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ITCC
2005
IEEE

A Scalable Generative Topographic Mapping for Sparse Data Sequences

8 years 9 months ago
A Scalable Generative Topographic Mapping for Sparse Data Sequences
We propose a novel, computationally efficient generative topographic model for inferring low dimensional representations of high dimensional data sets, designed to exploit data sparseness. The associated parameter estimation algorithm scales linearly with the number of non-zero entries in the observations while still learning a truly nonlinear generative mapping. The latent variables of the model lie in a 2D space that can be used for visualisation. We discuss related work and we provide experimental results on text based documents visualisation as well as the exploratory analysis of web navigation sequences.
Ata Kabán
Added 25 Jun 2010
Updated 25 Jun 2010
Type Conference
Year 2005
Where ITCC
Authors Ata Kabán
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