We developed a variational Bayesian learning framework for the infinite generalized Dirichlet mixture model (ie a weighted mixture of Dirichlet process priors based on the …
In statistical modeling, parameter estimation is an essential and challengeable task. Estimation of the parameters in the Dirichlet mixture model (DMM) is analytically intractable …
W Fan, N Bouguila, D Ziou - IEEE transactions on neural …, 2012 - ieeexplore.ieee.org
In this paper, we focus on the variational learning of finite Dirichlet mixture models. Compared to other algorithms that are commonly used for mixture models (such as …
In this paper, a novel statistical generative model based on hierarchical Pitman-Yor process and generalized Dirichlet distributions (GDs) is presented. The proposed model allows us to …
This paper introduces a novel enhancement for unsupervised feature selection based on generalized Dirichlet (GD) mixture models. Our proposal is based on the extension of the …
J Taghia, Z Ma, A Leijon - IEEE transactions on pattern analysis …, 2014 - ieeexplore.ieee.org
This paper addresses the Bayesian estimation of the von-Mises Fisher (vMF) mixture model with variational inference (VI). The learning task in VI consists of optimization of the …
N Bouguila, D Ziou - IEEE Transactions on Neural Networks, 2009 - ieeexplore.ieee.org
In this paper, we propose a clustering algorithm based on both Dirichlet processes and generalized Dirichlet distribution which has been shown to be very flexible for proportional …
In this paper, we present an incremental method for model selection and learning of Gaussian mixtures based on the recently proposed variational Bayes approach. The method …
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 …