Customer-obsessed science
Research areas
-
July 10, 20265 min readHydroShear, a new physics-based simulator, teaches robots how to use their sense of touch to perform complex manipulation tasks, in a way that transfers seamlessly to the real world.
-
July 9, 202610 min read
-
-
Featured news
-
Interspeech 20222022We address performance fairness for speaker verification using the adversarial reweighting (ARW) method. ARW is reformulated for speaker verification with metric learning, and shown to improve results across different subgroups of gender and nationality, without requiring annotation of subgroups in the training data. An adversarial network learns a weight for each training sample in the batch so that the
-
Interspeech 20222022This paper investigates an incremental learning framework for a real-world voice assistant employing RNN-Transducer based automatic speech recognition (ASR) model. Such a model needs to be regularly updated to keep up with changing distribution of customer requests. We demonstrate that a simple fine-tuning approach with a combination of old and new training data can be used to incrementally update the model
-
Interspeech 20222022Inference with large deep learning models in resource-constrained settings is increasingly a bottleneck in real-world applications of state-of-the-art AI. Here we address this by low-precision weight quantization. We achieve very low accuracy degradation by reparameterizing the weights in a way that leaves the weight distribution approximately uniform. We show lower bit-width quantization and less accuracy
-
Interspeech 20222022Creating realistic and natural-sounding synthetic speech remains a big challenge for voice identities unseen during training. As there is growing interest in synthesizing voices of new speakers, here we investigate the ability of normalizing flows in text-to-speech (TTS) and voice conversion (VC) modes to extrapolate from speakers observed during training to create unseen speaker identities. Firstly, we
-
Computer Assisted Language Learning Journal2022The research community has long studied computer-assisted pronunciation training (CAPT) methods in non-native speech. Researchers focused on studying various model architectures, such as Bayesian networks and deep learning methods, as well as on the analysis of different representations of the speech signal. Despite significant progress in recent years, existing CAPT methods are not able to detect pronunciation
Collaborations
View allWhether you're a faculty member or student, there are number of ways you can engage with Amazon.
View all