نتایج جستجو برای: bayesian inference

تعداد نتایج: 166417  

راعی, ابوالقاسم اسدالله, رضایی, علیرضا, نادی, ابوالفضل,

In this paper a new structure based on Bayesian networks is presented to improve mobile robot behavior, in which there exist faulty robot sensors. If a robot likes to follow certain behavior in the environment to reach its goal, it must be capable of making inference and mapping based on prior knowledge and also should be capable of understanding its reactions on the environment over time. Old ...

2013
Pengyu Wang Phil Blunsom

Approximate inference for Bayesian models is dominated by two approaches, variational Bayesian inference and Markov Chain Monte Carlo. Both approaches have their own advantages and disadvantages, and they can complement each other. Recently researchers have proposed collapsed variational Bayesian inference to combine the advantages of both. Such inference methods have been successful in several...

2009
John K. Kruschke

Bayesian Data Analysis. Bayesian inference is too narrow; Bayesian statistics is too broad. Bayes is a good brand name; Statistics using conditional. Bayesian Data Analysis: Straightline fitting. Stephen F. Gull. Cavendish Laboratory,. Madingley Road,. Cambridge CB3 OHE, U.K Abstract. A Bayesian Overview. Bayesian data analysis. John K. Kruschke. . Bayesian methods have garnered huge interest i...

2008
Eric-Jan Wagenmakers Michael Lee Tom Lodewyckx Geoff Iverson

1 Goals and Outline Throughout this book, the topic of order-restricted inference is dealt with almost exclusively from a Bayesian perspective. Some readers may wonder why the other main school for statistical inference – frequentist inference – has received so little attention here. Isn't it true that in the field of psychology, almost all inference is frequentist inference? The first goal of ...

2013
Pengyu Wang Phil Blunsom

This paper presents a collapsed variational Bayesian inference algorithm for PCFGs that has the advantages of two dominant Bayesian training algorithms for PCFGs, namely variational Bayesian inference and Markov chain Monte Carlo. In three kinds of experiments, we illustrate that our algorithm achieves close performance to the Hastings sampling algorithm while using an order of magnitude less t...

2014
Michalis K. Titsias Miguel Lázaro-Gredilla

We propose a simple and effective variational inference algorithm based on stochastic optimisation that can be widely applied for Bayesian non-conjugate inference in continuous parameter spaces. This algorithm is based on stochastic approximation and allows for efficient use of gradient information from the model joint density. We demonstrate these properties using illustrative examples as well...

2002
Haipeng Guo William Hsu

As Bayesian networks are applied to more complex and realistic real-world applications, the development of more efficient inference algorithms working under real-time constraints is becoming more and more important. This paper presents a survey of various exact and approximate Bayesian network inference algorithms. In particular, previous research on real-time inference is reviewed. It provides...

2014
Feng Yang

This paper suggests one method to process fMRI time series based on Bayesian inference for group analysis. The method is based on Bayesian inference to divide group into multilevel by session, subject and group levels. It compares covariance to select prior to reinforce posterior probability in group analysis. At the same time it combines classical statistics, i.e., t-statistics to obtain voxel...

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