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» Estimating Likelihoods for Topic Models
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77
Voted
CSDA
2007
94views more  CSDA 2007»
15 years 23 days ago
Some extensions of score matching
Many probabilistic models are only defined up to a normalization constant. This makes maximum likelihood estimation of the model parameters very difficult. Typically, one then h...
Aapo Hyvärinen
85
Voted
ICC
2007
IEEE
104views Communications» more  ICC 2007»
15 years 7 months ago
Semiblind Carrier Frequency Offset Estimation for OFDM Systems
— In this paper we consider the problem of semiblind carrier frequency offset (CFO) estimation for OFDM systems. Specifically, we consider a synchronization scheme based on the ...
Tilde Fusco, Ferdinando Marrone, Mario Tanda
82
Voted
JCM
2007
78views more  JCM 2007»
15 years 21 days ago
Blind CFO Estimators for OFDM/OQAM Systems With Null Subcarriers
— This paper deals with the problem of blind carrier-frequency offset (CFO) estimation in OFDM systems based on offset quadrature amplitude modulation (OFDM/OQAM) with null subca...
Tilde Fusco, Mario Tanda
109
Voted
ICIP
2003
IEEE
16 years 2 months ago
Automatic contour estimation in fetal ultrasound images
This paper describes a new method for automatic estimation of the contours of the femur and of the cranial cross-section in fetal ultrasound images. Our approach can be described ...
Mário A. T. Figueiredo, Sandra V. B. Jardim
CSDA
2007
101views more  CSDA 2007»
15 years 23 days ago
The evaluation of evidence for exponentially distributed data
At present, likelihood ratios for two-level models are determined with the use of a normal kernel estimation procedure when the between-group distribution is thought to be non-nor...
C. G. G. Aitken, Qiang Shen, Richard Jensen, B. Ha...