"An artificial brain has taught itself to estimate the number of objects in an image without actually counting them, emulating abilities displayed by some animals including lions and fish, as well as humans. Because the model was not preprogrammed with numerical capabilities, the feat suggests that this skill emerges due to general learning processes rather than number-specific mechanisms. "It answers the question of how numerosity emerges without teaching anything about numbers in the first place," (...)"
- Amira
from Bookmarklet
"In response to each image, the program strengthened or weakened connections between neurons so that its image generation model was refined by the pattern it had just "seen". Zorzi likens it to "learning how to visualise what it has just experienced". Infants demonstrate ANS without being taught, so the network was not preprogrammed with the concept of "amount". But when Zorzi and...
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- Amira
"More than 500 million years ago, single-celled organisms on Earth’s surface began forming multi-cellular clusters that ultimately became plants and animals. (…) The yeast “evolved” into multi-cellular clusters that work together cooperatively, reproduce and adapt to their environment—in essence, they became precursors to life on Earth as it is today. (…) How one-celled organisms made the switch to living as a group, as multi-celled organisms.” (…) Analysis showed that the clusters were not just groups of random cells that adhered to each other, but related cells that remained attached following cell division."
- Amira
from Bookmarklet
"That was significant because it meant that they were genetically similar, which promotes cooperation. When the clusters reached a critical size, some cells died off in a process known as apoptosis to allow offspring to separate. (...) “A cluster alone isn’t multi-cellular,” “But when cells in a cluster cooperate, make sacrifices for the common good, and adapt to change, that’s an...
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- Amira
"It’s important to note that more complex doesn’t necessarily mean better. (...) Evolution only leads to increases in complexity when complexity is beneficial to survival and reproduction. Indeed, simplicity has its perks: the more simple you are, the faster you can reproduce, and thus the more offspring you can have. Many bacteria live happy simple lives, produce billions of offspring,...
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- Amira
"The world’s smallest magnetic data storage unit is made of just 12 atoms, squeezing an entire byte into just 96 atoms, a significant shrinkage in the world of information storage. It’s not a quantum computer, but it’s a computer storage unit at the quantum scale. By contrast, modern hard disk drives use about a million atoms to store a single bit, and a half billion atoms per byte. Until now, it was unclear how many (or how few) atoms would be needed to build a reliable, lasting memory bit, the basic piece of information that a computer understands. Researchers at IBM and the German Center for Free-Electron Laser Science decided to start from the ground up, building a magnetic memory bit atom-by-atom. They used a scanning tunneling microscope to create regular patterns of iron atoms aligned in rows of six each. They found two rows was enough to securely store one bit, and eight pairs of rows was enough to store a byte. (...) “If you take a single atom, you have to look at quantum mechanics when you describe its behavior,” (...)"
- Amira
from Bookmarklet
10^80 atoms in the universe, so after FF -- we need to start digesting 10^78 bits of information :-)
- Adriano
According to Wolfram it's 1,25 X 10^68 GB of information... I'll better stay with my 1 to 3 posts a day... ;-) Take a look also here (article from yesterday): 'Scientists Create World's Tiniest Ear' -- "Have you ever wondered what a virus sounds like? Or what noise a bacterium makes when it moves between hosts? If the answer is yes, you may soon get your chance to find out" http://news.sciencemag.org/science...
- Amira
“Metaphor is a fundamental mechanism of mind, one that allows us to use what we know about our physical and social experience to provide understanding of countless other subjects. Because such metaphors structure our most basic understandings of our experience, they are “metaphors we live by”—metaphors that can shape our perceptions and actions without our ever noticing them. (…) We are neural beings, (…) our brains take their input from the rest of our bodies. What our bodies are like and how they function in the world thus structures the very concepts we can use to think. We cannot think just anything – only what our embodied brains permit. (…) The mind is inherently embodied. Thought is mostly unconscious. Abstract concepts are largely metaphorical.”
- Amira
from Bookmarklet
K. David Harrison, When Languages Die. The Extinction of the World’s Languages and the Erosion of Human Knowledge, Oxford University Press, 2007 (pdf) http://www.cs.swarthmore.edu/~meeden...
"It is commonly agreed by linguists and anthropologists that the majority of languages spoken now around the globe will likely disappear within our lifetime. The phenomenon known as language death has started to accelerate as the world has grown smaller. "This extinction of languages, and the knowledge therein, has no parallel in human history. K. David Harrison's book is the first to focus on the essential question, what is lost when a language dies? What forms of knowledge are embedded in a language's structure and vocabulary? And how harmful is it to humanity that such knowledge is lost forever?" http://www.amazon.com/When-La...
- Amira
"Runners and cyclists can tolerate heat and cold but the thing they dislike most is wind. They know it produces slower lap times on loop courses. Can we show them why? (...) This asymmetry enables us to understand why it is always harder running laps in the wind than in windless conditions: you never gain from the tailwind what you lose into the headwind. (...) The best racing strategy for runners in races that cover many laps is also clear. When you are running into the wind you should try to shelter behind other runners to avoid feeling the full force of the wind. Most runners appreciate this slip-streaming trick but they often don’t recognise the other part of the optimal strategy. When the wind is behind you, move out to make sure there is no one directly behind you shielding you from feeling the full benefit of the tailwind. This won’t make running in the wind easier for you than when the air is still but it will make it easier than it is for your rivals."
- Amira
from Bookmarklet
"Neuroimaging studies on moral decision-making have thus far largely focused on differences between moral judgments with opposing utilitarian (well-being maximizing) and deontological (duty-based) content. However, these studies have investigated moral dilemmas involving extreme situations, and did not control for two distinct dimensions of moral judgment: whether or not it is intuitive (immediately compelling to most people) and whether it is utilitarian or deontological in content. By contrasting dilemmas where utilitarian judgments are counterintuitive with dilemmas in which they are intuitive, we were able to use functional magnetic resonance imaging to identify the neural correlates of intuitive and counterintuitive judgments across a range of moral situations. Irrespective of content (utilitarian/deontological), counterintuitive moral judgments were associated with greater difficulty and with activation in the rostral anterior cingulate cortex, suggesting that such judgments may...
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- Amira
from Bookmarklet
"The goal of object detection is to find an object of a pre-defined class in an image. In this post we will see how to use the Haar Classifier implemented in OpenCV in order to detect faces and eyes in a single image. We are going to use two trained classifiers stored in two XML files..."
- imabonehead
from Bookmarklet
"A powerful telescope affording a view of the universe unmatched by most ground-based observatories gazed onto distant galaxies for the first time Monday from deep in Chile's Atacama desert. The Atacama Large Millimeter/submillimeter Array, a joint project between Canada, Chile, the European Union, Japan, Taiwan and the United States, officially opened for astronomers after a decade of planning and construction."
- imabonehead
from Bookmarklet
iYİ Kİ DOĞDUN AY'DAN GELEN AYDAN BACIMMMM.... Kusura kalma, geç kaldım. Ama seni çok çok seviyorum. İyiki varsın hayatımda benim can dostum bacım, İyi ki doğdun sen :)
"Researchers at Cornell University have made an astounding leap forward in cloaking technology. While other teams have been working on what have been traditionally seen as “invisibility cloaks” – using meta-materials to hide an object from visible light — this team has been working on something a bit more ambitious: hiding an actual event in time. (...) They’re taking advantage of the fact that, according to current theories in physics, time and space are equivalent – and instead of focusing on changing the shape of light, they’re focused on changing its time. The researchers began their experiment by creating two time lenses. (...) The time lenses that were created for this experiment were split time lenses. Essentially, two halves of a lens were placed so that the points met in the middle. There was one split time lens on one side of the cloaked event and another split time lens on the other side. A laser was then passed through the first time lens. This dispersed the light around...
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- Amira
from Bookmarklet
"The mathematics of quantum theory has something to say about the nature of human thinking. (...) “Quantum” mathematics really isn’t owned by physics at all, and turns out to be better than classical mathematics in capturing the fuzzy and flexible ways that humans use ideas. “People often follow a different way of thinking than the one dictated by classical logic,” “The mathematics of quantum theory turns out to describe this quite well.” (...) People aren’t logical, at least by classical standards. But quantum theory, Aerts argues, offers richer logical possibilities. (...) “Quantum probabilities have the potential to provide a better framework for modelling human decision making,” (...) “The structure of human conceptual knowledge is quantum-like because context plays a fundamental role,” (...) How search engines retrieve information. (...) “We often rely on hunches, and traditionally, computers are very bad at hunches. This is just where the quantum-inspired models give fresh...
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- Amira
from Bookmarklet
"Why should quantum logic fit human behaviour? The reason is to do with our finite brain being overwhelmed by the complexity of the environment yet having to take action long before it can calculate its way to the certainty demanded by classical logic. Quantum logic may be more suitable to making decisions that work well enough, even if they’re not logically faultless. “The constraints...
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- Amira
Already on my list. :-) What do you think of it? I'm really liking it.
- Kol Tregaskes
Seems exactly like Facebook. Not terribly exciting.
- Vezquex
The big difference between Facebook and Google+ (that I can see from a very quick look) is that you can share to certain groups of friends instead of ALL of them. And that you can create many groups. The Sparks feature looks very interesting and I really do like the UI.
- Kol Tregaskes
@Kol, sharing with specific groups of friends possible with Facebook. You can list your friends and then hide a post from lists or show it only to those lists.
- batuhan icoz
Sounds long-winded? Either way I prefer Google+ over Facebook (a lot more) but I'm not sure it's as good as FriendFeed. Saying that I think it's only time I'll move to Google+. Like I say a lot on here, it's all down to the people and I see a LOT of FriendFeeders over there there already. The features are important too (though secondary) and I hear the Google dev team are adding new things all the time.
- Kol Tregaskes
I don't have one yet. I'm lost at the trailing edge of technology.
- Nick B.
You've been able to create groups of Facebook friends to selectively share for a while. They just don't make it intuitive to use. (edit - I see Batuhan already said this). It's under Friends -> Create a list.
- Nick B.
The Optimism Bias and Memory. The core function of memory is not to perfectly replay past events, but to imagine the future - http://aminotes.tumblr.com/post...
"To make progress, we need to be able to imagine alternative realities — better ones — and we need to believe that we can achieve them. (…) A growing body of scientific evidence points to the conclusion that optimism may be hardwired by evolution into the human brain. (…) Our brains aren’t just stamped by the past. They are constantly being shaped by the future. (…) Memories are susceptible to inaccuracies partly because the neural system responsible for remembering episodes from our past might not have evolved for memory alone. Rather, the core function of the memory system could in fact be to imagine the future (…) The system is not designed to perfectly replay past events. (…) It is designed to flexibly construct future scenarios in our minds. As a result, memory also ends up being a reconstructive process, and occasionally, details are deleted and others inserted.”
- Amira
from Bookmarklet
Excellent article, thanks for posting this.
- Dick Pelletier
Cecilia Cheung’s demands properties and sole custody of kids.It has been almost two months since Nicholas Tse and Cecilia Cheung's marriage woes started. Though all seems calm on the outside, the pair is no longer on speaking terms and instead have lawyers negotiating on their behalf now.
that was a really spirited match !! Con'garts to Japan for fighting till the last minute !!
- Peter Dawson
thank you, Peter! ..... This victory is very good news for the people of Japan shocked by the huge earthquake and tsunami. She gave us really good luck.
- keiko-san