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The use of systems of stochastic PDEs as priors for multivariate models with discrete structures
Gaussian distribution multivariate stochastic PDEs discrete structures
2012/9/17
A challenge in multivariate problems with discrete structures is the inclusion of prior information that may di er in each separate structure. A particular example of this is seismic amplitude versus ...
Inferring land use from mobile phone activity
Urban Computing Human Mobility Land Use Dynamic Population Mobile Phone Data Computational Social Sci-ence
2012/9/18
Understanding the spatiotemporal distribution of people within a city is crucial to many planning applications. Obtaining data to create required knowledge, currently involves costly survey methods. A...
Modelling outliers and structural breaks in dynamic linear models with a novel use of a heavy tailed prior for the variances: An alternative to the Inverted Gamma
Modelling outliers structural breaks Inverted Gamma
2011/7/19
In this paper we propose a new wider class of hypergeometric heavy tailed priors that are given as the convolution of a Student-t density for the location parameter and a Scaled Beta2 prior for the va...
How to use our talents based on Information Theory - or spending time wisely
talents based Information Theory time wisely
2010/10/19
We discuss the allocation of finite resources in the presence of a logarithmic diminishing return law, in analogy to some results from Information Theory. To exemplify the problem we assume that the ...
Efficient estimators：the use of neural networks to construct pseudo panels
pseudo-panels Kohonen map measurement error AIDS model
2010/4/26
Pseudo panels constituted with repeated cross-sections are good substitutes to true panel data. But individuals grouped in a cohort are not the same for successive periods, and it results in a measure...
On the use of self-organizing maps to accelerate vector quantization
use self-organizing maps vector quantization
2010/4/26
Self-organizing maps (SOM) are widely used for their topology preservation property: neighboring input vectors are quantified (or classified) either on the same location or on neighbor ones on a prede...
The use of variable kernel mass in density estimation
variable kernel mass density estimation
2009/9/21
The use of variable kernel mass in density estimation。
Use of Mixture of Distributions for the Error in Regression Models for Lifetime Data
Use of Mixture Distributions for the Error Regression Model Lifetime Data
2009/9/18
Use of Mixture of Distributions for the Error in Regression Models for Lifetime Data。
A powerful test based on tapering for use in functional data analysis
functional data analysis quadratic forms high-dimensional testing rates of testing Fourier decomposition
2009/9/16
A test based on tapering is proposed for use in testing a global linear hypothesis under a functional linear model. The test statistic is constructed as a weighted sum of squared linear combinations o...