... Karhunen1
This research has been funded by the European Commission project BLISS, and the Finnish Center of Excellence Programme (2000-2005) under the project New Information Processing Principles.
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... structure2
By structure, we mean the sizes of the layers and the connections between the nodes. In principle, we could allow any directed acyclic graph connecting the latent and observed variables.
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... dynamic3
In [9], NFA was extended to include a model for the dynamics of the sources. A similar extension for HNFA would lead to hierarchical nonlinear dynamical factor analysis.
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... dimensions4
Higher dimensional SOMs become quickly intractable due to exponential number of parameters.
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