If you have ever filled an online form, you are bound to have encountered a CAPTCHA.
CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. I haws been named after the computer scientist Alan Turing.
What is a Turing Test?
Turing test is used by humans to see if a machine can converse like a human. The turing test has evolved to an interesting concept. Today, its a scenario in which a human interrogator uses some sort of interface, often a computer terminal, to communicate with someone else. This some one else could be a another computer program or a human being.If a computer program manages to fool most of the human interrogators into believing that it's a human, the program is said to have the turing test.
The CAPTCHA test is a turing test designed as a short hand for a gateway that allows humans to pass through while keeping machines at the border. The idea of a CAPTCHA is to build something which is simple for a human being to decipher while difficult for a machine to do so. This is important because it does not do any good if it discourages humans to fill out the said firm.
There are a few things a software can do better than humans, like driving a car or playing a game of chess under normal circumstances, but there are still things that humans can do better, at least that's how things stand today.
A simple CAPTCHA example the case where you have deformed letters and numbers semi-obscured by other shapes. While humans can easily differentiate these characters from the distractions, computer programs have a tough time segregating the signals from the noise.
Evolutionary speaking, while AI keeps evolving all the time, humans have kind of sowed down in comparison. For ex: Researchers at the AI company Vicarious may have just made CAPTCHAs obsolete, however, by creating a machine-learning algorithm that mimics the human brain. They have created a artificial neural network that the firm claims can solve CAPTCHA puzzles by simulating the human capacity of "common sense". It works on a neural network that can suss out the shape of letters and numbers while while filtering out the distracting noise, by mimicking how a human brain works.
The artificial neural network attacks the problem in layers with each neuron attempting a part of the problem and then combining all solutions to come up with complete solution of the CAPTCHA. Solving CAPTCHAs is not the goal of the research, but it provides insight into how our brains work and how computers can replicate it.
According to security experts, we can expect to see hackers to make use of these technologies in a few months. So CAPTACHAs will become less effective in keeping the bots out.
As AI keeps getting better at solving the CAPTCHAs, designers are coming up with more and more creative ways and these affect both humans and non-humans.
For example some sites have a small passage followed by a simple question about the content matter to test if the attempt was made by a human.
CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. I haws been named after the computer scientist Alan Turing.
What is a Turing Test?
Turing test is used by humans to see if a machine can converse like a human. The turing test has evolved to an interesting concept. Today, its a scenario in which a human interrogator uses some sort of interface, often a computer terminal, to communicate with someone else. This some one else could be a another computer program or a human being.If a computer program manages to fool most of the human interrogators into believing that it's a human, the program is said to have the turing test.
The CAPTCHA test is a turing test designed as a short hand for a gateway that allows humans to pass through while keeping machines at the border. The idea of a CAPTCHA is to build something which is simple for a human being to decipher while difficult for a machine to do so. This is important because it does not do any good if it discourages humans to fill out the said firm.
There are a few things a software can do better than humans, like driving a car or playing a game of chess under normal circumstances, but there are still things that humans can do better, at least that's how things stand today.
A simple CAPTCHA example the case where you have deformed letters and numbers semi-obscured by other shapes. While humans can easily differentiate these characters from the distractions, computer programs have a tough time segregating the signals from the noise.
Evolutionary speaking, while AI keeps evolving all the time, humans have kind of sowed down in comparison. For ex: Researchers at the AI company Vicarious may have just made CAPTCHAs obsolete, however, by creating a machine-learning algorithm that mimics the human brain. They have created a artificial neural network that the firm claims can solve CAPTCHA puzzles by simulating the human capacity of "common sense". It works on a neural network that can suss out the shape of letters and numbers while while filtering out the distracting noise, by mimicking how a human brain works.
The artificial neural network attacks the problem in layers with each neuron attempting a part of the problem and then combining all solutions to come up with complete solution of the CAPTCHA. Solving CAPTCHAs is not the goal of the research, but it provides insight into how our brains work and how computers can replicate it.
According to security experts, we can expect to see hackers to make use of these technologies in a few months. So CAPTACHAs will become less effective in keeping the bots out.
As AI keeps getting better at solving the CAPTCHAs, designers are coming up with more and more creative ways and these affect both humans and non-humans.
For example some sites have a small passage followed by a simple question about the content matter to test if the attempt was made by a human.
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