Document (#25073)

Author
Polanco, X.
François, C.
Aly Ould Louly, M.
Title
¬An artificial neural network perspective on knowledge representation from databases : the use of a multilayer perception for data clusters cartography
Source
Structures and relations in knowledge organization: Proceedings of the 5th International ISKO-Conference, Lille, 25.-29.8.1998. Ed.: W. Mustafa el Hadi et al
Imprint
Würzburg : Ergon
Year
1998
Pages
S.64-71
Series
Advances in knowledge organization; vol.6
Abstract
In order to display the thematic organisation of knowledge space, we compare and evaluate two different cartographic approaches: principal components analysis (PCA), and artificial neural networks (ANNs) using a multilayer perceptron (MLP) in "self-association" mode. This kind of MLP can be used to perform a PCA if the activation function is set to the identity function. This allows us to look for the non-linear activation function which best fits the data structure. We present an evaluation criteria and the results and maps obtained with both methods.

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