Comparison of Continuous-Density and Semi-Continuous HMM in Isolated Words Recognition Systems

T. Vaich; A. Cohen

doi:10.21437/eurospeech.1999-291

Comparison of Continuous-Density and Semi-Continuous HMM in Isolated Words Recognition Systems

T. Vaich
, A. Cohen

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

Several types of Semi-Continuous HMM (SC-HMM) have been compared with the Continuous Density HMM (CD-HMM) in the context of Speaker Independent Isolated Words Recognition (SI-IWR). It is demonstrated that for the ten-digit vocabulary (TIDIGITS), the SC-HMM outperforms the CD-HMM when memory constraints are imposed on the system. SC-HMMs demonstrate recognition rate of about 95% with a total of 59 Gaussians, while under similar conditions the CD-HMM yield recognition rates of well below 80%. An algorithm for optimal selection of Gaussian functions for SC-HMM is presented.

Original language	English
Pages	1515-1518
Number of pages	4
DOIs	https://doi.org/10.21437/eurospeech.1999-291
State	Published - 1 Jan 1999
Externally published	Yes
Event	6th European Conference on Speech Communication and Technology, EUROSPEECH 1999 - Budapest, Hungary Duration: 5 Sep 1999 → 9 Sep 1999

Conference

Conference	6th European Conference on Speech Communication and Technology, EUROSPEECH 1999
Country/Territory	Hungary
City	Budapest
Period	5/09/99 → 9/09/99

ASJC Scopus subject areas

Computer Science Applications
Software
Linguistics and Language
Communication

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10.21437/eurospeech.1999-291

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title = "Comparison of Continuous-Density and Semi-Continuous HMM in Isolated Words Recognition Systems",

abstract = "Several types of Semi-Continuous HMM (SC-HMM) have been compared with the Continuous Density HMM (CD-HMM) in the context of Speaker Independent Isolated Words Recognition (SI-IWR). It is demonstrated that for the ten-digit vocabulary (TIDIGITS), the SC-HMM outperforms the CD-HMM when memory constraints are imposed on the system. SC-HMMs demonstrate recognition rate of about 95\% with a total of 59 Gaussians, while under similar conditions the CD-HMM yield recognition rates of well below 80\%. An algorithm for optimal selection of Gaussian functions for SC-HMM is presented.",

author = "T. Vaich and A. Cohen",

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AU - Vaich, T.

AU - Cohen, A.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Several types of Semi-Continuous HMM (SC-HMM) have been compared with the Continuous Density HMM (CD-HMM) in the context of Speaker Independent Isolated Words Recognition (SI-IWR). It is demonstrated that for the ten-digit vocabulary (TIDIGITS), the SC-HMM outperforms the CD-HMM when memory constraints are imposed on the system. SC-HMMs demonstrate recognition rate of about 95% with a total of 59 Gaussians, while under similar conditions the CD-HMM yield recognition rates of well below 80%. An algorithm for optimal selection of Gaussian functions for SC-HMM is presented.

AB - Several types of Semi-Continuous HMM (SC-HMM) have been compared with the Continuous Density HMM (CD-HMM) in the context of Speaker Independent Isolated Words Recognition (SI-IWR). It is demonstrated that for the ten-digit vocabulary (TIDIGITS), the SC-HMM outperforms the CD-HMM when memory constraints are imposed on the system. SC-HMMs demonstrate recognition rate of about 95% with a total of 59 Gaussians, while under similar conditions the CD-HMM yield recognition rates of well below 80%. An algorithm for optimal selection of Gaussian functions for SC-HMM is presented.

UR - https://www.scopus.com/pages/publications/38049097102

U2 - 10.21437/eurospeech.1999-291

DO - 10.21437/eurospeech.1999-291

M3 - Paper

AN - SCOPUS:38049097102

SP - 1515

EP - 1518

T2 - 6th European Conference on Speech Communication and Technology, EUROSPEECH 1999

Y2 - 5 September 1999 through 9 September 1999

ER -

Comparison of Continuous-Density and Semi-Continuous HMM in Isolated Words Recognition Systems

Abstract

Conference

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