The infinite Student's t-mixture for robust modeling

X Wei, C Li - Signal Processing, 2012 - Elsevier
Finite mixture models have been widely used for modeling probability distribution of real
data sets due to its benefits from analytical tractability. Among the finite mixtures, the finite …

Bounded asymmetrical student's-t mixture model

TM Nguyen, QMJ Wu - IEEE transactions on cybernetics, 2013 - ieeexplore.ieee.org
The finite mixture model based on the Student's-t distribution, which is heavily tailed and
more robust than the Gaussian mixture model (GMM), is a flexible and powerful tool to …

Asymmetric mixture model with simultaneous feature selection and model detection

TM Nguyen, QMJ Wu, H Zhang - IEEE Transactions on Neural …, 2014 - ieeexplore.ieee.org
A mixture model based on the symmetric Gaussian distribution that simultaneously treats the
feature selection, and the model detection has recently received great attention for pattern …

Variational Bayesian inference for finite inverted Dirichlet mixture model and its application to object detection

Y Lai, Y Ping, W He, B Wang, J Wang… - Chinese Journal of …, 2018 - Wiley Online Library
As a variant of Finite mixture model (FMM), finite Inverted Dirichlet mixture model (IDMM)
can not avoid the conventional challenges, such as how to select the appropriate number of …

Modified student's t ‐hidden Markov model for pattern recognition and classification

H Zhang, QMJ Wu, TM Nguyen - IET Signal Processing, 2013 - Wiley Online Library
The Gaussian hidden Markov model has been successfully used in pattern recognition and
classification applications; however, recently the Student's t‐mixture model is regarded as …

Component splitting-based approach for multivariate beta mixture models learning

N Manouchehri, H Nguyen… - 2019 IEEE Global …, 2019 - ieeexplore.ieee.org
Mixture models have become arguably one of the most widely used statistical approaches to
perform inference on various types of data and have been successfully applied in data …

Fully bayesian learning of multivariate beta mixture models

M Amirkhani, N Manouchehri… - 2020 IEEE 21st …, 2020 - ieeexplore.ieee.org
Mixture models have been widely used as statistical learning paradigms in various
unsupervised machine learning applications, where labeling a vast amount of data is …

Predictive distribution of the dirichlet mixture model by local variational inference

Z Ma, A Leijon, ZH Tan, S Gao - Journal of Signal Processing Systems, 2014 - Springer
In Bayesian analysis of a statistical model, the predictive distribution is obtained by
marginalizing over the parameters with their posterior distributions. Compared to the …

Bayesian estimation of beta mixture models with variational inference

Z Ma, A Leijon - IEEE Transactions on Pattern Analysis and …, 2011 - ieeexplore.ieee.org
Bayesian estimation of the parameters in beta mixture models (BMM) is analytically
intractable. The numerical solutions to simulate the posterior distribution are available, but …

Online variational inference on finite multivariate beta mixture models for medical applications

N Manouchehri, M Kalra, N Bouguila - IET Image Processing, 2021 - Wiley Online Library
Technological advances led to the generation of large scale complex data. Thus, extraction
and retrieval of information to automatically discover latent pattern have been largely studied …