Abstract
We study the extraction of principal manifolds (PMs) in high-dimensional spaces with modified self-organizing feature maps. Our algorithm embeds a lower-dimensional lattice into a high-dimensional space without topology violations by tuning the neighborhood widths locally. Topology preservation, however, is not sufficient for determining PMs. It still allows for considerable deviations from the PM and is rather unreliable in the case of sparse data sets. These two problems are solved by the introduction of a new principle exploiting the specific dynamical properties of the first-order phase transition induced by dimensional conflicts
Original language | English |
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Title of host publication | Neural Networks, 1996., IEEE International Conference on |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 480-483 |
Number of pages | 5 |
Volume | 1 |
ISBN (Print) | 0-7803-3210-5 |
DOIs | |
Publication status | Published - 1 Jun 1996 |
Keywords / Materials (for Non-textual outputs)
- data handling
- learning (artificial intelligence)
- network topology
- self-organising feature maps
- wavelet transforms
- first-order phase transition
- high-dimensional space
- lower-dimensional lattice
- neighborhood width
- parameter learning
- principal manifolds
- self-organizing maps
- sparse data sets
- topology preserving map
- Data mining
- Fluctuations
- Informatics
- Information representation
- Lattices
- Neurons
- Phase measurement
- Scattering
- Self organizing feature maps
- Topology