Variational-based latent generalized Dirichlet allocation model in the collapsed space and applications
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DOI: 10.1016/j.neucom.2018.12.046
Abstract: Abstract In topic modeling framework, many Dirichlet-based models performances have been hindered by the limitations of the conjugate prior. It led to models with more flexible priors, such as the generalized Dirichlet distribution, that tend… read more here.
Keywords: dirichlet; dirichlet allocation; latent generalized; variational based ... See more keywords
Sparse Count Data Clustering Using an Exponential Approximation to Generalized Dirichlet Multinomial Distributions
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DOI: 10.1109/tnnls.2020.3027539
Abstract: Clustering frequency vectors is a challenging task on large data sets considering its high dimensionality and sparsity nature. Generalized Dirichlet multinomial (GDM) distribution is a competitive generative model for count data in terms of accuracy,… read more here.
Keywords: generalized dirichlet; count; exponential family; dirichlet multinomial ... See more keywords
On asymptotic properties of the generalized Dirichlet L-functions
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DOI: 10.1142/s1793042119500738
Abstract: Let [Formula: see text] be an integer, [Formula: see text] denote a Dirichlet character modulo [Formula: see text], for any real number [Formula: see text], we define the generalized Dirichlet [Formula: see text]-functions [Formula: see… read more here.
Keywords: properties generalized; generalized dirichlet; see text; formula see ... See more keywords