Which innovative product design feature first allowed neural machine translation (NMT) systems to effectively handle context and improve idiomatic expressions across languages?

The world of translation and linguistics has been revolutionized by product design innovations. As language professionals adapt to new technologies, understanding the evolution of translation tools can provide insights into how product design responds to specialized industry needs. Test your knowledge about the technological milestones that have shaped modern language services and transformed how linguists work.

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Attention mechanisms that enabled the system to focus on different parts of a source sentence when generating each word of the translation
Dictionary-based lookup algorithms that could identify multiple meaning options for ambiguous words
Crowdsourced translation memory databases that stored previous human translations for reference
Voice recognition interfaces that allowed for spoken input rather than typed text