Why do you do human review of 'Hey Portal' voice interactions?

We use both machine processes and human reviewers to train our voice services so that we can more accurately respond to your voice commands. Making sure that our voice services can understand and respond to a wide range of speech patterns, phrases, local dialects, and accents is important to us, and human reviewers are particularly helpful in identifying voice interactions that machines are likely to misinterpret.

For example, someone might say "Newark," but with their accent, Portal could interpret what they said as "New York." Human reviewers are also useful in evaluating how well “Hey Portal” executes on your voice command. For example, we can evaluate if Portal actually called the person you meant to call, and help improve Portal to respond more accurately over time.

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Last updated September 18, 2019
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