مشاهده مشخصات مقاله
A priori decision threshold parameter setting in speaker verification systems
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Authors |
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M. Raissi Dehkordi
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M.M. Homayounpour
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J. Kabudian
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Conference |
دوازدهمین کنفرانس بینالمللی سالانه انجمن کامپیوتر ایران |
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Abstract |
Threshold setting methods are one of the most important tasks in any speaker verification system. Equal Error Rate
(EER) and Minimum Error Rate (MER) criteria are usually used for performance evaluation in speaker verification
systems. It is important to know that EER and MER are two a posteriori methods for decision threshold estimation and
can not be used in real world applications. In real world applications decision thresholds should be determined a priori,
i.e. a validation phase is needed to conduct some inter-speaker and intra-speaker verification tests and to use obtained
distances or likelihoods for estimation of a priori decision thresholds. In this paper, we present a least square error
based method for calculation of parameters which we need to estimate decision thresholds. For this we use means and
variances of inter-speaker and intra-speaker distances and estimate necessary parameters for calculating decision
thresholds. The proposed method leads to an optimum a priori estimation of decision threshold values. |
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قیمت |
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برای اعضای سایت : 100,000 Rial
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برای دانشجویان عضو انجمن : 20,000 Rial
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برای اعضای عادی انجمن : 40,000 Rial
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خرید مقاله
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