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Bios September 8, 2021

Dimitra Vergyri

Director, Speech Technology and Research Laboratory (STAR)

Dimitra Vergyri, Ph.D., research interests include information extraction from speech, voice analysis for emotional and cognitive assessment, acoustic and language modeling for languages with sparse training data, multiligual audio search, and machine translation.

She served from 2009 to 2012 as an associate editor for the IEEE Transactions on Audio Speech and Language Processing and has been part of reviewing panels and conference organizing technical committees.

Vergyri has published more than 40 papers in refereed conferences and journals. She obtained her Ph.D. degree from Johns Hopkins University in 2000.

Recent publications

more +
  • Speech‐based markers for post traumatic stress disorder in US veterans

    This study demonstrates that a speech-based algorithm can objectively differentiate PTSD cases from controls.

  • Tackling Unseen Acoustic Conditions in Query-by-Example Search Using Time and Frequency Convolution for Multilingual Deep Bottleneck Features

    This paper revisits two neural network architectures developed for noise and channel robust ASR, and applies them to building a state-of-art multilingual QbE system.

  • Speech recognition in unseen and noisy channel conditions

    This work investigates robust features, feature-space maximum likelihood linear regression (fMLLR) transform, and deep convolutional nets to address the problem of unseen channel and noise conditions in speech recognition.

  • Joint modeling of articulatory and acoustic spaces for continuous speech recognition tasks

    This  paper  investigates using deep neural networks (DNN) and convolutional neural networks (CNNs) for mapping speech data into its corresponding articulatory space. 

  • Toward human-assisted lexical unit discovery without text resources

    This work addresses lexical unit discovery for languages without (usable) written resources.

  • Fusion Strategies for Robust Speech Recognition and Keyword Spotting for Channel- and Noise-Degraded Speech

    Current state-of-the-art automatic speech recognition systems are sensitive to changing acoustic conditions, which can cause significant performance degradation.

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