How artificial intelligence learns from our habits and deceptions


2017-01-30 10:30:08




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How artificial intelligence learns from our habits and deceptions

Usually, to find the crime in your Network online, you need to know what to look for. Artificial intelligence, which sees hidden schemes, patterns, can do it better than humans — and even be ahead of the curve. Playing the video game Counter Strike know that it is difficult to turn around constantly and not to lose the essence of what is happening. In fast first person shooters, there will always be players with faster reflexes or a more acute eye.

But at the peak of popularity of the game a few years ago, people began to face with the players, the skills of which were too good. Shooters like Counter Strike and Half Life, another very popular game, got a problem in the face of players who used cheats, more software, fixing the sight on the target or allowing you to see through walls.

So in 2006, when online competition increased interest rates due to monetary prizes, came to the aid of a pair of unusual arbitrators. David Exell and bill Fitzgerald were mathematicians, who have just launched a company to develop artificial intelligence Featurespace in the laboratory of the University of Cambridge. Their program was well done here with the identification of odd behavior.

Featurespace has developed a system of machine learning that detect unexpected changes to data in real time. On the basis of these anomalies, it then took an educated guess on the subject of the probable reasons — and often it turns out that people do what should not.

The First test of the AI was a search for players who citerat (using dishonest methods) in video games. "Our technology allowed gaming companies to ensure that people will be able to play against people, not robots," says Exell. But AI Featurespace is now strictly observed and other types of activity. He became silent sentinel in the heart of online banking, ecommerce and insurance. It allows you to detect fraud and malware in the Internet and even helps compulsive gamblers.

Automatic detection of anomalies in real-time data is not something new — so spam filters weed out unwanted email messages or anti-virus software, intercepting malicious code, for example. But the discovery of such things as the rule requires, so that the system knows they are looking for. The antivirus software should get fresh data on the status of the fingerprints or signatures of malware.

But it will not help you to detect previously unseen activities. So Axel and Fitzgerald set out to build a system that can detect any type of behavior that deviates from the norm, and understand where it came from.

Their s — called "Arik" (Aric — ID individual adaptive changes in real time) is based on the work of the priest and mathematician in the 18th century Thomas Bayes. Bayes developed a way of thinking about probability when the probability of occurrence is calculated on the basis of what has been seen and has happened. Bayesian probability used by Alan Turing to find the submarines of the Nazis, based on their activity in the past.

And it can be used to determine when a player in Counter Strike, most likely a cheat. Tracking time-lapse data in the game, "Arik" marks an unusual bursts in the accuracy of individual players. It is obvious that they use the apt bots that play for them, says Axell. "Arik" has also noticed that some players surprisingly quickly attack their opponents, and concluded that they use a cheat that allows you to see through walls.

Then Featurespace has used his techniques to reduce the number of drones that the British military lose in the air. Tracking data anomalies in flight control, "Arik" found previously unknown errors that led to the failure of drones.

Fitzgerald died in 2014, but the technology he helped develop, changing methods of fraud detection. The first major commercial application Featurespace was carried out jointly with the British firm online gambling Betfair, which "Arik" revealed cases of irresponsible spending on rates — a sign that someone can put someone else's money. If "Arik" raises the alarm, Betfair instantly understands the situation — the transaction can be stopped on the fly, if necessary.

"Arik" is also starting to look for gamblers on their own. A series of high stakes can say that people behave compulsively. Apart from online betting, this system can also track activity on the slot machines and issue the warning signs. "If you can predict which players could become addicted, you can try to intervene before problems occur," says Featurespace CEO Martina king. Now "Arica" is used several major gaming firms.

But the biggest customers, "Arica" were banks and payment systems. Watching each stage of the transaction as its occurrence — for every-click on the drop down menu, as usually the person is moving on the website, he suddenly became a powerful tool in the fight against crime.

For example, the system can tell if someone uses a stolen Bank account details to login. A red flag will be raised if a person uses a web site, but his behavior is not consistent with a model which is familiar to the owner of the stolen information.

Similarly, if someone is behaving unusually, it may be a sign that he enters their Bank details, perhaps under pressure or under stress. Indecisiveness raise the alarm at the Bank, he will be interested in the reasons and may help.

Of Course, software doesn't end there, says kirk Breznikar from Hewlett Packard. To make such detection more powerful, Breznikar and his colleagues create computers specifically designed for handling dense datasets, of which the study program machine learning like "Arica". The hardware is Hewlett Packard — The Machine adds a huge amount of memory to each of its processors that can communicate among themselves with astonishing speed.

The result is a large amount of data that can perform all at once, which is very important for anomaly detection in increasingly large and complex data. Hewlett Packard plans to deal with hackers and malware, not scammers. But other firms in the Silicon valley is also connected to this. Intel recently purchased Saffron Technology, which makes the system able to detect and prevent fraud, by monitoring the "chaotic, unstructured" data. Featurespace also plans to upgrade the "Arica", by combining software with hardware faster to minimize false alarms.



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