20q game how does it work

After a series of slightly odd questions -- including "Does it bring joy to people? It was right. So how does this 20Q device work? The short answer is "artificial intelligence. In , Canadian inventor Robin Burgener programmed a neural network a specialized form of computer program capable of playing 20 Questions, but without a library of knowledge about common objects. He proceeded to teach it twenty questions about the object "cat," then handed the program on floppy disk to friends and encouraged them to play, recording their play sessions as it went.

For 20Q, playing equals learning, as it develops "synaptic connections" whenever it receives answers to questions. It's able to reinforce connections by playing games over and over with different people, gradually learning which answers are correct and which aren't. Why does 20Q list contradictions at the end of a game? Why does 20Q ask unrelated questions?

Why won't 20Q learn my object? Do you censor the knowledgebase? Why does 20Q ask thirty questions? How do I change the batteries? The game doesn't work I have the toy and it doesn't work Well, almost free. You will be able to download and play the game for free and then you may pay to remove the ads. We are working on supporting more languages in the near future. You can always use the in-App purchase, and you will not be charged if you have already made that purchase.

For more information check out A Quick Tour. From the 20Q home page , select Play from the menu on the left, and then select "Play 20Q" choosing one of the languages.

On the next page, answer a few demographic questions and click "Play. Next, think of an object and answer the questions asked by the 20Q Artificial Intelligence A. Click on the answer that fits the object you are thinking of; the questions that follow will be displayed by 20Q with several choices. Click on what you believe to be the appropriate answer for that question. Don't worry about making a mistake; you can always scroll down and click on the questions to change your answer later.

You may change your answer to a question while playing the game. Select the question from the list of answered questions, then change your answer. You may also use the back button of your web browser, but 20Q may pick different questions than it did the first time.

Once the Update button has been pressed, the knowledgebase is permanently modified by the answers you gave it and you won't be able to go back. Don't despair.

Every game changes the knowledgebase a little bit; the game will be corrected over time by you or by other people playing the game. Sometimes when you get to the end of a game 20Q will tell you that there were contradictions. You may notice that 20Q can be wrong. Group up in teams and play against 20Q! Choose one player to think of something, anything and write it down on a piece of paper. The first team to guess before 20Q wins!

In the electronic versions of the game, a computer asks the questions and guesses the answer, usually correctly. The computer does this using a type of technology called artificial intelligence, which, very simply, gives it the ability to think like a human.