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- Amazon has previewed a new version of its voice assistant, Alexa, which is powered by "smarter and more conversational" artificial intelligence, similar to a chatbot.

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Amazon has previewed a new version of its voice assistant, Alexa, which is powered by "smarter and more conversational" artificial intelligence, similar to a chatbot.

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Amazon unveils a 'smarter' Alexa. Its AI has a lot of work to do.

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Amazon unveils a 'smarter' Alexa. Its AI has a lot of work to do.

By Geoffrey A. Fowler

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