Search Results for author: Afsaneh Asaei

Found 6 papers, 0 papers with code

Information Theoretic Analysis of DNN-HMM Acoustic Modeling

no code implementations29 Aug 2017 Pranay Dighe, Afsaneh Asaei, Hervé Bourlard

We propose an information theoretic framework for quantitative assessment of acoustic modeling for hidden Markov model (HMM) based automatic speech recognition (ASR).

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Low-rank and Sparse Soft Targets to Learn Better DNN Acoustic Models

no code implementations18 Oct 2016 Pranay Dighe, Afsaneh Asaei, Herve Bourlard

Conventional deep neural networks (DNN) for speech acoustic modeling rely on Gaussian mixture models (GMM) and hidden Markov model (HMM) to obtain binary class labels as the targets for DNN training.

speech-recognition Speech Recognition

Exploiting Low-dimensional Structures to Enhance DNN Based Acoustic Modeling in Speech Recognition

no code implementations22 Jan 2016 Pranay Dighe, Gil Luyet, Afsaneh Asaei, Herve Bourlard

We propose to model the acoustic space of deep neural network (DNN) class-conditional posterior probabilities as a union of low-dimensional subspaces.

Dictionary Learning speech-recognition +1

On Structured Sparsity of Phonological Posteriors for Linguistic Parsing

no code implementations21 Jan 2016 Milos Cernak, Afsaneh Asaei, Hervé Bourlard

Building on findings from converging linguistic evidence on the gestural model of Articulatory Phonology as well as the neural basis of speech perception, we hypothesize that phonological posteriors convey properties of linguistic classes at multiple time scales, and this information is embedded in their support (index) of active coefficients.

Ad Hoc Microphone Array Calibration: Euclidean Distance Matrix Completion Algorithm and Theoretical Guarantees

no code implementations31 Aug 2014 Mohammad J. Taghizadeh, Reza Parhizkar, Philip N. Garner, Herve Bourlard, Afsaneh Asaei

This paper addresses the problem of ad hoc microphone array calibration where only partial information about the distances between microphones is available.

Low-Rank Matrix Completion

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