Customer-obsessed science
Research areas
-
October 23, 20266 min read“Controllable text to speech” makes speech more expressive, character voices more distinct and consistent.
-
October 22, 20266 min read
-
October 20, 20263 min read
-
October 12, 202614 min read
-
Featured news
-
COLING 20202020Recent progress through advanced neural models pushed the performance of task-oriented dialog systems to almost perfect accuracy on existing benchmark datasets for intent classification and slot labeling. However, in evolving real-world dialog systems, where new functionality is regularly added, a major additional challenge is the lack of annotated training data for such new functionality, as the necessary
-
COLING 20202020In large-scale commercial dialog systems, users express the same request in a wide variety of alternative ways with a long tail of less-frequent alternatives. Handling the full range of this distribution is challenging, in particular when relying on manual annotations. However, the same users also provide useful implicit feedback as they often paraphrase an utterance if the dialog system failed to understand
-
COLING 20202020Speech disfluencies have been hypothesized to occur before words that are less predictable and therefore more cognitively demanding. In this paper, we revisit this hypothesis by using OpenAI’s GPT-2 to calculate predictability of words as language model perplexity. Using the Switchboard corpus, we find that 51% of disfluencies occur at the highest, second highest, or within one token of the highest perplexity
-
Transactions of the Association for Computational Linguistics2020We describe an unsupervised method to create pseudo-parallel corpora for machine translation (MT) from unaligned text. We use multilingual BERT to create source and target sentence embeddings for nearest-neighbor search and adapt the model via self-training. We validate our technique by extracting parallel sentence pairs on the BUCC 2017 bitext mining task and observe up to a 24.5-point increase (absolute
-
COLING 20202020Currently, in spoken language understanding (SLU) systems, the automatic speech recognition (ASR) module produces multiple interpretations (or hypotheses) for the input audio signal and the natural language understanding (NLU) module takes the one with the highest confidence score for domain or intent classification. However, the interpretations can be noisy, and solely relying on one interpretation can
Collaborations
View allWhether you're a faculty member or student, there are number of ways you can engage with Amazon.
View all