Customer-obsessed science
Research areas
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August 26, 20265 min readDiscounting the opinions of LLM judges with highly correlated outputs ensures that panels of judges reflect a true diversity of perspectives.
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August 21, 20269 min read
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July 30, 20268 min read
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July 9, 202610 min read
Featured news
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ESA 2022, Networks2022Motivated by a real-world vehicle routing application, we consider the maximum-weight independent set problem: Given a node-weighted graph, find a set of independent (mutually nonadjacent) nodes whose node-weight sum is maximum. Some of the graphs airsing in this application are large, having hundreds of thousands of nodes and hundreds of millions of edges. To solve instances of this size, we develop a
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Interspeech 20222022Neural vocoders have recently demonstrated high quality speech synthesis, but typically require a high computational complexity. LPCNet was proposed as a way to reduce the complexity of neural synthesis by using linear prediction (LP) to assist an autoregressive model. At inference time, LPCNet relies on the LP coefficients being explicitly computed from the input acoustic features. That makes the design
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AutoML Conference 20222022Key factors underpinning the optimal Knowledge Distillation (KD) performance remain elusive as the effects of these factors are often confounded in sophisticated distillation algorithms. This poses a challenge for choosing the best distillation algorithm from the large design space for existing and new tasks alike and hinders automated distillation. In this work, we aim to identify how the distillation
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Interspeech 20222022As deep speech enhancement algorithms have recently demonstrated capabilities greatly surpassing their traditional counterparts for suppressing noise, reverberation and echo, attention is turning to the problem of packet loss concealment (PLC). PLC is a challenging task because it not only involves real-time speech synthesis, but also frequent transitions between the received audio and the synthesized concealment
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Interspeech 20222022We propose a learning-to-rank (LTR) approach to the ASR rescoring problem. The proposed LTR framework has the flexibility of embracing wide varieties of linguistic, semantic, and implicit user feedback signals in rescoring process. BERTbased confidence models (CM) taking account of both acoustic and text information are also proposed to provide features better representing hypothesis quality to the LTR
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