Browsing by Author "Nabney, I."

Now showing items 1-4 of 4

A principled approach to interactive hierarchical non-linear visualization of high-dimensional data

Tino, P.; Nabney, I.; Sun, Yi.; Williams, B.S. (2001)

Hierarchical visualization systems are desirable because a single twodimensional visualization plot may not be sufficient to capture all of the interesting aspects of complex high-dimensional data sets. We extend an existing ...
Semi-supervised construction of general visualization hierarchies

Tino, P.; Sun, Yi.; Nabney, I. (CSREA Press, 2002)

We have recently developed a principled approach to interactive non-linear hierarchical visualization [8] based on the Generative Topographic Mapping (GTM). Hierarchical plots are needed when a single visualization plot ...
Using directional curvatures to visualize folding patterns of the GTM projection manifolds

Tino, P.; Nabney, I.; Sun, Yi. (2001)

In data visualization, characterizing local geometric properties of non-linear projection manifolds provides the user with valuable additional information that can influence further steps in the data analysis. We take ...
Visualization of incomplete data using class information constraints

Sun, Yi.; Tino, P.; Nabney, I. (Springer Nature Link, 2002)

We analyse how the training algorithm for the Generative Topographic Mapping (GTM) can be modifed to use class information to improve results on incomplete data. The approach is based on an Expectation-Maximisation (EM) ...