Google Duplex: An AI System for Accomplishing Real World Tasks Over the Phone

Google Duplex: An AI System for Accomplishing Real World Tasks Over the Phone

  • May 9, 2018
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Google Duplex: An AI System for Accomplishing Real World Tasks Over the Phone

At the core of Duplex is a recurrent neural network (RNN) designed to cope with these challenges, built using TensorFlow Extended (TFX). To obtain its high precision, we trained Duplex’s RNN on a corpus of anonymized phone conversation data. The network uses the output of Google’s automatic speech recognition (ASR) technology, as well as features from the audio, the history of the conversation, the parameters of the conversation (e.g. the desired service for an appointment, or the current time of day) and more.

We trained our understanding model separately for each task, but leveraged the shared corpus across tasks. Finally, we used hyperparameter optimization from TFX to further improve the model.

Source: googleblog.com

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