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Home » Archives for Victor Abrash
Victor Abrash

Victor Abrash

Senior Computer Scientist, Speech Technology and Research Laboratory
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Publications

Biomedical sciences publications May 1, 2015

Classification of Lexical Stress Using Spectral and Prosodic Features for Computer-assisted Language Learning Systems

Harry Bratt, Colleen Richey, Horacio Franco, Victor Abrash, Kristin Precoda

We present a system for detection of lexical stress in English words spoken by English learners. This system was designed to be part of the EduSpeak® computer-assisted language learning (CALL) software.

Speech & natural language publications May 1, 2014

Lexical Stress Classification for Language Learning Using Spectral and Segmental Features

Victor Abrash, Kristin Precoda, Horacio Franco, Harry Bratt, Colleen Richey

We present a system for detecting lexical stress in English words spoken by English learners.  The system uses both spectral and segmental features to detect three levels of stress for each syllable in a word. 

Speech & natural language publications December 1, 2011

SRILM at sixteen: Update and outlook

Victor Abrash

We review developments in the SRI Language Modeling Toolkit (SRILM) since 2002, when a previous paper on SRILM was published. 

Information & computer science publications July 1, 2010

EduSpeak®: A Speech Recognition and Pronunciation Scoring Toolkit for Computer-Aided Language Learning Applications

Horacio Franco, Harry Bratt, Victor Abrash, Kristin Precoda

SRI International’s EduSpeak® system is a SDK that enables developers of interactive language education software to use state-of-the-art speech recognition and pronunciation scoring technology.

Speech & natural language publications September 1, 2005

Robust Feature Compensation in Nonstationary and Multiple Noise Environments

Martin Graciarena, Horacio Franco, Victor Abrash

We extend the POF algorithm to allow a more accurate way to select noisy-to-clean feature mappings, by allowing different combinations of speech and noise to have combination-specific mappings selected depending on the observation.

Speech & natural language publications September 1, 2003

Development of Phrase Translation Systems for Handheld Computers: from Concept to Field

Horacio Franco, Kristin Precoda, Victor Abrash, Dimitra Vergyri

We describe the development and conceptual evolution of handheld spoken phrase translation systems, beginning with an initial undirectional system for translation of English phrases, and later extending to a limited bidirectional phrase translation system.

Speech & natural language publications March 1, 2002

DynaSpeak: SRI’s Scalable Speech Recognizer for Embedded and Mobile Systems

Horacio Franco, Victor Abrash

We introduce SRI’s new speech recognition engine, DynaSpeak(TM), which is characterized by its scalability and flexibility, high recognition accuracy, memory and speed efficiency, adaptation capability, efficient grammar optimization, support for natural language parsing functionality, and operation based on integer arithmetic.

Speech & natural language publications August 1, 2000

The SRI EduSpeak(TM) System: Recognition and Pronunciation Scoring for Language Learning

Horacio Franco, Harry Bratt, Kristin Precoda, Victor Abrash

The EduSpeak(TM) system is a software development toolkit that enables developers of interactive language education software to use state-of-the-art speech recognition and pronunciation scoring technology.

Speech & natural language publications September 1, 1997

Mixture Input Transformations for Adaptation of Hybrid Connectionist Speech Recognizers

Victor Abrash

In this paper, we propose a new algorithm to train mixtures of transformation networks (MTNs) in the hybrid connectionist recognition framework. We apply the new algorithm to nonnative speaker adaptation, and present recognition results for the 1994 WSJ Spoke 3 development set.

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