Artificial intelligence.

Gone boys to visit this site: http://www.20q.net/, is crazy figata. What makes? Through a series of questions it succeeds to discover what you are thinking. I have tried for three times (I have thought football from soccer, rocket, pen) and has always indovinato. It will be magic? Absolutely not; it is the result of a study that has far origins, and door straight straight to a lot yearned for (or feared, it depends from the point of view) artificial intelligence.
“20q it is a advanced implementazione of a classic problem of artificial intelligence, put under form of a simple video game. The player thinks previously next to a any object, and the program tries indovinar it ponendogli questions that can have an answer of the type “or not”.
20q it is for 20 questions that is “20 questions”, because this was the title analogous it of quiz a radiotelevisivo one of years forty. Of usual 20q it places approximately 20 questions, but this number is indicative.
When the program is not in a position to indovinare an object, it surrenders and it asks the player to insert the answer from keyboard. To this point the new object becomes famous and comes saved in the base given, and thanks to the information given from the player, now in ahead could be indovinato.
In years seventy a similar game already existed, Animals, that it uses a binary tree in order to classify the animals and indovinar them for exclusion. 20q the much most adaptable one has a structure, it supports also answers of the type “perhaps” or “sometimes”, and is in a position to managing ambiguous situations in which the players it gives wrong or subjective information.
20q 1988 are based already beginning from on a developed program, that it uses a neurale net in order to classify the objects and to learn new acquaintances. In 1995 the program has been published under form of video game for browser, available in various languages between which the Italian; from then, anyone can participate liberations to the game, and every new word that the program does not succeed indovinare enters to make part of its acquaintances”. (wikepedia)

It marks it near: