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Comparing computational and human measures of visual similarity
(World Scientific Publishing, 2005)
There have been many attempts to quantify visual similarity within different categories of objects, with a view to using such measures to predict impaired recognition performance. Although many studies have linked measures ...
Hierarchical topological clustering learns stock market sectors
(Institute of Electrical and Electronics Engineers (IEEE), 2005)
The breakdown of financial markets into sectors provides an intuitive classification for groups of companies. The allocation of a company to a sector is an expert task, in which the company is classified by the activity ...
Associative Memories with Small World Connectivity
(Springer Nature, 2005)
In this paper we report experiments designed to find the relationship between the different parameters of sparsely connected networks of perceptrons with small world connectivity patterns, acting as associative memories.
Hierarchical growing neural gas
(Springer Nature, 2005)
This paper describes TreeGNG, a top-down unsupervised learning method that produces hierarchical classification schemes. TreeGNG is an extension to the Growing Neural Gas algorithm that maintains a time history of the ...