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Self-organizing mixture models
Abstract : We present an expectation-maximization (EM) algorithm that yields topology preserving maps of data based on probabilistic mixture models. Our approach is applicable to any mixture model for which we have a normal EM algorithm. Compared to other mixture model approaches to self-organizing maps (SOMs), the function our algorithm maximizes has a clear interpretation: it sums data log-likelihood and a penalty term that enforces self-organization. Our approach allows principled handling of missing data and learning of mixtures of SOMs. We present example applications illustrating our approach for continuous, discrete, and mixed discrete and continuous data.
Cited literature [28 references]
https://hal.inria.fr/inria-00321479
Contributor : Jakob Verbeek Connect in order to contact the contributor
Submitted on : Wednesday, February 16, 2011 - 4:22:52 PM
Last modification on : Friday, April 12, 2019 - 3:58:23 PM
Long-term archiving on: : Tuesday, May 17, 2011 - 2:25:46 AM
Contributor : Jakob Verbeek Connect in order to contact the contributor
Submitted on : Wednesday, February 16, 2011 - 4:22:52 PM
Last modification on : Friday, April 12, 2019 - 3:58:23 PM
Long-term archiving on: : Tuesday, May 17, 2011 - 2:25:46 AM
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