Results 31 to 40 of about 140,664 (140)

Dirichlet Posterior Sampling with Truncated Multinomial Likelihoods [PDF]

open access: yes, 2012
We consider the problem of drawing samples from posterior distributions formed under a Dirichlet prior and a truncated multinomial likelihood, by which we mean a Multinomial likelihood function where we condition on one or more counts being zero a priori.
Johnson, Matthew James, Willsky, Alan S.
core  

A Generalization of the Dirichlet Distribution

open access: yesJournal of Statistical Software, 2010
This paper discusses a generalization of the Dirichlet distribution, the ‘hyperdirichlet’, in which various types of incomplete observations may be incorporated.
Robin K. S. Hankin
doaj  

Combinatorial Information Theory: I. Philosophical Basis of Cross-Entropy and Entropy [PDF]

open access: yes, 2007
This study critically analyses the information-theoretic, axiomatic and combinatorial philosophical bases of the entropy and cross-entropy concepts. The combinatorial basis is shown to be the most fundamental (most primitive) of these three bases, since ...
Niven, Robert K.
core  

FSMJ: Feature Selection with Maximum Jensen-Shannon Divergence for Text Categorization

open access: yes, 2016
In this paper, we present a new wrapper feature selection approach based on Jensen-Shannon (JS) divergence, termed feature selection with maximum JS-divergence (FSMJ), for text categorization.
He, Haibo, Tang, Bo
core   +1 more source

A Continuous-time Topic Model for Word Burstiness [PDF]

open access: yesJisuanji gongcheng, 2016
To solve the problem that traditional topic models based on multinomial distribution cannot properly capture the condition of word burstiness,a continuous-time topic model with Dirichlet Compound Multinomial(DCM) for word burstiness is proposed,which ...
LIU Liangxuan,HUANG Mengxing
doaj   +1 more source

Rcapture: Loglinear Models for Capture-Recapture in R

open access: yesJournal of Statistical Software, 2007
This article introduces Rcapture, an R package for capture-recapture experiments. The data for analysis consists of the frequencies of the observable capture histories over the t capture occasions of the experiment. A capture history is a vector of zeros
Sophie Baillargeon, Louis-Paul Rivest
doaj  

Modelling world energy security data from multinomial distribution by generalized linear model under different cumulative link functions

open access: yesOpen Chemistry, 2018
Energy security is one of the major components of energy sustainability in the world’s energy performance. In this study, energy security is taken as an ordinal response variable coming from the multinomial distribution with the energy grade levels A, B,
Iyit Neslihan
doaj   +1 more source

Linear combination of chi-squares for multinomial process monitoring

open access: yesGestão & Produção, 2021
: Marcucci (1985) proposed a chi square goodness of fit statistic based generalized p-chart for multinomial process monitoring. A chi square distribution quantile was considered as a control chart limit.
Ramzi Talmoudi   +2 more
doaj   +1 more source

Simulating Longer Vectors of Correlated Binary Random Variables via Multinomial Sampling [PDF]

open access: yes, 2016
The ability to simulate correlated binary data is important for sample size calculation and comparison of methods for analysis of clustered and longitudinal data with dichotomous outcomes.
Shults, Justine
core   +1 more source

Benford Behavior in Stick Fragmentation Problems

open access: yesStats
Benford’s law states that in many real-world datasets, the probability that the leading digit is d equals log10((d+1)/d) for all 1≤d≤9. We call this weak Benford behavior.
Bruce Fang   +3 more
doaj   +1 more source

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