Topological Mappings of Video and Audio Data

@article{Fyfe2008TopologicalMO,
  title={Topological Mappings of Video and Audio Data},
  author={Colin Fyfe and Wesam Barbakh and Wei Chuang Ooi and Hanseok Ko},
  journal={International journal of neural systems},
  year={2008},
  volume={18 6},
  pages={481-9}
}
We review a new form of self-organizing map which is based on a nonlinear projection of latent points into data space, identical to that performed in the Generative Topographic Mapping (GTM).(1) But whereas the GTM is an extension of a mixture of experts, this model is an extension of a product of experts.(2) We show visualisation and clustering results on a data set composed of video data of lips uttering 5 Korean vowels. Finally we note that we may dispense with the probabilistic… CONTINUE READING

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