowly, cautiously, they batted it with their paw. They reeled it back away from the bag, as if it might jump up and bite them. Still, nothing inside moved.

They blinked a couple times and began to doubt what they thought they saw.

“Huh, h-ha, maybe this candy’s expired..” they said.

Out from under the side of a display pyramid of apples behind them, a glitching, writhing tentacle rose to inspect its produce.

Greyscale felt a couple of taps on their back and jumped, then turned to face-

“aAh-!!”

Oh nonono, they shook the shock from that off and sprinted left into an aisle, only to see one of the store workers pulling can after can out of his mouth to put on the shelves.

They quickly turned again to climb up a shelf from the opposite side of the aisle as fast as they could. They really, really, really shouldn’t be here-

“NononononoIcan’tbetrappedthere’sgottabeaneXIT-”

The owner of those legs, a tall, nicely dressed woman, looked down at whatever had bumped into her.

Greyscale screamed and ran as soon as they realized they got noticed yet again.

“Huh…” she said, “one of the fish they’re selling must’ve got out again.”

She shrugged and continued to read the label of some canned wood she grabbed from a shelf of assorted canned inedibles.

“There’s…” they huffed, “no one.. there…?”

Upon that realization, they slowed down even more, but that wasn’t enough to keep them from losing their footing on a pipe nestled into the glittering ground.

“HuhuUuAH-!”

They were then aware, horrified, of the unavoidable fact that they were now utterly, hopelessly lost.

“De-De-deee de DelllltaMart, you have NO ideea what’s in STORE for YOU-u-u!”

Their heart sank.

“Oh no-”

#Long post

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arkannis · 3 years

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hi, i’ve been reblogging your art for a while and wanted to ask if you have any advice about getting better? (you are super talented 😭😭)

hi! first of all thank u !! long post incoming they dont have the keep reading option on mobile, my bad

second of all i am bad at giving advice because i am in NO way knowledgeable about...art..? i am completely self taught and ive been drawing for a long time. this is what works for ME:

you don't need to make a whole art piece everyday

use references like your life depends on it. no seriously. unless you have the ability to draw from memory (unlikely)

i look at other people's art tutorials because they break down components in an understandable way

when i draw humans, i draw realistically sometimes. helps me understand actual facial anatomy before adapting it into my own style

i watch speedpaints/art timelapses a lot. seeing another person's process helps me learn a lot about how they approach their artwork - and how i can apply that to my own process. this can be about how they start off a painting (sketching vs. blocks of color first) or what they color first (focusing on values i.e. greyscale or base colors right away?)

now actual advice from other people that ive read and i definitely do not do:

warmup drawings and by that i mean lines and circles, not whole artworks

i should REALLY take this advice. its good to understand the fundamentals/basics of art like values and color theory and composition. i know in cosmetics they say that makeup has no rules but it does have a theory. i imagine visual art is somewhat the same?

work smarter, not harder.: use the resources that your medium is offering you

yes thats all i got. im not a professional. also you should compare yourself to yourself, not others (quite difficult to do but we can still do it!). development in art skills is different for every individual depending on time, resources and experiences. don't be afraid of constructive criticism! as long as you actually asked for criticism. people who just freely say unwanted shit r annoying lol.

i hope this is of use to you😫 this took a long time to write bc im wary of advice i give

#side rant #if i wasnt going to a rigorous academic program i sincerely believe i would be way better than i am right now #but i cant devote time to do art all the time unfortunately #so when i do see other people my age making godlike art pieces #im like damn wish that was me #but im like but damn. they probably had more time to practice #noo instead i gotta like do bullshit the IB is makin me do #im not the best but its honest work LMA #fran talks #asks #bonus for anyone reading the tags:#arcann is hard to draw when i use his in game model as a reference #so i have to use his CGI model #but his face is so confusin #im bad at drawing deep eyes AUEUFAKDNKJD #and im not used to drawing thin lips lmfosnfksnfmdfjkdjf

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iwishtobealoneandwithoutsun · 4 years

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>>>>>>>> here's a big fat question for you as you go into the posts that follow from here: "what do you think is the root of things like political instability, institutional racism, religious persecution, revolution, genocide, and economic oppression?" in other words, what is the most general way you could describe the thing or things that all of those situations (large-scale social reorganization by means of violence) embody 100% of the time. for instance, you cannot say "violence" because people who embody any of those attitudes at all are not being violent 100% of the time, certainly, although violence is definitely a necessary, critical feature of all of those states of society. also, it is probably not specific enough because, certainly, not all violence results in the same kinds of social change, nor on the same scale. I would also point out that the transfer of power from one group to another can contain either very select violence (i.e. assassinating a president) or wide-spread violence (the reign of terror), but both situations can lead to widespread political upheaval, although certainly of different kinds and of varying intensities. are there any shared elements between them all? if not, why do they seem so similar when considered side-by-side? is it just that they are all, in turn, viewed as horrific and necessary by everyone except those who are committing it, and even, in some cases, by those who do commit it ("yes, violence is horrific, but it must be done for the sake of humanity"). okay, so obviously THAT is a huge tangle of weeds, good luck hanging onto your morality in there! (jk, u can still have morality and think anything that you want to because the cops can't read your thoughts yet! stay safe out there, thinking of u and i hope u are blessed (yes, u! ❤️ haha) https://iwishtobealoneandwithoutsun.tumblr.com/post/618112485896142848/how-to-deal-with-bullies-america-2020-platos ####################################### p.s. i wonder when humanity will realize that they already act like a collective unconscious regardless of their beliefs on free will so lets just fast track consciousness computerization research so we can all hop into a computer world and onto a spaceship that looks exactly like earth (after a few generations, probably no one will care anyway tbh except historians and folk tale curators etc and future generations would even get used to simulation reality probably, eventually) p.p.s. you know how sometimes parents have wisdom even though they have NO IDEA what they are talking about most of the time? (oh btw, imagine that persisting out of your teens and until you are 31 but also with everyone in the world and u will imagine a little bit what it is like to have social-emotional agnosia. it is not as flat as that, since obviously people we are more familiar with are more well known to us, so people like parents and friends (this is a tough manual calculation on its own, btw, sorting friend from foe) will be easier for us to read, but still we will fuck it up, i fuck it up with my mom and she is who i have talked to most face-to-face in the world besides a specific therapist. i cannot interpret your face very easily or other fundamental social signifiers that you rely on to generate context for yourself for other people to understand you more easily. since i do not understand social contexts, i have only ever been able to relate to myself, mostly. now that i have managed to grasp an intuitive understanding of my place in social contexts, my life is much, much better for it. to illustrate what that kind of mental task feels like, please consider how you would describe a color to someone who had never perceived color in their entire life or seen light in any way at all, although they would still be sensitive to, i.e. heat from light. i don't care if this means that they have never seen anything or if they are just seeing white all the time or just one of any color really, just like, greyscale slider pls. if you really want to go nuts, try imagning that you have a disability that you don't actually have. imagine for a long time. how does it feel to you, for instance: colors are wildly important visual indicators for defining things like status and identity in society, for instance in fasion: hair style, hair texture, skin color, makeup brands, whether your color co-ordinate or not, how that relates to what other people around you are doing, etc. even if you don't like "fashion" and prefer more modest clothes in terms of style and/or material, such as myself i think, there are still people selling you specific clothes that look a specific way in order to match an aesthetic which makes you feel more comfortable just by wearing it for any of a number of reasons. in some situations, it is important to have the social context to understand that you got your clothes at a thrift store. in other social contexts, if it becomes apparent that you got your clothes at a thrift store, you are essentially homeless and not worth associating with. in other situations, no one cares where your clothes came from. in other other situations, people care exactly where your clothes came from. if you want to say that color is not, for instance, a huge feature of how we identify people based on clothing (among MANY other aspects), well, i am not sure what else you need me to prove at that point, so please let me know! haha! ##### Bird Time if it's easier for you to think in terms of birds, please consider the role that color plays in the sexual relationships of many birds. i.e. cardinals with dicks have brighter red feathers usually and cardinals with vjays usually have duller brown, same for peacocks. anyways, stuff like birds and rainbows would obviously be very different to you and have different significances to you depending on your ability to interact visually with the world. on the other hand, it's possible that someone could give a person enough context to understand that when a "rainbow" is described without color in text or whatever, could have enough emotional associations built up with the idea of a rainbow that they have simply simulated what a rainbow looks like in their head and approached the perspective backwardsly. you don't know! maybe im wrong! ah!

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365datascienceblog · 4 years

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Why Is Linear Algebra Useful in Data Science?

If you’ve been researching or learning data science for a while, you must have stumbled upon linear algebra here and there. Linear algebra is an essential part of coding and thus: of data science and machine learning. But even then, you may be compelled to ask a question…

Why is Linear Algebra Actually Useful?

Linear algebra has tons of useful applications. However, in data science, there are several very important ones. So, in this tutorial, we will explore 3 of them:

Vectorized code (a.k.a. array programming)

Image recognition

Dimensionality reduction

So, let’s start from the simplest and probably the most commonly used one – vectorized code.

Linear Algebra Applications: Vectorized Code (array programming)

We can certainly claim that the price of a house depends on its size. Suppose you know that the exact relationship for some neighborhood is given by the equation:

Price = 10190 + 223*size.

Moreover, you know the sizes of 5 houses: 693 sq.ft., 656 sq.ft., 1060 sq.ft., 487 sq.ft., and 1275 sq.ft.

So, what you want to do is plug-in each size in the equation and find the price of each house, right?

Well, for the first one we get: 10190 + 223*693 = 164729.

Then we can find the next one, and so on, until we find all prices.

Now, if we have 100 houses, doing that by hand would be quite tedious, wouldn’t it? Good thing we know how to code! One way to deal with that problem is by creating a loop. In Python that would look like:

house_sizes = [693, 656, 1060, 487, 1275] for i in house_sizes: price = 10190 + 223*i print (price)

Iterating over the sizes, we can reach a satisfactory solution.

However, we could be even smarter than that, couldn’t we? What if we knew some linear algebra?

Let’s explore these two objects:

A (5×2) matrix and a (2×1) vector. The matrix contains a column of 1s and another – with the sizes of the houses.

M =

[table id=6 /]

The vector contains 10190 and 223 – the numbers from the equation.

V =

[table id=7 /]

Therefore, if we go about multiplying them, we will get a vector of length 5 ((5×2) * (2×1) = (5×1)). The first element will be equal to:

1*10190 + 693*223

The second to:

1*10190 + 656*223

And so on:

[table id=8 /]

By inspecting these expressions, we quickly realize that the resulting vector contains all the manual calculations we tried to make earlier to find the prices.

Well, in machine learning and linear regressions in particular, this is exactly how algorithms work. We’ve got an inputs matrix; a weights, or a coefficients matrix; and an output matrix.

Without diving too deep into the mechanics of it here, let’s note something.

If we have 10,000 inputs, the initial matrix would be (10000×2), right? But the weights matrix would still be 2×1. So, when we multiply them, the resulting output matrix would be 10000×1. This shows us that regardless of the number of inputs, we will get just as many outputs. Moreover, the equation doesn’t change, as it only contained the two coefficients – 10190 and 223.

This concept is of paramount importance to machine learning, precisely because of its generality.

So, whenever we are using linear algebra to compute many values simultaneously, we call this ‘array programming’ or ‘vectorized code’. It turns out that vectorized code is much, much faster (than loops for instance). There are libraries such as NumPy that are optimized for performing this kind of operations which greatly increases the computational efficiency of our code.

Linear Algebra Applications: What About Image recognition?

In the last few years, deep learning, and deep neural networks specifically, conquered image recognition. On the forefront are convolutional neural networks or CNNs in short. But what is the basic idea? Well, you can take a photo, feed it to the algorithm and classify it. Famous examples are:

the MNIST dataset, where the task is to classify handwritten digits

CIFAR-10, where the task is to classify animals and vehicles

and

CIFAR-100, where you have 100 different classes of images

The main problem is that we cannot just take a photo and give it to the computer.

Therefore, we must design a way to turn that photo into numbers in order to communicate the image to the computer.

Here’s where linear algebra comes in.

Each photo has some dimensions, right? Say, this photo is 400×400 pixels. Each pixel in a photo is basically a colored square. Given enough pixels and a big enough zoom-out causes our brain to perceive this as an image, rather than a collection of squares.

Let’s dig into that. Here’s a simple greyscale photo. The greyscale contains 256 shades of grey, where 0 is totally white and 255 is totally black, or vice versa.

In fact, we can express this photo as a matrix. If the photo is 400×400, then that’s a 400×400 matrix. Each element of that matrix is a number from 0 to 255. It shows the intensity of the color grey in that pixel.

That’s how the computer ‘sees’ a photo.

But greyscale is boring, isn’t it? What about colored photos?

Well, so far, we had two dimensions – width and height, while the number inside corresponded to the intensity of color. What if we want more colors?

Now, one solution mankind has come up with is the RGB scale, where RGB stands for red, green, and blue. The idea is that any color, perceivable by the human eye can be decomposed into some combination of red, green, and blue, where the intensity of each color is from 0 to 255 – a total of 256 shades.

So, in order to represent a colored photo in some linear algebraic form, we must take the example from before and add another dimension – color.

Hence, instead of a 400×400 matrix, we get a 3x400x400 tensor!

This tensor contains three 400×400 matrices. One for each color – red, green, and blue.

And that’s how deep neural networks work with photos!

Linear Algebra Applications: Dimensionality Reduction

Assuming we haven’t seen eigenvalues and eigenvectors ever before, there is not much to say here, except for developing some intuition.

Imagine we have a dataset with 3-variables. Visually, our data may look like this. In order to represent each of those points, we have used 3 values – one for each variable x, y, and z. Therefore, we are dealing with an m-by-3 matrix. So, the point “i” corresponds to a vector X i, y i, and z i.

Note that those three variables: x, y, and z are the three axes of this plane.

Here’s where it becomes interesting.

In some cases, we can find a plane very close to the data. Something like this.

This plane is two-dimensional, so it is defined by two variables, say u and v. Not all points lie on this plane, but we can approximately say that they do.

And linear algebra provides us with fast and efficient ways to transform our initial matrix from mx3, where the three variables are x, y, and z, into a new matrix, which is mx2, where the two variables are u and v.

So, this way, instead of having 3 variables, we reduce the problem to 2 variables.

In fact, if you have 50 variables, you can reduce them to 40, or 20, or even 10.

But how does that relate to the real world? Why does it make sense to do that?

Well, imagine a survey where there is a total of 50 questions. Three of them are the following:

Please rate from 1 to 5:

I feel comfortable around people

I easily make friends

and

I like going out

Well, these questions may seem different, but in the general case, they aren’t. They all measure your level of extroversion. So, it makes sense to combine them, right? That’s where dimensionality reduction techniques and linear algebra come in! Very, very often we have too many variables that are not so different, so we want to reduce the complexity of the problem by reducing the number of variables.

Some Final Words…

While there are many different ways in which linear algebra helps us in data science, these 3 are paramount to topics that we cover in The 365 Data Science Program. So, feel free to read more about these use cases in our Linear Regression, PCA , and Neural Networks blog posts!

Ready to take the next step towards a data science career?

Check out the complete Data Science Program today. Start with the fundamentals with our Statistics, Maths, and Excel courses. Build up a step-by-step experience with SQL, Python, R, and Tableau. And upgrade your skillset with Machine Learning, Deep Learning, Credit Risk Modeling, Time Series Analysis, and Customer Analytics in Python. Still not sure you want to turn your interest in data science into a career? We also offer a free preview version of the Data Science Program. You’ll receive 12 hours of beginner to advanced content for free. It’s a great way to see if the program is right for you.

https://365datascience.com/linear-algebra-data-science/ #Python

#python #Python Tutorials

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elsnark · 7 years

Text

Here’s a play-by-play of my reactions to the new Yandere Simulator Video.

0:01 - You’re 3 years in development and you’re working on implementing the first rival. Why are you still in the planning stages?

0:21 - Y u talk so slow? This is torture.

1:01 - Story and characters are also what makes a game, well, a game. A product. Also, using Google define:

game·playˈɡāmplā/

noun

the tactical aspects of a video game, such as its plot and the way it is played, as distinct from the graphics and sound effects.

So... Uh... Story and characters are gameplay too...

1:21 - Because the story and characters are important aspects, too? Like? If they ain’t good, people are gonna speak up?

1:31 - Well I’m tired of your inability to write good characters and a good story. Maybe take some creative writing courses or, ya know, google how to write a good story and good characters. It’s not that difficult and with your $60k a year just from Patreon, you can afford some creative writing courses.

1:38 - How... how is the most bare bones story and protagonist possible good at all? Like? That’s so boring? I thought you wanted your game to be taken seriously?

1:51 - Uh... Um... Sorry to say, but... she’s a murderous psychopath... That isn’t exactly a “blank slate”. (Yes, he really does talk this slow)

2:27 - You ever think they... criticized you because it was all poorly written? That thought ever cross your mind? Also... IT’S FUCKING 4CHAN! THEY’RE GOING TO CRITICIZE EVERY LITTLE THING!

2:34 - Okay, cool, where’s that level of customization at in game? It don’t exist.

2:43 - Idk because there’s backstory maybe?

3:09 - I’m sorry, but I’m laughing at how he says “beauty”. It’s so funny to me.

3:48 - Why does the screen go pink when he’s around though? Like? Shouldn’t it be that everything’s greyscale and then when you’re around Senpai the world is filled with colors? Wouldn’t that be a better representation than the screen going pink?

4:17 - That all sounds a lot like backstory to me which I thought you wanted to avoid, but okay.

4:38 - You ever think that... when someone criticizes something it’s because... something seems off or is just too dumb? Did that thought ever occur to you? Also, “derail discussions about the game”? Uh... Aren’t... Aren’t characters and plot a part of the game?

4:55 - This all just sounds like you’d get more complaints to me. XD (why does he talk so slow omg)

5:03 - See? You dun fucked up and now it’s been years.

5:30 - Then she’s not a Yandere.

5:46 - No.

5:50 - A Yandere is literally someone who’s mentally unstable and would be very aggressive over their crush. She ain’t a Yandere since there’s no mental instability... and she doesn’t even like Senpai romantically.

6:04 - He’s stretching so far to make her be a Yandere since he himself has stated she’s not mentally unstable and she doesn’t even like Senpai romantically.

6:40 - ... Then why didn’t you just stick to that? Simple game where a schoolgirl kills people?

7:04 - To me, it sounds like you really don’t wanna work on YanSim. Just sayin’.

7:33 - 7 and a half minutes in and we finally got to the point.

7:41 - You mean insomnia and depression? He means insomnia and depression, right?

8:00 - You mean depression?

8:15 - That ain’t how depression works, but I guess this isn’t technically depression so I can get behind this I guess?

8:36 - Well this actually gives her motivation to do all this shit due to Senpai.

8:44 - She can join the club of clinical depression!

8:59 - This is a lie because he’d have to re-write the introduction cutscene and have her VA re-do it because she outright says, “I can’t feel anything”.

9:03 - Oh. He got to it. It’s just he talks so sloooooooooooooooooooooooooooow.

9:11 - AS MUCH AS I’M AGAINST THE FACT HE’S STILL IN THE PLANNING STAGES 3 YEARS INTO DEVELOPMENT, I THINK THIS CHANGE TO THE PROTAGONIST NEEDS TO HAPPEN

9:27 - Well I sure as hell don’t care about Senpai since he’s as bland as tofu so Yandere-chan, in her current state, isn’t even a good vessel since you get a game over for not caring about Senpai. Give her her own personality so I, as a player, have a reason to give a damn about Senpai.

9:39 - Not really when she’s... this... uninteresting...

10:50 - Okay, but... that’s... still fine? By her mother saying things like, “oh, you’ll find someone to help with that” and helping her obsess over the idea for years, it gives her a reason to want to do anything necessary to obtain this person. She also has a father who would probably try to ensure she doesn’t turn out to be violent. So like... although it’s ultimately the player’s decision, there’d be backstory as to why she could be violent or not violent.

11:31 - THIS IS HOW PLACEHOLDERS WORK, YOU DUMB FUCK! YOU DON’T USE ART YOU LACK PERMISSION TO USE, YOU USE ART YOU HAVE PERMISSION TO USE! YEAH, IT’S KINDA WEIRD THAT YANDERE-CHAN’S MOM AND HER GRANDMA AND GREAT-GRANDMA ALL HAVE THE SAME SILHOUETTE, BUT WHATEVER! THIS IS A PLACEHOLDER DONE PROPERLY! GLAD YOU FUCKING LEARNED!

11:36 - Origin for the condition? Were they cursed by a demon? It seems like they were cursed by a demon.

11:48 - Oh, so it’s more than just he sat in the protagonist chair? Okay.

11:59 - You want me to suck your dick for making a plot? I’m not gonna.

12:10 - I’m still not sucking your dick for making a plot.

12:27 - We all know Fureddo Jonzu is just Fred Jones from Scooby Doo. That’s not any “hidden depth”. That’s just copyright infringement.

13:24 - This is your fancy way of saying, “I’m still in the planning stages and have no idea what the fuck I’m doing”.

14:06 - Her name’s Snob Snob. It makes sense for her to copy someone else.

14:33 - Okay, but... Her name is literally Snob Snob. She doesn’t have to be likable unless you’re going for irony?

14:50 - I seriously only heard, “I’m still in the planning stages and have no idea what the fuck I’m doing”.

15:14 - So... Like... Mitsuru Kirijo from Persona 3?

15:36 - “I’m still in the planning stages and have no idea what the fuck I’m doing.” - YandereDev basically

15:54 - “Can someone tell me how to make a game because I don’t know how.” - YandereDev basically

✧Sourcream

#yandere simulator #yanderedev #the sourcream #not elsword

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howdidyoufindthis · 3 years

Text

Their stomach growled.

“Yeah, yeah, I know!” Greyscale said, “I’m trying to find something! Can’t you have any pa-”

They looked up as they hollered and noticed some smoke in the sky, above the surrounding brick buildings.

“Oh, what now, a fire-?”

Behind it was a large building with the words “DELTAMART” displayed proudly over a set of clear doors, standing tall and sure in the light of day. A grocery store! That’s just what they needed!

“Actually, I don’t think we’ll have to wait for much longer,” Greyscale said.

Greyscale drooled a little with wide eyes.

They anxiously waited until there were barely any people near the doors, and anyone that was there appeared too thoroughly occupied to notice anything sneaking in.

They whispered, “the coast is clear!”

The creature sprang from their hiding spot and scrambled ins-- wait, no, nevermind, they just bonked headfirst into the glass door.

A first-time customer in a nearby checkout aisle got startled out of her waiting stupor and looked over to the sliding doors. Nothing was there.

“Did you hear that?” she asked.

“I hear everything,” said cashier #23,457, mid-scan of a bag of milk with one of his hands.

Understandably, that monotone answer concerned the customer, but she tried to brush it off. She just needed some milk for a recipe quick, and this was the closest store to her house.

“So-- Um,” she pressed on, “what about that thud from outside?”

Warily, she took the bag.

“You’re... not going to check on th-”

“H-H-Have a good day!” He said.

Now truly weirded out, she quickly said, “alllright thenIwill!” and walked out as fast-yet-also-not-running as she could.

It’s safe to say she’ll make the effort to not come back.

Seeing their chance, Greyscale scurried in under an exiting woman’s line of sight before the glass doors closed behind her.

During this act of stealth and agility, they noticed an aisle with no people in it full of candy from atop a set of shelves.

“Aw, how sweet of fate!” they mused.

Among the midst of the corporately pleasant music playing throughout the store, its jingle chimed in.

It sang, “De-De-deee de DelllltaMart, you have NO ideea what’s in STORE for YOU-u-u!”

They noticed the jingle and stopped their snacking to chuckle.

“You’re right about that,” they said, “I wonder what other good stuff this place has!”

They focused back on their bag of Candy Spiders (Now With 70% More Spiders!), just in time to notice one of the confections moving amongst its kin with its bone-pick legs.

A shocking moment of registration passed. They yelped at the realization and threw the bag away from themself as far as they could.

They sputtered, “Did-- did that--? No-”

They paused and slunk back up to the bag, warily.

The bag was motionless.

Slowly, cautiously, they batted it with their paw. They reeled it back away from the bag, as if it might jump up and bite them. Still, nothing inside moved.

They blinked a couple times and began to doubt what they thought they saw.

“Huh, h-ha, maybe this candy’s expired..” they said.

Out from under the side of a display pyramid of apples behind them, a glitching, writhing tentacle rose to inspect its produce.

Greyscale felt a couple of taps on their back and jumped, then turned to face-

“aAh-!!”

Oh nonono, they shook the shock from that off and sprinted left into an aisle, only to see one of the store workers pulling can after can out of his mouth to put on the shelves.

They quickly turned again to climb up a shelf from the opposite side of the aisle as fast as they could. They really, really, really shouldn’t be here-

“NononononoIcan’tbetrappedthere’sgottabeaneXIT-”

The owner of those legs, a tall, nicely dressed woman, looked down at whatever had bumped into her.

Greyscale screamed and ran as soon as they realized they got noticed yet again.

“Huh…” she said, “one of the fish they’re selling must’ve got out again.”

She shrugged and continued to read the label of some canned wood she grabbed from a shelf of assorted canned inedibles.

“There’s…” they huffed, “no one.. there…?”

Upon that realization, they slowed down even more, but that wasn’t enough to keep them from losing their footing on a pipe nestled into the glittering ground.

“HuhuUuAH-!”

They were then aware, horrified, of the unavoidable fact that they were now utterly, hopelessly lost.

“De-De-deee de DelllltaMart, you have NO ideea what’s in STORE for YOU-u-u!”

Their heart sank.

“Oh no-”

#Greyscale

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