نتایج جستجو برای: laplacian mixture model

تعداد نتایج: 2183060  

Journal: :DEStech Transactions on Engineering and Technology Research 2018

2012
Tomoya Okubo Kuninori Nakamura

In this research, a latent class vector model for pairwise data is formulated. As compared to the basic vector model, this model yields consistent estimates of the parameters since the number of parameters to be estimated does not increase with the number of subjects. The result of the analysis reveals that the model was stable and could classify each subject to the latent classes representing ...

2008
Gianluca Baio Marta A. Blangiardo

The problem of modelling football data has become increasingly popular in the last few years and many different models have been proposed with the aim of estimating the characteristics that bring a team to lose or win a game, or to predict the score of a particular match. We propose a Bayesian hierarchical model to address both these aims and test its predictive strength on data about the Itali...

2009
Shane T. Jensen Blakeley B. McShane Abraham J. Wyner

We have developed a sophisticated statistical model for predicting the hitting performance of Major League baseball players. The Bayesian paradigm provides a principled method for balancing past performance with crucial covariates, such as player age and position. We share information across time and across players by using mixture distributions to control shrinkage for improved accuracy. We co...

Journal: :Journal of Multivariate Analysis 2022

In modern contexts, some types of data are observed in high-resolution, essentially continuously time. Such units best described as taking values a space functions. Subject carrying the observations may have intrinsic relations among themselves, and by nodes large graph. It is often sensible to think that underlying signals these functional vary smoothly over graph, neighboring similar signals....

2001
Lancelot F. James Carey E. Priebe David J. Marchette D. J. MARCHETTE

The consistent estimation of mixture complexity is of fundamental importance in many applications of finite mixture models. An enormous body of literature exists regarding the application, computational issues and theoretical aspects of mixture models when the number of components is known, but estimating the unknown number of components remains an area of intense research effort. This article ...

Journal: :EAI Endorsed Trans. Cognitive Communications 2016
Sanjeev Gurugopinath Rangarao Muralishankar H. N. Shankar

In this work, we present a novel Goodness-of-Fit Test driven by differential entropy for spectrum sensing in cognitive radios, under three different noise models – Gaussian, Laplacian and mixture of Gaussians. We analyze the proposed detector under Gaussian noise which models the worst-case. We then analyze by considering the Laplacian noise process which has tails heavier than that of the Gaus...

2009
ABRAHAM J. WYNER

We have developed a sophisticated statistical model for predicting the hitting performance of Major League baseball players. The Bayesian paradigm provides a principled method for balancing past performance with crucial covariates, such as player age and position. We share information across time and across players by using mixture distributions to control shrinkage for improved accuracy. We co...

Journal: :transactions on combinatorics 2015
r. b. bapat sivaramakrishnan sivasubramanian

let $a = (a_{i,j})_{1 leq i,j leq n}$ be an $n times n$ matrixwhere $n geq 2$. let $dt(a)$, its second immanant be the immanant corresponding to the partition $lambda_2 = 2,1^{n-2}$. let $g$ be a connected graph with blocks $b_1, b_2, ldots b_p$ and with$q$-exponential distance matrix $ed_g$. we given an explicitformula for $dt(ed_g)$ which shows that $dt(ed_g)$ is independent of the manner in ...

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