One of the earliest chatbots, ELIZA simulated a Rogerian psychotherapist. It used pattern matching and substitution to give the illusion of understanding, despite having no real knowledge.
Visit ExhibitPARRY simulated a person with paranoid schizophrenia. It was one of the first chatbots to attempt to model a specific personality and mental disorder.
Visit ExhibitJabberwacky was an early attempt at creating an AI through human interaction. It learned from previous conversations to improve its responses over time.
Visit ExhibitA.L.I.C.E. (Artificial Linguistic Internet Computer Entity) used heuristic pattern matching to have more natural conversations. It won the Loebner Prize, an annual Turing test competition, multiple times.
Visit ExhibitSmarterChild was an intelligent agent available on AOL Instant Messenger and MSN Messenger. It provided conversational access to news, weather, facts, and more.
Visit ExhibitIBM Watson is a question-answering system that famously competed on Jeopardy! against human champions. It used natural language processing and machine learning to understand and answer complex questions.
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