19
votes
Accepted
What activation function does the human brain use?
The thing you were reading about is known as the action potential. It is a mechanism that governs how information flows within a neuron.
It works like this: Neurons have an electrical potential, ...
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12
votes
Accepted
How are Artificial Neural Networks and the Biological Neural Networks similar and different?
We all know that artificial neural networks (ANNs) are inspired by but most of them are only loosely based on the biological neural networks (BNNs).
We can analyze the differences and similarities ...
11
votes
Accepted
How powerful a computer is required to simulate the human brain?
H+ magazine wrote an estimate in 2009 that seems broadly comparable to other things I've seen; they think the human brain is approximately 37 petaflops. A supercomputer larger than that 37 petaflop ...
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7
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In 2016, can $1000.00 buy enough operations per second to be approximately equal to the computational power of a human brain?
The development of CPUs didn't quite keep up with Kurzweil's predictions. But if you also allow for GPUs, his prediction for 2009 is pretty accurate.
I think Moore's law slowed down recently and has ...
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6
votes
What activation function does the human brain use?
The brains of mammals do not use an activation function. Only machine learning designs based on the perceptron multiply the vector of outputs from a prior layer by a parameter matrix and pass the ...
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6
votes
How powerful a computer is required to simulate the human brain?
The human brain contains about 100 billion neurons ($10^{11}$) and about a hundred trillion synapses ($10^{14}$). Each neuron can fire about 100 times a second. If we model the brain as a simple ...
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6
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Are there any artificial neuromorphic systems which can mimic the brain?
Vernor Vinge said that if we can scan a human brain and then simulate it: We can run it at 1000 times the speed. The brain will be able to do 1000 years of thinking in 1 year ect.
At this stage in ...
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5
votes
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What makes the animal brain so special?
One probable hardware limiting factor is internal bandwidth. A human brain has $10^{15}$ synapses. Even if each is only exchanging a few bits of information per second, that's on the order of $10^{...
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5
votes
How are Artificial Neural Networks and the Biological Neural Networks similar and different?
They are not close, not anymore!
[Artificial] Neural Nets vaguely inspired by the connections we previously observed between the neurons of a brain. Initially, there probably was an intention to ...
5
votes
Accepted
What is the importance of the endocannabinoid system for cognitive function?
The release of Adenosine, Dopamine, Endorphin, Endocannabinoids, GABA, Glutamate, Norepinephrine, Oxytocin, Serotonin, and many others into specific regions of the brain are very likely an essential ...
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4
votes
Accepted
Are convolutional neural networks inspired by the human brain?
Yes, CNNs are inspired by the human brain [1, 2, 3]. More specifically, their operations, the convolution and pooling, are inspired by the human brain. However, note that, nowadays, CNNs are mainly ...
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4
votes
Accepted
Is there research that employs realistic models of neurons?
State of Rosehip Research
The Rosehip neuron is an important discovery, with vast implications to AI and its relationship to the dominant intelligence on earth for at least the last 50,000 years. ...
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4
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Is there research that employs realistic models of neurons?
It looks like you really have two questions here. I'll try to answer the first one, and you should think about making a separate question for the second.
There is research into using simulated models ...
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3
votes
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Are AI algorithms capable of self-repair?
Good question. It is related to the genetic algorithm concept, automated bug detection, and continuous integration.
Early Genetically Inspired Algorithms
Some of the Cambridge LISP code in the ...
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3
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Is there research that employs realistic models of neurons?
It is true that the current Machine learning is based on treating neurons as a component in the whole complexity , mesh of neurons. The focus is more on the architecture rather than understanding or ...
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3
votes
Does the human brain use beam search for text generation?
I thought the answer might be no.
In this 2020 ICLR paper: The Curious Case of Neural Text Degeneration, researchers found that beam search text is less surprising compared to human natural language....
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3
votes
Are AI algorithms capable of self-repair?
Yes, this was an active area of research in a number of different AI fields.
Probably the most directly related work is Bongard, Zykov & Lipson's self-repairing robots from the early 2000's.
...
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3
votes
How are Artificial Neural Networks and the Biological Neural Networks similar and different?
The common statement that Artificial Neural Networks are inspired by the neural structure of brains is only partially true.
It is true that Norbert Wiener, Claude Shannon, John von Neuman, and others ...
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3
votes
Are there any artificial neuromorphic systems which can mimic the brain?
Neuromorphic engineering offers various of ways of reproducing the brain’s processing ability.
The recent technology can include IBM's multi-artificial-neuron computer, the world's first artificial ...
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2
votes
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If we achieve sentience using mutable hardware, will it be possible to make a copy of that "brain" and its active state?
Theoretically, there shouldn't be a problem copying either of the artificial brains in any state.
Difficulty in measuring a state doesn't seem to really be a problem until you get down to the ...
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2
votes
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Is it possible to build an AGI with neural networks on neuromorphic chips?
No. The reasons include but are not limited to:
lack of understanding of how the brain works
current ANNs are mostly good at pattern recognition and generative tasks, but lack the capacity to ...
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2
votes
In 2016, can $1000.00 buy enough operations per second to be approximately equal to the computational power of a human brain?
Yes, we do have computing systems that do fall in the teraFLOPS range (where 1 teraflop = 1 trillion FLOPS = $10^{12}$ FLOPS)
The human brain is a biological system and saying it has some sort of ...
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2
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How powerful a computer is required to simulate the human brain?
Not just how much, but what kind of processing power : there're specially-crafted dedicated chips, and it has a practical applications, so it's not a lab-only project
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2
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What makes the animal brain so special?
This has been my field of research. I've seen the previous answers that suggest that we don't have sufficient computational power, but this is not entirely true.
The computational estimate for the ...
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2
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Are my steps correct for a proper classification of a sick brain?
It looks like everything you want is available with the Deep Learning Toolkit (DLTK) for Medical Imaging
There is also a blog: An Introduction to Biomedical Image Analysis with TensorFlow and DLTK
...
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1
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Are convolutional neural networks inspired by the human brain?
In the eye, the retinal ganglion cells have a receptive field that is equivalent to some types of convolution filters, most of them edge detectors.
The brain is a big unknown, nobody knows how it does ...
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1
vote
Have any AI's been able to decode human vision 'thoughts'
There have been studies in University of Oregon and Kyoto University to be able to visualise thoughts and dreams on a screen using voxel values of an FMRI scan as input and an estimation of an image ...
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1
vote
Accepted
Is there any paper, article or book that analyzes the feasibility of acheiving AGI through brain-simulation?
The Title Question
Is there any paper, article or book that analyzes the feasibility of achieving AGI through brain-simulation?
Yes. There are various analyses that have been published. We have some ...
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1
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Are AI algorithms capable of self-repair?
The question and the example are a few contradictory.
The example is about a physical brain damage. Computer systems with the ability to self-repair exists from 1970's. They can repair a damaged disk ...
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1
vote
What activation function does the human brain use?
The answer is We do not know. Odds are, we will not know for quite a while. The reason for this is we cannot understand the "code" of the human brain, nor can we simply feed it values and get results. ...
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Only top scored, non community-wiki answers of a minimum length are eligible