In recent years, data representation has emerged as an important research topic within machine learning.Read More
New Approach to Language Modeling Reduces Speech Recognition Errors by Up to 15%
Language models are a key component of automatic speech recognition systems, which convert speech into text. A language model captures the statistical likelihood of any particular string of words, so it can help decide between different interpretations of the same sequence of sounds.Read More
Distributed “Re-Ranker” Ensures That Alexa Improvements Reach Customers ASAP
Suppose that you say to Alexa, “Alexa, play Mary Poppins.” Alexa must decide whether you mean the book, the video, or the soundtrack. How should she do it?Read More
The role of context in redefining human-computer interaction
In the past few years, advances in artificial intelligence have captured our imaginations and led to the widespread use of voice services on our phones and in our homes.Read More
Context-Aware Deep-Learning Method Boosts Alexa Dialogue System’s Ability to Recognize Conversation Topics by 35%
Conversational-AI systems have traditionally fallen into two categories: goal-oriented systems, which help users fulfill requests, and chatbots, which carry on informative or entertaining conversations.Read More
Varying Speaking Styles with Neural Text-to-Speech
Amazon scientists have shown that our latest text-to-speech (TTS) system, which uses a generative neural network, can learn to employ a newscaster style from just a few hours of training data.Read More
Reducing Customer Friction through Skill Selection
This year, we’ve started to explore ways to make it easier for customers to find and engage with Alexa skills.Read More
Amazon helps launch workshop on automatic fact verification
At the 2018 Conference on Empirical Methods in Natural Language Processing (EMNLP), Amazon researchers and their colleagues at the University of Sheffield and Imperial College London will host the first Workshop on Fact Extraction and Verification, which will explore how computer systems can learn to recognize false assertions online.Read More
How an Echo Device Could Locate Snaps, Claps, and Taps
Microphone arrays like the ones in Echo devices are being widely investigated as a way to enable sound source localization. Sound reaches the separate microphones of the array at different times, and the differences can be used to calculate the direction of the sound’s source.Read More
Identifying sounds in audio streams
On September 20, Amazon unveiled a host of new products and features, including Alexa Guard, a smart-home feature available on select Echo devices later this year. When activated, Alexa Guard can send a customer alerts if it detects the sound of glass breaking or of smoke or carbon monoxide alarms in the home.Read More