Alexa is designed to get smarter every day. For example, we use your requests to Alexa to train our speech recognition and natural language understanding systems using machine learning. Training Alexa with real world requests from a diverse range of customers is necessary for Alexa to respond properly to the variation in our customers’ speech patterns, dialects, accents, and vocabulary and the acoustic environments where customers use Alexa. This training relies in part on supervised machine learning, an industry-standard practice where humans review an extremely small sample of requests to help Alexa understand the correct interpretation of a request and provide the appropriate response in the future. For example, a human reviewing a customer’s request for the weather in Perth can identify that Alexa misinterpreted it as a request for the weather in Tamworth. Our supervised learning process includes multiple safeguards to protect customer privacy. You can manage the use of your voice recordings to improve our services and develop new features by visiting Settings > Alexa Privacy > Manage Your Alexa Data in the Alexa app.
For more commonly asked questions, including how we use voice recordings to provide and improve our services and how other Amazon Alexa-enabled devices and features work, please visit Alexa and Alexa Device FAQs