I guarantee you that this app will surely blow your mind.In case,you haven't heard about the app,Akinator is an app that tries to read your mind and succeeds most of the time.

When you open the app,it asks for your nickname,your age and gender.And then starts the magic;think of a prominent famous celebrity,or even an imaginary character (be it about your parents,your crush or anything),and then it will ask you up to 20 questions,after which the app will nearly always guess the exact person or an imaginary character you had in mind. Isn't that simply amazing ?

Now,your first question would be how does this work? How can a program can guess apparently any person so correctly just by asking up 20 basic questions (or sometimes less than 20,if you thought of a very famous character)

As for how the program works, according to the site's frequently asked questions section, "Akinator uses the program Limule published by Elokence. The algorithm we use is an original creation. How we created it is our little secret."
There isn't much information about how the program uses Limule to make the program work so fluently.
But there are some other clues about how Akinator works. In the rare instances when the program doesn't know who you're thinking of after a lengthy series of asking questions, it asks you to upload your character's details in order to add it to its database. This provides you more insight into its working,suggesting that it has compiled an ever-evolving, massive log of characters that people have wanted it to guess, along with the answers they used to describe the characters before uploading them.
That way, the next time someone is thinking of someone obscure and infamous to stump the game, it will likely be able to get the right answer. In that sense, Akinator is a novel way of using Artificial Intelligence and a secret program combined with the wonders of crowd-sourcing all together to create a fun and shockingly accurate game.
And this Quora explainer seeks to make it a little easier for the layman to understand. Here's an excerpt: "Roughly speaking, you can think of the Akinator, or any other game of 20 questions, as a form of binary search. (Or as constructing a decision tree.) In the ideal case, you'd always be able to rule out half the remaining answers with every question, and you'd be able to narrow it down to one from around 2^20 = 1,048,576 possibilities in 20 questions. The specific algorithm the Akinator uses to decide between questions could probably be one of a number of things, but in any case the goal is definitely to divide the set of possibilities as close to in half as possible with each question."
The website and later the smartphone mobile app,was registered by France developers, according to the Whois web domain registry site. And Google Trends indicates that the European version of the website first went live in late 2007,and then it took a couple of years to spread up to other markets including the United States and other countries.

You should definitely try this app out and I am sure you would be mesmerized by the kind of the act it puts in front of you.

Download Akinator.

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