Tuesday, May 16, 2017

Tasting Rainbows




We typically think of the senses as being pretty discrete. Sure you can ‘feel a bright color,’ or ‘see a loud necktie,’ but we mostly consider the senses to be separate (unless we’re on acid, or sleep-deprived, or Salvadore Dali). Here’s an example to the contrary, where a photoreceptor gene was found hanging out with a bunch of taste genes. News like this makes us reconsider what it means to see, to hear, and to sense the world in general.


Tasting light: New type of photoreceptor is 50 times more efficient than the human eye

“The new receptor protein, LITE-1, was found among a family of taste receptors in invertebrates [i.e. insects]”

POST SCRIPT
Don’t forget the guy who can see with his tongue. Taste the rainbow!

Wednesday, May 10, 2017

Investigating the Artificial Unconscious in Reverse

aka Inceptionism vs. Trypophobia

this is what happens when a computer is asked to dream about the above images...

[I make no apologies for reposting this year-old stuff from my previous blog; this is still the coolest thing to happen to the art world since Malevich’s Black Square.]

Investigating the artificial unconscious is a primary objective for Hidden Scents, and was instigated by the popularization (or neuro-popping) of deep learning neural networks. This “newfound” form of computation is contributing loads of media-worthy content to the datasphere, but it’s also starting to make an impact on the culture-at-large in a more visceral way, via the activation of Google’s Deep Dream and its subsequent geek porn for art nuts – Inceptionism.

Let’s begin with a description from the Google engineers themselves:

“Each layer of the network deals with features at a different level of abstraction, so the complexity of features we generate depends on which layer we choose to enhance. For example, lower layers tend to produce strokes or simple ornament-like patterns, because those layers are sensitive to basic features such as edges and their orientations.”

"...overinterpret [...] oversaturated with snippets of other images."

And a deeper analysis by the masters of MindHacks:

“…by using the neural networks “in reverse” they could elicit visualisations of the representations that the networks had developed over training.

…pictures are freaky because they look sort of like the things the network had been trained to classify, but without the coherence of real-world scenes.

The obvious parallel is to images from dreams or other altered states – situations where ‘low level’ constraints in our vision are obviously still operating, but the high-level constraints – the kind of thing that tries to impose an abstract and unitary coherence on what we see – is loosened. In these situations we get to observe something that reflects our own processes as much as what is out there in the world.”

***
Deep learning neural networks are a kind of reverse algorithm. Using a very broad definition, an algorithm is a set of instructions written by a programmer. The program, or algorithm, instructs the computer in the solving of a problem. As it relates to artificial intelligence and visual object recognition, a plain-old algorithm starts with a database of objects and features. Red things, round things, fuzzy things, and flat things. Higher features, like “automobile” or “person” won’t be recognized until after the lower features. How does the system decided whether the automobile is a firetruck or an ambulance? More features in the database means more specific recognition. This mass of features is thus organized in a hierarchy, as determined by the algorithm.

In a “neural net”, this (relatively) new kind of algorithm, it’s like the hierarchy is not yet organized; the organization of the feature-layers is done during the act of recognition. Because it is not written in advance, in the way of a typical algorithm, and because it actually works backwards relative to the typical mode of operation, neural nets are seen as a very novel, and potentially disruptive approach to artificial intelligence. In the midst of the stern warnings from on-high against total AI takeover, a sensory recognition system that teaches itself sounds especially portentous.

(Let the reader note that 1. Neural nets have been around since the beginning of AI research, and 2. They do still require training b humans in order to work; they need to be encoded with their own database of pictures and descriptions, on e of the most widely used being AI Sentibank.)

This deep learning approach, as artificial as it is, is more akin to the process of our unconscious mind, as opposed to the more rational, conscious mind. We cannot tell our unconscious mind what to do, it works the other away around. This is what makes such a fitting subject in a discussion about olfaction. To smell is the closest thing we have to glimpsing the unconscious mind at work, and brings us to the next subject of interest, that of hallucinations.

***
Inceptionism is a hallucinating computer. It uses the 'reverse' algorithm' approach of deep learning, and turns it back on itself, favoring pure visual sensation over a “unitary coherence”. Without the organizing principles of abstract, conceptual models, the world is a phantasmagoria, a synesthetic mess of confusion.

Oliver Sacks does a wonderful job at describing this world in his 2012 Hallucinations. In his pages, we see in working detail how the brain makes sense of the world, and how that process can go awry. He even has a chapter on the osmic family – anosmia, dysosmia, phantosmia, etc.

In closing, deep learning neural networks are a lot like the olfactory-perception system. And olfaction is unavoidably hallucinatory. Far afield, when a computer can dream about smells and not just visual imagery, I doubt it will be as interesting as this here Inceptionism. To smell is already a kaleidoscope of sensation, undulating, refracting, and redintegrating*. We experience Olfactive Inceptionism on a daily basis.

*Redintegration is the restoration of the whole of something from a part of it. If you typically associate citrus scents with cannabis, you may eventually smell (hallucinate) cannabis when only citrus is present.

Post Script:

Post Post Script:

Speaking of dreams, smell tends not to make an impact in that arena.

Saturday, May 6, 2017

Case Closed

image source

It doesn’t matter, when people want to believe something is true, it’s true. So you can keep buying mind-controlling perfumes all you want. Maybe it gives you confidence. And confidence is sexy, right? Right??

I can’t help but recall an article sent to me by a friend, it was from Cosmopolitan magazine, about a girl who made a perfume out of her vaginal secretions and then “experimented” with its effects, concluding that it may or may not have worked (science, in the world of Cosmo).

Anyway, something to know when considering pheromones. Humans and animals differ in the way the smell because we do not have a functioning vomeronasal organ. This is the "other" nose-brain. Pheromones, which are mind-controlling chemosignals, will make, uncontrollably, a female pig assume a mounting position in waiting for a male pig (because in the presence of this particular pig sex pheromone, she assumes she is also in the presence of a sex-minded male pig). She can't control her reaction; it's hardwired, and hard-wired means vomeronasal smelling. We don't smell that way.

In fact, one of the things that makes smell so interesting, for humans at least, is that there is no hardwiring, for anything. Kids need to be told that bad smells are bad (m'kay?). As well, adults need to learn that good smells are good. This doesn't mean that some smells can seem to take over your mind and body.

For me, the smell of spraypaint (and thus my younger years as a graffiti writer) makes me crazy, literally sparking a rush of adrenaline through my body that simulates the 'running from the cops' body-state normally associated with that smell. For you, the smell of your early-twenties sex partner (the one associated with daily, consistent, persistent, uncontrollable animal sex) might make you feel some kind of way. Unfortunately (or fortunately) you can't buy that smell in the paint aisle at Home Depot). Bottom line is, you also can't buy that smell on a website that promises eternal sex magnet status.


Mar 2017, phys.org

Thursday, May 4, 2017

Subjective Cartography

Where you at? I’m at 5-spice, north of Orange Peel.

Mar 2017, BBC

The image I have above is from NYC 2011, but Kate McLean nonetheless. And now she’s going even further with her work. Artist and designer Kate McLean from Canterbury Christ Church University is now using her smellmaps to indicate pollution emissions. At the nexus, however, is language – that is, the words used to describe these places. I cut a piece here from the BBC article because it emphasizes this is the most interesting part, for me. For the project as well, it’s a serious point to consider.

“Clicking on a street on the London map allows you to zoom in and see how people have described the area, using terms related to emissions, nature, food, animals or waste.

“So where people have tagged pictures with words including "cars" or "petrol" or "exhaust", these would be classified as emissions-related in the system and the map would show more red.

“But can something built on people's subjective impressions of what they're smelling bear any relationship to objective data on air quality?

"Some people might say you're using social media, it's biased so you're just capturing most of the hipsters in East London," said Daniele Quercia, the computer scientist from Bell Labs who led the study.

So, for example, what happens if a bunch of Londoners come to New York and do this? What does the '5-spice' neighborhood of NYC smell like to a Londoner? And can we compare those maps? Now we’re talking.

Wednesday, May 3, 2017

Odor Camouflage


random perusals of the internet reveal:
Stench can also be used by the military as a decoy. For example, during America’s Civil War the union army used the odor of burning wood and the sound of banging in wooden barrels on the banks of the Tennessee River to convince the Confederate army that boat building was going on. So the Confederate army turned its attention to that area of the river, and the Union army crossed at another.

in other news:
Iran has developed a “Deceit Perfume” that masks the odor of gunpowder with weather-related scents.


Monday, May 1, 2017

Waiting for Both

How is this meme both ‘why not both’ and ‘aliens’ at the same time? Because both.

Mar 2017, BBC

“IBM has made its quantum computing system commercially available to businesses and beefed up an existing system used by the research community. … The firm is hoping to boost the numbers of people able to use such computers.”

The thing that makes quantum computers special is superpositioning, which is when a bit is both one and zero at the same time (and these bits are called qubits). Kind of like the smell of isovaleric acid, which is considered both good and bad ‘at the same time,’ or in other words, when one hundred people are asked what is smells like, half say really good and half say really bad, and this is more than uncommon in the world of smells that people – or a population rather – would be so split on such extreme responses


Anyway, imagine a day when every person has their very own personal quantum computer in their homes. When superpositioning becomes a household concept, the language of smell will be considered in more depth.

Wednesday, April 26, 2017

Thinking About Phylogenetics


Before you read this you should probably look around, to the left, and to the right. Every time you turn your head to one side or another, there is a part of your brain whose job it is to tell another part of your brain that your whole body is not spinning in circles, but only your head.

In other words, inside us is very old, hard-wired circuitry that still thinks our head is fixed to the rest of our bodies. Think about it – Necks are a pretty recent development. The first animals had no necks. Worms, fish – no necks. If their head was turning to the side, it meant their body was turning with it. Even eyes were developed after necks. Nowadays, when you, homo sapiens, turn your head to the side, one part of your brain cross-references with many other parts to check whether it is the entire head-body, or just the head: the eyes give data, the muscles of the neck especially, but also many other muscles of the body give information to help figure out what is actually happening.

You should be asking, why, after millennia of necks, have we not gotten rid of the automatic neural response to head movement which assumes the head and body are one? So much extra work to cancel out the false assumption… How is it that we still hold onto this little bit of circuitry, how is it that we haven’t gotten around to evolving our way out of this?

The answer is phylogenetics. The functioning of a brain is a palimpsest, or a city. Once the foundation is laid, it doesn’t change. You can work-around and retro-fit, but you cannot re-write. This creates all kinds of confusing and embarrassing problems where very old forms and functions end up mismatched with their current context. Smelling, certainly, is one of these things.

[Inspired by a Robert Sapolski lecture on human biology.]