Hi... does anybody know what kind of algorithms and AI is used in chatterbots? Real programers are not afraid from maths! (I am) (from an Asfixia Member I think) JJpRiVaTe (Private Zone)

I''d say regular expressions for pattern matching and more or less sophisticated state machines for decision.

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Go look at alicebot.org (or maybe .net?).

I believe that they are the most common chatterbot out there right now.

The most known bot for chatting is ELIZA.
The quake II arena bots use a modified version of eliza for their chatter system.
Gamasutra has the MAsters'' thesis of the guy who wrote the bot, and he explains how his bot chats. Quite interesting really.
You might wanna look up the eliza code, too.


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For a rough idea, why not ask the bot itself? Most of the better ones are more than happy to tell you.