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Which algorithm is used in the robot Sophia to understand and answer the questions?

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    $\begingroup$ Here is a related question, if not duplicate. $\endgroup$
    – nbro
    Commented Jan 26, 2021 at 18:08

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Sophia ,first , has all the questions and corresponding answers preprogrammed. It is a system which is a hybrid of Bayes Text classification and decision trees.

  • It may consist of a speak recognizer which converts the question into a string.

  • This string then travels into a algorithm which gets a suitable answer for it.

  • The answer is then spoken by the speech synthesizer along with some face actions.

  • It might also have a sentiment analyser which identifies sentiments in a answer to show face expressions accordingly.

  • Along with this, it identifies the emotions on the face of the person sitting in front of it, so as to provide a greater expression.

Hence, Sophia understands or thinks nothing like the human brain. It is just a system which gives predefined answers corresponding to the question asked.

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    $\begingroup$ This answer does not provide any evidence (links/references) to support what it says. $\endgroup$
    – nbro
    Commented Jan 27, 2021 at 11:58

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