Personal information

Other IDs

Scopus Author ID: 14027471600

Biography

Vivek Tyagi is a senior research scientist at CeADAR, University College Dublin. CeADAR is Ireland’s national centre for Applied AI. CeADAR is a market-focused technology centre that drives the accelerated research, development, and deployment of AI and data analytics technology and innovation into businesses.
Vivek obtained his PhD degree in speech recognition from the Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland and his Bachelor of Technology degree in Electrical Engineering from the Indian Institute of Technology (IIT) Kanpur. His research interests are in deep learning for speech recognition, natural language processing (NLP), biometrics, social media content moderation and in general Speech, Text, Vision AI enabled novel products for communications and collaboration. He is a senior member of IEEE and has published about 35 peer-reviewed papers in IEEE ICASSP, ISCA Interspeech, IEEE CVPR Workshops on Biometrics, IEEE ICPR, Elsevier Speech Communication Journal and IEEE Trans on Intelligent Transportation Systems. He has been granted about 12 patents in machine learning and speech recognition applications. In the past he has been a senior researcher/manager at LinkedIn Text-AI, Xerox Research India and IBM Research India. He is a Senior Member of IEEE and co-winner of the ISCA Award for the best paper published in the Speech Communication Journal (2006-2008): "Automatic speech recognition and speech variability: A Review".

Activities

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Employment (5)

CeADAR: Dublin, IE

2021-09-15 to present | Sr. Research Scientist (Innovation & Development Group (Artificial Intelligence) )
Employment
Source: Self-asserted source
Vivek Tyagi

LinkedIn : Bangalore, IN

2018-02-01 to 2021-04-10 | Text AI Staff Researcher/Manager (Artificial Intelligence )
Employment
Source: Self-asserted source
Vivek Tyagi

Xerox Research Center India: Bangalore, IN

2013-09-02 to 2016-05-10 | Senior Researcher/Manager (Speech Recognition AI)
Employment
Source: Self-asserted source
Vivek Tyagi

Interactive Intelligence Inc: Indianapolis, US

2011-09-01 to 2013-09-01 | Senior Researcher (Speech Recognition Machine Learning)
Employment
Source: Self-asserted source
Vivek Tyagi

IBM Research India: New Delhi, IN

2006-10-01 to 2011-09-01 | Research Scientist (Machine Learning)
Employment
Source: Self-asserted source
Vivek Tyagi

Education and qualifications (2)

École Polytechnique Fédérale de Lausanne: Lausanne, VD, CH

2001-08-01 to 2006-09-01 | PhD (School of Computer and Communication Sciences )
Education
Source: Self-asserted source
Vivek Tyagi

Indian Institute of Technology Kanpur: Kanpur, Uttar Pradesh, IN

1997-08-01 to 2001-06-01 | Bachelor of Technology (Electrical Engineering )
Education
Source: Self-asserted source
Vivek Tyagi

Professional activities (2)

International Speech Communications Association: Baixas, Pyrénées-Orientales, FR

ISCA Award for the best paper published in the Speech Communication Journal (2006-2008): "Automatic speech recognition and speech variability: A Review", R. De Mori, O. Deroo, S. Dupont, T. Erbes, D. Jouvet, L. Fissore, P. Laface, A. Mertins, C. Ris, R. Rose, Vivek Tyagi, and C. Wellekens, Volume 49, Issues 10-11, October-November 2007 Pages 763-786
Distinction
Source: Self-asserted source
Vivek Tyagi

IEEE: New York, NY, US

2011-12-01 to present | Senior Member (Signal Processing Society)
Membership
Source: Self-asserted source
Vivek Tyagi

Works (46)

Method and system for acoustic data selection for training the parameters of an acoustic model

2018-12 | Other
Source: Self-asserted source
Vivek Tyagi

Method and system for acoustic data selection for training the parameters of an acoustic model

2018-05 | Other
Source: Self-asserted source
Vivek Tyagi

Deep triphone embedding improves phoneme recognition

arXiv
2017 | Other
EID:

2-s2.0-85092839718

Part of ISSN: 23318422
Contributors: Yadav, M.; Tyagi, V.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Method and system for detecting sentiment by analyzing human speech

2017-11 | Other
Source: Self-asserted source
Vivek Tyagi

Methods and systems for identifying keywords in speech signal

2017-10 | Other
Source: Self-asserted source
Vivek Tyagi

Method and system for selectively biased linear discriminant analysis in automatic speech recognition systems

2017-06 | Other
Source: Self-asserted source
Vivek Tyagi

Hybrid context dependent CD-DNN-HMM Keyword Spotting (KWS) in speech conversations

IEEE International Workshop on Machine Learning for Signal Processing, MLSP
2016 | Conference paper
DOI: 10.1109/MLSP.2016.7738862
EID:

2-s2.0-85002263303

Part of ISSN: 21610371 21610363
Contributors: Tyagi, V.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Novel acoustic features for automatic dialog-act tagging

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
2016 | Conference paper
DOI: 10.1109/ICASSP.2016.7472850
EID:

2-s2.0-84973401208

Part of ISSN: 15206149
Contributors: Arsikere, H.; Sen, A.; Prathosh, A.P.; Tyagi, V.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Xerox Conversational AI Agent (XCAI) for Enterprise Knowledgebase Q&A

2016 | Journal article
Source: Self-asserted source
Vivek Tyagi

System and method for learning alternate pronunciations for speech recognition

2016-11 | Other
Source: Self-asserted source
Vivek Tyagi

Systems and methods for exploring and utilizing solutions to cyber-physical issues in a sandbox

2014-07 | Other
Source: Self-asserted source
Vivek Tyagi

Systems and methods for road acoustics and road video-feed based traffic estimation and prediction

2014-05 | Other
Source: Self-asserted source
Vivek Tyagi

Fusing biographical and biometric classifiers for improved person identification

Proceedings of the 21st International Conference on Pattern Recognition (ICPR2012)
2012 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Vehicular traffic density state estimation based on cumulative road acoustics

IEEE Transactions on Intelligent Transportation Systems
2012 | Journal article
Source: Self-asserted source
Vivek Tyagi

Biometric score fusion through discriminative training

IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
2011 | Conference paper
DOI: 10.1109/CVPRW.2011.5981833
EID:

2-s2.0-80054939522

Part of ISSN: 21607516 21607508
Contributors: Tyagi, V.; Ratha, N.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Fepstrum features: Design and application to conversational speech recognition

IBM Research Report
2011 | Journal article
Source: Self-asserted source
Vivek Tyagi

Towards a sustainable services ecosystem for traffic management

Proceedings - 2011 Annual SRII Global Conference, SRII 2011
2011 | Conference paper
DOI: 10.1109/SRII.2011.52
EID:

2-s2.0-80051927414
Contributors: Srivastava, B.; Huan, T.V.; Shang, W.X.; Nambiar, U.; Tyagi, V.; Kalyanaraman, S.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Method for protecting audio content

2011-07 | Other
Source: Self-asserted source
Vivek Tyagi

System and computer program product for protecting audio content

2011-07 | Other
Source: Self-asserted source
Vivek Tyagi

A gradient descent approach for multi-modal biometric identification

Proceedings - International Conference on Pattern Recognition
2010 | Conference paper
DOI: 10.1109/ICPR.2010.329
EID:

2-s2.0-78149486519

Part of ISSN: 10514651
Contributors: Basak, J.; Kate, K.; Tyagi, V.; Ratha, N.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

QPLC: A novel multimodal biometric score fusion method

2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Workshops, CVPRW 2010
2010 | Conference paper
DOI: 10.1109/CVPRW.2010.5543232
EID:

2-s2.0-77956556813
Contributors: Basak, J.; Kate, K.; Tyagi, V.; Ratha, N.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Maximum accept and reject (MARS) training of HMM-GMM speech recognition systems

Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
2008 | Conference paper
EID:

2-s2.0-84867192138

Part of ISSN: 19909772
Contributors: Tyagi, V.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Tandem processing of fepstrum features

Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
2008 | Conference paper
EID:

2-s2.0-84867206698

Part of ISSN: 19909772
Contributors: Tyagi, V.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Automatic speech recognition and speech variability: A review

Speech Communication
2007 | Journal article
DOI: 10.1016/j.specom.2007.02.006
EID:

2-s2.0-34547941599

Part of ISSN: 01676393
Contributors: Benzeghiba, M.; De Mori, R.; Deroo, O.; Dupont, S.; Erbes, T.; Jouvet, D.; Fissore, L.; Laface, P.; Mertins, A.; Ris, C. et al.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Diagnostics of speech recognition: on evaluating feature set performance

Proc. 12th Int. Conf. Speech and Computer (SPECOM’07)
2007 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Fepstrum: An improved modulation spectrum for ASR

Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
2007 | Conference paper
EID:

2-s2.0-56149087928

Part of ISSN: 19909772
Contributors: Tyagi, V.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

A variable-scale piecewise stationary spectral analysis technique applied to ASR

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2006 | Book
DOI: 10.1007/11677482_24
EID:

2-s2.0-33745520456

Part of ISSN: 03029743 16113349
Contributors: Tyagi, V.; Wellekens, C.; Bourlard, H.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Automatic speech recognition and intrinsic speech variation

2006 IEEE International Conference on Acoustics Speech and Signal Processing Proceedings
2006 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Comparative study of different features on OLLO logatome recognition task

Speech Recognition and Intrinsic Variation Workshop
2006 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Fepstrum and carrier signal decomposition of speech signals through homomorphic filtering

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
2006 | Conference paper
EID:

2-s2.0-33947661994

Part of ISSN: 15206149
Contributors: Tyagi, V.; Wellekens, C.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Impact of variabilities on speech recognition

Proc. SPECOM
2006 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Least squares filtering of speech signals for robust ASR

Speech communication
2006 | Journal article
Source: Self-asserted source
Vivek Tyagi

Least squares filtering of speech signals for robust ASR

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2006 | Book
DOI: 10.1007/11677482_23
EID:

2-s2.0-33745524179

Part of ISSN: 03029743 16113349
Contributors: Tyagi, V.; Wellekens, C.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

Novel speech processing techniques for robust automatic speech recognition

2006 | Report
Source: Self-asserted source
Vivek Tyagi

On variable-scale piecewise stationary spectral analysis of speech signals for ASR

Speech communication
2006 | Journal article
Source: Self-asserted source
Vivek Tyagi

A variable-scale piecewise stationary spectral analysis technique applied to ASR

International Workshop on Machine Learning for Multimodal Interaction
2005 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Adaptive enhancement of speech signals for robust ASR

COST278 Final Workshop and ITRW on Applied Spoken Language Interaction in Distributed Environments
2005 | Conference paper
Source: Self-asserted source
Vivek Tyagi

Fepstrum representation of speech signal

Proceedings of ASRU 2005: 2005 IEEE Automatic Speech Recognition and Understanding Workshop
2005 | Conference paper
DOI: 10.1109/ASRU.2005.1566475
EID:

2-s2.0-33846197546
Contributors: Tyagi, V.; Wellekens, C.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

On desensitizing the Mel-Cepstrum to spurious spectral components for Robust Speech Recognition

Proceedings.(ICASSP'05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.
2005 | Conference paper
Source: Self-asserted source
Vivek Tyagi

On variable-scale piecewise stationary spectral analysis of speech signals for ASR

9th European Conference on Speech Communication and Technology
2005 | Conference paper
EID:

2-s2.0-33745214472
Contributors: Tyagi, V.; Wellekens, C.; Bourlard, H.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

On De-emphasizing The Spurious Components in The Spectral Modulation for Robust Speech Recognition

COST278 and ISCA Tutorial and Research Workshop (ITRW) on Robustness Issues in Conversational Interaction
2004 | Conference paper
Source: Self-asserted source
Vivek Tyagi

On Multi-Scale Piecewise Stationary Spectral Analysis of Speech Signals for Robust ASR

2004 | Journal article
Source: Self-asserted source
Vivek Tyagi

Mel-cepstrum modulation spectrum (MCMS) features for robust ASR

2003 IEEE Workshop on Automatic Speech Recognition and Understanding (IEEE Cat. No. 03EX721)
2003 | Conference paper
Source: Self-asserted source
Vivek Tyagi

New entropy based combination rules in HMM/ANN multi-stream ASR

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings.(ICASSP'03).
2003 | Conference paper
Source: Self-asserted source
Vivek Tyagi

On factorizing spectral dynamics for robust speech recognition

EUROSPEECH 2003 - 8th European Conference on Speech Communication and Technology
2003 | Conference paper
EID:

2-s2.0-85009212153
Contributors: Tyagi, V.; McCowan, I.; Bourlard, H.; Misra, H.
Source: Self-asserted source
Vivek Tyagi via Scopus - Elsevier

On multi-scale fourier transform analysis of speech signals

2003 | Report
Source: Self-asserted source
Vivek Tyagi
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